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Expected Delivery times on Orders

ZENZELE will aim to deliver 2 to 3 working days after payment reflects in our account, this is also subject to availability of stock, scheduled deliveries, weather conditions and any unforeseen events.

When planning you would like to know how long paver deliveries will take|

Normally allow 2-3 days from when your payment reflects in our bank account, usually 1-2 days depending on the bank.

As soon as your payment shows on our bank account we will contact you and arrange a convenient delivery time.

If we foresee a delay we will keep you updated.

What is the White Haze that randomly forms on the Bricks after a couple of weeks?

This white haze is called efflorescence.

What is efflorescence?

You are probably asking “What is Efflorescence and how might it affect my paving project?”

Efflorescence on concrete pavers occurs when moisture in and below the pavers carries soluble salts within the concrete to migrate to the surface and crystallize, leaving behind a white, powdery residue.

Preventing Efflorescence

Preventing efflorescence involves addressing several factors, including the quality of the concrete product, installation techniques, jointing material, drainage and the presence of a weed mat.

Some tips to prevent efflorescence|

  1. Quality Concrete Mix: Ensure that the concrete mix used for the pavers is of high quality and properly proportioned. Using low-quality materials or improper mixing ratios can increase the likelihood of efflorescence.
  2. Proper Installation: Ensure that the pavers are installed correctly according to manufacturer recommendations and industry best practices. Proper installation includes adequate base preparation, compaction, and proper drainage to minimize water infiltration.
  3. Should you use cement grouting between pavers

Using cement grouting between pavers will cause cracking of joints and popping out.

Over time using cement will inevitably fail due to difference in expansion between the paver and the cement grouting

Many installers mix cement and plaster sand for jointing, which is not recommended.

  1. Jointing Material Options

Polymeric Sand

Polymeric sand is specifically designed to resist efflorescence and to ensure long lasting grout stability.

They consist of a sand and polymer mix that remains flexible and does not crack.

They are expensive but work very well.

Kiln dried silica sand

The use of kiln dried silica sand for grouting is a good choice. When the dried sand is swept over dry pavers the gaps between the pavers will be completely filled and will not crack.

If the sand washes out over time it is easy to replace provided that the pavers are dry.

  1. Sealing

Consider applying a penetrating sealer to the surface of the pavers after installation. A high-quality sealer can help reduce water penetration into the concrete and minimize the occurrence of efflorescence. However, be cautious as some sealers may change the appearance of the pavers.

  1. Weed Mat

Installing a weed mat beneath the pavers can help prevent weed growth.

Ensure that the weed mat allows for proper drainage and consider using a breathable fabric to minimize moisture buildup.

Some installers use a sheet of construction plastic to prevent weed growth. This plastic is a low-cost option but allows pooling of water above and below the pavers. which can cause efflorescence.

Proper Maintenance

Regularly inspect the pavers for signs of efflorescence and address any issues promptly. This may include cleaning the surface with a mild detergent and water or applying efflorescence cleaners specifically designed for concrete surfaces.

More information

Awareness of the above factors during your installation can help you to avoid or minimize the occurrence of efflorescence and prolong the lifespan and aesthetic appeal of your outdoor space.

Ask a ZENZELE representative for advice on this topic when ordering your products.


Choosing Between Cement Stock Bricks and Clay Bricks

When commencing a new construction you may wonder whether to use cement or clay bricks.

To assist we discuss the differences so that you can take an informed decision

When it comes to building materials, bricks stand as the cornerstone of construction projects, offering durability, strength, and aesthetic appeal.

Among the array of brick options available, two prominent choices often stand out:

  • cement stock bricks
  • clay bricks

Each type boasts its own set of characteristics, advantages, and disadvantages, making the decision between them crucial for any construction project.

Here we discuss the key features, applications, advantages, disadvantages, and cost comparison of cement stock bricks and clay bricks.

Key Features

Cement Stock Bricks|

  • Composition: Cement stock bricks are primarily made from a mixture of cement, sand, and water. They are moulded into shape and cured under controlled conditions.
  • Appearance: These bricks typically have a uniform grey colour and a smooth texture.
  • Strength: Cement stock bricks are known for their strength and durability, making them suitable for load-bearing walls and structural applications.
  • Weather Resistance: They offer good resistance to weathering, making them suitable for both interior and exterior use.

Clay Bricks |

  • Composition: Clay bricks are crafted from natural clay, which is shaped into bricks and fired at high temperatures in a kiln.
  • Appearance: Clay bricks come in various shades ranging from red to brown, depending on the type of clay used. They often have a rustic texture that adds character to your building.
  • Strength: While clay bricks are strong and durable, they may not be as resistant to compression as cement stock bricks. However, they excel in terms of thermal insulation.
  • Weather Resistance: Clay bricks exhibit excellent resistance to weathering and maintain their structural integrity over time.

Best for Which Applications

Cement Stock Bricks|

  • Ideal for load-bearing walls in residential, commercial, and industrial buildings.
  • Suitable for projects where structural strength and durability are paramount, such as foundations and retaining walls.
  • Often used in applications where a smooth, uniform finish is desired, such as facades and partition walls.

Clay Bricks |

  • Perfect for both structural and non-structural applications, including walls, pavements, and landscaping features.
  • Preferred for projects where thermal insulation is a priority, such as energy-efficient homes and buildings.
  • Often chosen for their aesthetic appeal due to colour and texture.

Advantages & Disadvantages |

Cement Stock Bricks|

  • Advantages|
    • High strength and durability.
    • Uniform appearance and smooth texture.
    • Suitable for load-bearing structures.
  • Disadvantages|
    • Limited aesthetic variety compared to clay bricks.

Clay Bricks |

  • Advantages:
    • Excellent thermal insulation properties.
    • Aesthetic appeal with natural color variations and textures.
    • Environmentally friendly, as they are made from natural clay.
  • Disadvantages:
    • May not be as strong under heavy loads compared to cement stock bricks.
    • Costlier than cement stock bricks in some regions due to manufacturing processes.

Cost Comparison

The cost of cement stock bricks and clay bricks can vary depending on factors such as location, availability of raw materials, and manufacturing processes. Generally, cement stock bricks tend to be more affordable than clay bricks due to the lower cost of materials and production. However, the difference in cost may not always be significant, especially when considering factors such as transportation and installation.

In regions where clay is abundant and manufacturing facilities are accessible, clay bricks may be competitively priced compared to cement stock bricks. Additionally, factors such as energy efficiency and long-term durability can influence the overall cost-effectiveness of each brick type over the lifespan of a structure.


When deciding between cement stock bricks and clay bricks for your construction project, it’s essential to consider the specific requirements, budget constraints, and desired aesthetic outcomes. Cement stock bricks offer exceptional strength and durability, making them suitable for load-bearing structures, while clay bricks excel in thermal insulation and aesthetic appeal. By carefully evaluating the key features, applications, advantages, disadvantages, and cost comparison of each brick type, you can make an informed decision that meets your project needs and ensures lasting quality.

Concrete Pavers | You decide!

Concrete pavers offer a versatile and durable option for various outdoor projects, but it’s essential to consider potential challenges before making a decision. Let’s delve into these challenges and explore some solutions |

Uneven Base |

  • If the base for the pavers is not properly leveled and compacted, it can lead to uneven settling and shifting over time.
  • Solution | Ensure thorough base preparation, including proper leveling and compaction.

Poor Drainage |

  • Inadequate drainage can cause water pooling on the surface, leading to erosion of the base and potential shifting or sinking of the pavers.
  • Solution | Design the base with proper slope for effective water runoff.

Weed Growth |

  • Gaps between pavers can become weed havens. Without weed barriers or joint sand, weeds may persistently emerge.
  • Solution | Use weed barriers or polymeric sand to prevent weed growth.

Incorrect Joint Sand |

  • Using the wrong type or insufficient joint sand can lead to instability and paver movement.
  • Solution | Opt for polymeric sand that hardens when wet, ensuring stability and weed prevention.

Lack of Edging |

  • Without proper edging, pavers may spread or shift over time, resulting in an uneven surface.
  • Solution | Install sturdy edging to contain the pavers.

Frost Damage |

  • In regions with freeze-thaw cycles, inadequate base preparation or poor drainage can cause frost damage.
  • Solution | Properly prepare the base and ensure effective drainage to prevent lifting due to freezing water.

Improper Alignment |

  • Incorrect alignment during installation can lead to crooked or misaligned pavers.
  • Solution | Pay attention to precise alignment for an aesthetically pleasing result.

Cracking |

  • Concrete pavers can crack under excessive weight or if not well-supported by the base.
  • Solution | Ensure proper base support and avoid heavy loads.

Colour Variations |

  • Manufacturing processes and materials may result in color variations between pavers.
  • Solution | Choose pavers from the same batch to maintain consistent color.

Efflorescence |

  • A common issue, efflorescence occurs when soluble salts and minerals migrate to the surface, leaving white deposits.
  • Solution | Regular cleaning and sealing can minimize efflorescence.

Remember that proper maintenance is crucial for the longevity and appearance of your concrete pavers. Consider these factors carefully to make an informed decision for your project! 

The Real Cost for Concrete Pavers*

Cost to budget is important when considering concrete paving. Know the main cost factors influencing concrete paving and how they impact your investment.

The Cost Factors for Consideration |

  • Cost of Pavers from the Factory
  • Transport cost to your site
  • Site preparation
  • Installation

Cost of Pavers from the Factory |

ZENZELE Pavers are manufactured at a varying of price points depending on their intended use and quality.

Light-duty applications | Walkways and entertainment areas, thinner pavers are suitable, this typically will lower the cost to budget.

Heavy-duty applications | Driveways and commercial Parking, thicker, more durable pavers, this typically will increase the cost to budget.

Buying direct from the ZENZELE factory is more economical than buying from a distributor or retailer.

Typical Cost Range per m²*

Light duty pavers            From R140 to R175

Heavy duty paver            From R175 to R230

Transport Cost to Your Site |

Transportation and delivery fluctuate constantly, paver weight, distance, and order quantity are factors in transportation costing.

Thicker pavers and longer delivery distances generally result in higher transportation costs, ranging from moderate to high.

Site accessibility or special handling requirements will impact transportation expenses.

Collection |

Own Transport and Collection can help your budget. If your choice is to collect, arrange when placing your order.

Typical Cost Range: Per load*

50mm Bevel Pavers 120 m2 per load (12 pallets)

0-15 km               R1200 to R1400

16-30km              R1900 to R 2300

31-60km              R3000 to R 3700

61-90km              R5000 to R 6500

Loading information |

Thicker pavers transport cost per load is the same as above, but less m2 product per load.

60mm Interlock Pavers 100m2 per load (10 pallets)

80mm Interlock Pavers 76.8m2 per load (8 Pallets – less m2 to facilitate loading)

How many pavers per m2 ? – 50 /m2 for all the above

What is the pallet weight?

50mm 500 pavers 10 m2 1050kg

60mm 500 pavers 10 m2 1250kg

80mm 480 pavers 9.6m2 1650kg (Reduced weight to facilitate loading)

Site Preparation |

Site preparation costs are influenced by | clearing, levelling, and existing landscape features.

Site inspection watch points | rocks, trees, vegetation, and clay subsoil.

Steep slopes and water drainage requirements can increase preparation costs.

Typical Cost Range: From R40 to R120 per square meter*.

Paver Installation |

Installation expenses are influenced by project complexity and contractor expertise.

Basic installations with standard requirements can start from a lower cost point, while customised projects with more variables will cost more.

When choosing an installation contractor consider skill and experience. Ask the contractor to show examples of work done and customer reviews. Visit a Contractors latest project and ask the customer for their opinion. Do not neglect this.

If you are experienced in construction or a dedicated DIY enthusiast, you can save on your budget by doing the all or part of the installation yourself.

Typical Cost Range: From R125 to R150 per square meter*.

Additional Landscaping Features|

Integrating landscaping alongside paving can add to the overall project cost.

Basic features may fall within a lower cost range, while additions like water features and fire pits can increase budget costs.

View your Entire project needs as a single finished investment. Any additional work is more cost effective when done at the same time instead of later.

Discuss this with your paving installer to get an idea of how the paving costs will be impacted.

Typical Cost Range varies according to the type of features required.

Factors That Increase Costs |

Thicker pavers, further transport distances, and complex site conditions contribute to higher costs.

Customisations, premium materials, and additional landscaping elements will increase project expenses.

Factors That Decrease Costs |

Using standard or thinner pavers, source materials from local factories, and minimise site preparation needs can help reduce costs.

DIY installation, basic landscaping choices, and strategic project planning can also lead to cost savings.

Own Transport or Collection will save transport costs.

A Buyers considerations

Discounts may be available for bulk orders or for regular customers.

Compatibility with competitors’ products and customisation options may also impact pricing, with costs varying accordingly.

Thank You from ZENZELE

By understanding this information and exploring the available options, you as property owner can navigate your project more confidently and effectively manage costs within your budget constraints, reaping the reward in your investment.

Note | *Money amounts used in the guide are for planning purposes only, actual prices will be dependent on your specific project and its requirements. April 2024

Concrete Paver Colours | What Should I Know?

What are paver pigments?

    • Paver pigments are iron oxide materials added to concrete or other paving materials to impart colour.

What colours are available for paver pigments?

    • Paver pigments come in a wide range of colours, including earth tones, reds, browns, greys.

Are paver pigments fade-resistant?

    • Yes, high-quality paver pigments are formulated to resist fading from UV exposure, ensuring long-lasting vibrancy even in outdoor environments.

Do paver pigments affect the durability of the pavers?

    • No, when used in appropriate concentrations, paver pigments do not compromise the structural integrity or durability of the pavers. They are designed to withstand the same wear and tear as standard concrete pavers.

Can paver pigments be customized to match specific colours or designs?

    • Yes, some manufacturers offer custom colour matching services, allowing customers to create pavers that complement their unique aesthetic preferences or blend seamlessly with existing architectural elements.

Are paver pigments environmentally friendly?

    • Paver pigments are typically formulated to meet environmental regulations and standards. It’s essential to choose pigments that are free from harmful chemicals and heavy metals to ensure minimal environmental impact.

How do I maintain the colour of my coloured pavers ?

    • Regular maintenance, such as cleaning with mild detergents and sealing the surface, can help preserve the colour of pigmented pavers. Avoid harsh chemicals and abrasive cleaning methods to preserve the lifespan of the colour.

Can paver pigments be used for both residential and commercial projects?

    • Yes, paver pigments are suitable for a wide range of applications, including driveways, walkways, patios, pool decks, and commercial projects.

How do prices vary with paver colour

The pricing of pavers can vary based on several factors, including the colour of the paver. Here’s how prices might vary with paver colour.

Standard Colours

    • Pavers that come in standard colours, such as basic grey or earth tones, are often more affordable since they are mass-produced and readily available. On the other hand, custom colours, which require specialized pigment formulations or custom manufacturing processes, may come at a premium.

Pigment Quality and Cost

    • The colour of pigments used to achieve certain colours can vary in cost. Various paving colours may have differing prices. Plain pavers without pigment are grey and sell at the lowest cost.

Customization Options

    • If a customer requests a specific colour or custom blend that deviates from standard offerings, there may be additional costs associated with customizing the pavers to meet their specifications. This can include colour matching services, custom pigment blends, or minimum order quantities.

Overall, while paver colour can influence pricing to some extent, it’s just one of several factors that contribute to the overall cost of pavers.

Customers should consider their budget, aesthetic preferences, and project requirements when selecting pavers, weighing the price against factors such as durability, longevity, and design flexibility.

What is the difference between Dry-cast and Wet-cast pavers?

Both dry cast and wet cast pavers have their own advantages and considerations, the choice between the two ultimately depends on factors such as budget, design preferences, and project requirements. Dry cast pavers offer you cost-effectiveness, rugged appearance, and superior durability, while wet cast pavers provide a sleek finish, wider colour options, and décor integration.

When considering paving for your property, as the customer you need as much information to make an informed decision.

Cost Considerations

Dry Cast Pavers | Dry cast pavers are often more cost-effective than their wet cast counterparts. This is primarily due to the manufacturing process, which involves using concrete mixtures with lower water content. The reduced water content means shorter curing times and less energy consumption during production. Additionally, dry casting typically requires simpler machinery and equipment, leading to lower initial investment costs for manufacturers.

Wet Cast Pavers | On the other hand, wet cast pavers tend to be more expensive to produce. The wet casting process involves pouring a slurry of concrete with higher water content into moulds, which requires longer curing times and more complex equipment. As a result, manufacturing wet cast pavers can be more labour-intensive and resource-intensive, leading to higher production costs.

Appearance & Texture

Dry Cast Pavers | Dry cast pavers are known for their rugged appearance and varied surface texture. The lower water content in the concrete mixture results in a rougher texture with sharper edges and texture variations. This rustic aesthetic is well-suited for outdoor spaces and projects aiming for a natural look. The rougher texture also makes these more slip resistant.

Wet Cast Pavers | In contrast, wet cast pavers have a smoother surface finish with uniform edges. The higher water content in the concrete mixture allows for a more consistent texture, making wet cast pavers ideal for projects with a modern or contemporary design scheme. The use of simpler moulds allows for a large variety of shapes and thicknesses.

Durability & Strength

Dry Cast Pavers | Dry cast pavers are renowned for their durability and strength. The lower water content in the concrete mixture results in a denser and more compact structure, enhancing the pavers’ resistance to cracking, chipping, and other forms of damage. This makes dry cast pavers suitable for high-traffic areas and harsh outdoor environments.

Wet Cast Pavers | While wet cast pavers still offer good durability, they may be slightly less robust compared to dry cast pavers. The higher water content in the concrete mixture can result in a more porous structure, making wet cast pavers more susceptible to damage from heavy loads or harsh weather conditions. However, with proper installation and maintenance, wet cast pavers can still provide long-lasting performance.

Colour Options & Availability

Dry Cast Pavers | Dry cast pavers typically offer a more limited range of colour options compared to wet cast pavers. The lower water content in the concrete mixture can make it challenging to achieve vibrant or custom colours. However, standard colour options are still widely available to meet various design preferences. Dry cast pavers very often have a coloured topping only.

Wet Cast Pavers | Wet cast pavers often provide a wider range of colour choices, including custom colours and finishes. The higher water content in the concrete mixture allows for better colour saturation and customization options, making wet cast pavers a preferred choice for projects with specific colour requirements or design visions. Wet-cast pavers are usually coloured throughout from top to bottom.

The correct Plate Compactor for a Professional Finish with Natural Cast Stone Products?

For best results use a brick roller attachment on the plate compacter. The rubber rollers will protect the paving and give a professional finish. Alternatively a rubber mat or carpet can be attached to the base of the plate compacter to protect the surface finish of the paving during the compaction process. Direct use of a steel plate compacter can cause damage. Compacting equipment can be hired at all reputable plant hire companies.

Understanding the Importance of Paver Edging

When embarking on a paver project, selecting the right edging is not just a detail—it’s a cornerstone decision that ensures the beauty and integrity of your work. Here’s an overview of why edging is essential and what benefits it brings to your project.

The Role of Edging |

  • Containment | Edging secures the pavers, keeping them from shifting and spreading, thus maintaining the integrity of your design.
  • Stability | It fortifies the pavers, particularly at the edges, to prevent them from becoming uneven or dislodged.
  • Erosion Prevention | Edging acts as a barrier, safeguarding the soil around the paver area from erosion.
  • Aesthetic Enhancement | It provides a polished finish to your project, defining boundaries and elevating the visual appeal.

Advantages of Quality Edging |

  • Durability | It’s imperative to choose edging materials that can endure the elements and offer lasting support.
  • Ease of Installation | Many edging solutions are designed for straightforward installation, saving time and labour.
  • Design Flexibility | Edging comes in various styles to match any design vision, from classic to contemporary.
  • Simplified Maintenance | Proper edging keeps pavers in place, reducing weed growth and debris accumulation.

Functionality of Paver Edgings | Paver edgings serve by forming a perimeter barrier that prevents horizontal shifting of pavers, ensuring they remain compact. The installation of edging can be before or after laying the pavers, with some systems interlocking for added stability.

Selecting the Ideal Edging | The success and longevity of your paver project hinge on the right choice of edging. It’s crucial to consider the material, design, and functional requirements to ensure that your project stands the test of time.

Varieties of Edgings

Concrete Edging Blocks

Concrete edging blocks are a popular choice due to durability and versatility.

They come in various shapes, sizes, and colours to suit different design preferences.

Some are known as kerbs or kerbstones

Cast Concrete Edging

Cast concrete is strong and can be shaped to fit your design

Strong, long lasting, can be cast in place


Low or high walls are perfect edging structures

Plastic Edging

Plastic edging is lightweight, flexible, and easy to install.

Used to create straight lines and curves, available in different heights to accommodate various paver thicknesses.

Less suitable for heavy duty applications such as driveways

Must the edging be placed on the bedding layer?

Yes, this is the recommended way to place the edging on the bedding layer when installing paving Placing the edging on the bedding layer offers several benefits |

  1. Stability | By placing the edging on the bedding layer, you ensure that it’s well-supported and securely anchored in place. This enhances the stability of the entire edging system.
  2. Prevention of Movement | The bedding layer provides a solid foundation for the edging, reducing the likelihood of it shifting or becoming dislodged over time. This helps maintain the integrity of the paver installation.
  3. Uniformity | Placing the edging on the bedding layer helps maintain a consistent elevation around the perimeter of the paved area. It ensures that the pavers are properly contained and supported.
  4. Ease of Installation | By avoiding disturbance to the base or compacted soil beneath the bedding layer, the installation process becomes simpler.
  5. Effective Containment | Edging placed on the bedding layer creates a barrier that helps contain the pavers. It prevents them from spreading out or shifting, especially along the edges of the paved area.

Placing the edging on the bedding layer is a best practice that contributes to the stability, durability, and aesthetics of your paver project. It ensures effective containment and overall project success.

How far should the base extend beyond the paving?

The base extension beyond the paving is a critical aspect of any paver project. It ensures stability, durability, and proper load distribution.

Some general guidelines |

Minimum Overhang | The base should extend at least 15 to 30 cm beyond the outer edge of the paving.

Heavier Traffic Areas | For areas with heavy foot traffic or vehicular traffic, such as driveways or walkways, a minimum overhang of 30 cm or more may be necessary.

Slope Considerations | If the paved area is on a slope, the base should extend further beyond the paving to account for the increased pressure and potential for erosion. The exact extension needed will depend on the severity of the slope and the type of base material being used.

Climate Factors | In regions with freeze-thaw cycles or unstable soil conditions, a larger overhang may be required to mitigate the effects of frost heave or soil movement. Consult local building codes or a professional landscaper familiar with the area’s conditions for specific recommendations.

Edge Restraints | Regardless of the overhang distance, it’s essential to install proper edge restraints along the perimeter of the paved area to prevent the pavers from shifting or spreading out over time.

Remember that a well-designed base ensures the longevity of your paver installation. By following these guidelines, you’ll create a stable foundation capable of withstanding environmental factors and usage demands.

Do Copings around Pool need to be Sealed?

What is a coping?

A coping consists of a row of concrete or natural stone around the top edge of your pool which aligns with the paving or deck next to your pool.

What are copings made out of?

They are usually made of concrete, natural stone or tiles.

They have a bull-nose which is a smooth rounded edge to create an attractive and functional top edge of your pool.

Why the need to seal pool copings?

Sealing helps protect the coping from water damage, staining, and the effects of exposure to sunlight and pool chemicals.

It can also help prevent water from seeping into cracks and causing damage over time. Additionally, sealing the coping can enhance its appearance and prolong its lifespan.

Efflorescence is largely caused by water migration through concrete pavers. The coping is exposed to water as it is at the edge of the pool. Proper sealing is very important to ensure a long maintenance free life.

How to maintain copings?

To ensure a long service life keep the copings clean. Use a brush and a mild detergent.

Avoid harsh chemicals.

Do not use pool acid.

Inspect for holes and cracks and repair promptly.

When necessary, re-seal the copings to protect against chemicals and UV from the sun.

Which coping sealants are commonly used?

  1. Silicone sealant: Silicone sealants are flexible and offer excellent water resistance. They adhere well to a variety of materials and are suitable for both indoor and outdoor use. They are available in clear and coloured varieties.
  2. Polyurethane sealant: Polyurethane sealants are also flexible and durable, making them suitable for coping applications. They provide good adhesion and are resistant to water, weather, and pool chemicals.
  3. Acrylic sealant: Acrylic sealants are easy to apply and provide a protective barrier against water and UV rays. They are available in a range of colours and are suitable for coping made of materials like concrete and stone.
  4. Epoxy sealant: Epoxy sealants offer excellent adhesion and durability. They are resistant to water, chemicals, and abrasion, making them suitable for high-traffic areas like pool coping. Epoxy sealants are available in clear and coloured varieties.

Before applying any sealant

It’s essential to clean the coping thoroughly and ensure that the surface is dry and free of debris. Follow the manufacturer’s instructions for application and curing times to achieve the best results.

Ask a ZENZELE representative for advice on this topic when ordering your products.


Weeds Growing in Your Pavers?

Preventative measures for weed growth between the joints, spoiling the appearance of your Concrete Paving.

The options highlighting the pros and cons of each.

Polymeric sand |

A resin based paving joint mortar that acts as a weed inhibitor. Properly installed, Polymeric sand

hardens when exposed to water, creating a stable joint that inhibits weed growth.

Pros              Very effective against weed growth

Cons            Expensive

Gravel or Crushed Stone |

A layer of gravel or crushed stone below the pavers can serve as a barrier against weeds. This provides drainage and prevents weed seeds from germinating. However, this may not be as effective as other methods in blocking weed growth over time. This choice will also not prevent weed growth in the joints at the top of the pavers.

Pros              Inexpensive

Cons            Not always effective

Herbicide |

Before installing the pavers, you can apply a pre-emergent herbicide to the area to prevent weed seeds from germinating. However, this method may require re-application over time and may not be suitable for all environments.

A pre-emergent herbicide is designed to keep seeds from germinating or sprouting. These herbicides rely on timing of application to work correctly. For summer weeds, apply in early spring, for winter weeds, apply in early autumn. Different pre-emergent herbicides have different residual effects.

If weed growth occurs in the joints of the pavers, spraying with a herbicide from time to time can be effective.

Pros              Effective

Cons            Moderately expensive, effective for a reasonable period

Weed Mat Fabric Weed Barrier |

This barrier typefabric is commonly used as a weed barrier. It allows water to drain through while blocking the growth of weeds. Use a high-quality fabric with proper thickness to ensure durability. Additionally, proper installation techniques, such as overlapping seams and securing the barrier tightly to the ground, add to its effectiveness.

Pros              Effective, medium cost, prevents water pooling on pavers, reduces efflorescence

Cons            More expensive than plain plastic sheeting. Will not stop weeds growing in the joints on top of the paving.

Plastic Sheeting |

Construction plastic sheeting that prevents weed growth

Pros              Inexpensive, readily available

Cons            Causes water to pool under and on top of pavers, increases efflorescence

Will not stop weeds growing in the joints on top of the paving.


The following suppliers can provide you with information about their products to control weed growth.

Ask a ZENZELE representative for advice on this topic when ordering your products.


Problems with Concrete Pavers

Concrete Pavers may not be the ideal solution for your project

To enable you to take an informed decision you need to be aware that

installing concrete pavers can present several potential challenges

  • Uneven Base
  • Poor Drainage
  • Weed Growth
  • Incorrect Joint Sand
  • Lack of Edging
  • Improper Alignment
  • Frost Damage
  • Cracking
  • Colour Variation
  • Efflorescence
  • Maintenance

Uneven Base

If the base for the pavers is not properly levelled and compacted, it can lead to uneven settling and shifting of the pavers over time.

Poor Drainage

Inadequate drainage can result in water pooling on the surface of the pavers, leading to erosion of the base and potentially causing the pavers to shift or sink.

Weed Growth

Gaps between pavers can provide opportunities for weeds to grow. Without proper weed barriers or joint sand, weeds may become a recurring issue.

Incorrect Joint Sand

Using the wrong type or insufficient amount of joint sand can result in instability and movement of the pavers. Polymeric sand is often recommended for its ability to harden when exposed to water, providing better stability and weed prevention.

Lack of Edging

Without proper edging to contain the pavers, they may spread or shift over time, leading to an uneven surface.

Frost damage

In regions with freeze-thaw cycles, inadequate base preparation or poor drainage can result in frost damage, where the pavers are lifted by freezing water trapped beneath them.

Improper Alignment

Incorrect alignment during installation can result in crooked or misaligned pavers, detracting from the overall appearance of the paved area.


Concrete pavers can crack if they are subjected to excessive weight or if they are not properly supported by the base.

Colour Variation

Depending on the manufacturing process and materials used, there may be variations in colour between pavers, which can affect the overall aesthetic appeal of the paved area.


A common issue with concrete pavers, occurs when soluble salts and minerals migrate to the surface of the pavers and form a white, powdery residue. While efflorescence doesn’t typically affect the structural integrity of the pavers, it can detract from their appearance.

Maintenance Challenges

While concrete pavers are generally low maintenance, they may require periodic cleaning and resealing to maintain their appearance and durability.


To minimize these potential issues, it is essential to carefully plan and prepare the installation site, use quality materials, follow proper installation techniques, and consider factors such as drainage and climate conditions. Hiring a professional contractor with experience in concrete paver installation can also help ensure a successful outcome.

Which is Best | Bevel or Interlocking Pavers ?

When deciding on a paving project you need to be well informed as to what is best for your

unique project. Here we try to point out the differences so that you can make an informed decision.

Bevel Pavers

Appearance | Bevel pavers are rectangular and feature a clean and classic look. They have bevelled edges, providing a traditional aesthetic appearance.

Advantages |

  • Cost-Effective | Bevel pavers are more affordable than interlocking pavers because they are thinner, 50mm compared to 60 and 80mm for interlocking pavers making them a budget-friendly option.
  • Ease of Installation | Due to their straightforward design, bevel pavers are relatively easier to install. Ensure that joint lines are straight.
  • Versatility | They are versatile and can be used for various landscaping projects, including driveways, walkways, and patios. Many bevel pavers are available in different topping colours.

Disadvantages |

  • Lack of Interlocking System | Bevel pavers lack the interlocking mechanism found in interlocking pavers, which can make them slightly less stable over time.
  • Limited load bearing capacity | Being thinner they are not suitable for heavy vehicles

Installation | Bevel pavers are typically laid in a standard pattern using sand or gravel as a base. They are arranged in straight lines, and the joints between them are filled with dry jointing sand or polymeric sand.

Application | Bevel pavers are suitable for both residential and commercial applications, including driveways, walkways, patios, and pool decks. They are less suited to heavy duty applications for heavy vehicles and trucks

Budget Factors | Bevel pavers are generally more cost-effective than interlocking pavers, making them ideal for projects with budget constraints.

Problems | Bevel pavers are durable, they may experience some shifting or settling over time, especially if not properly installed or maintained. Additionally, weeds or grass may grow between the joints. This can be prevented by using weed mat during installation as well as herbicides from time to time. Polymeric sand can also reduce weed problems and movement after installation.

Interlocking Pavers

Appearance | Interlocking pavers feature a unique joint design with interlocking edges that create a strong movement restraining contact surface with adjoining pavers.

They come in various thicknesses typically 60mm and 80mm for extra load bearing.

Advantages |

  • Enhanced Stability | The interlocking mechanism provides superior stability and durability, making interlocking pavers ideal for high-traffic areas.
  • Easy Repair | Individual pavers can be easily replaced if damaged, without affecting the rest of the installation.

Disadvantages |

  • Higher Cost | Interlocking pavers are generally more expensive than bevel pavers due to their advanced design and added strength.

Installation | Interlocking pavers are installed using a sand or gravel base, with each paver locking into place with its neighbouring pavers. This interlocking mechanism creates a stable and durable surface.

Application | Interlocking pavers are suitable for a wide range of applications, including driveways, walkways, patios, entertainment areas, and commercial landscapes. They are especially well suited to steeply sloping sites and heavy traffic conditions.

Budget | Interlocking pavers are generally more expensive than bevel pavers, so they may not be suitable for projects with strict budget constraints. However, their durability and long-term benefits may justify the initial investment.

Problems | While interlocking pavers offer excellent durability and stability, improper installation or inadequate base preparation can lead to issues such as shifting, settling, or uneven surfaces. Additionally, weeds or moss may grow between the joints if not properly maintained.

As with bevel pavers, weeds or grass may grow between the joints. This can be prevented by using weed mat during installation as well as herbicides from time to time. Polymeric sand can also reduce weed problems and movement after installation.

What is “Black Efflorescence”?

Black Efflorescence |
Blackening or Darkening of concrete products.
What is “black efflorescence”?

In some rare area-specific cases, certain pavers become black or darker. This may occur within a time-frame of two to 18 months after installation. The blackening does not affect all the pavers on a site. In fact, one will see a patch of dark pavers surrounded by normal ones. This is usually a permanent condition and may happen to any concrete products (pay attention to discolouration on concrete bridges and building façades, for example).

Black efflorescence

The blackening products manufactured with concrete is random and not yet well understood by the concrete industry. The blackening is beyond the control of manufacturers and does not affect the pavers’ structural performance. At present, the theory is that the blackening of concrete has something to do with the specific soil conditions in an area. Evidence of this is that neighbouring sites installed with concrete products will generally also show blackening.

Discolouration or “differential curing” in especially larger products

An obvious variation in the colour of individual pavers, with a distinct light or dark-hued “frame” and a light or dark-hued “core” on the paver’s surface, might develop or be present when unpacking your pavers. This condition is called “differential curing”. One should be aware that the “curing” of concrete is not simply the evaporation of water – it is a chemical process that takes years. Therefore the “stains” will become less profound and almost invisible over time. Initially though, some might consider it unsightly.

Picture framing on concrete bedded flagstones

This phenomenon normally only comes to light a few days after installation has been completed and some flagstones are more prone to it than others. The common denominator is that joints were filled using a wet cement slurry grout.
Basically, what happens is that cement-contaminated water from the slurry grout is absorbed by the flagstones and carried through internal capillaries.

Evaporation then takes place, creating a “transport chain” within the body of the paver, with cement-laden water being absorbed from the underside and joint faces of the pavers, and evaporation from the upper surface, particularly from the edges of the pavers. Cement, however, does not evaporate; it cures and leaves a stain. This stain often resembles a picture frame around the flagstone.

We do not recommend using cement grouting, as cement staining is nearly impossible to prevent with this grouting method. We recommend using a resin bound mortar, like Romex, which is supplied by Cretesol. Unlike cement grouting, there is no chance of staining with this method. It is incredibly strong and long-lasting. Most importantly, Romex allows for a flexible joint between your pavers, unlike cement grouting – which eventually breaks and pops out.

Are ZENZELE pavers surfaces slippery.

ZENZELE Bevel and interlocking pavers are manufactured with a surface that is not slippery.

Natural cast stone pavers can be chosen with a smooth or a textured surface depending on the application.

Is the Product Sealed

No the product is not coated or sealed. All products are supplied in its’ raw concrete form and is therefore very porous, as is natural stone products. This means that the products will absorb any fluids, for example, oils, fats, water, mud, food colourants and beverages. This may lead to unsightly stains. In order to protect and maintain the product, it is recommended that you use a sealer, especially in entertainment areas, around a braai or stove, and around salt chlorinated pools. There is a vast range of products available on the market, each with varying effects, i.e. matt, gloss, colour enhancing, etc. We recommend that you speak to an expert to obtain the best results to meet your individual needs.

Keeping Paving Clean

Paving can be easily cared for by either broom sweeping or hosing with a water spray. DO NOT USE A HIGH PRESSURE SPRAYER, A STEEL BRUSH, ANY STRONG DETERGENTS OR ACID TO CLEAN. This may damage the surface and colour of the product.

When laying dry cast paving the gaps between the pavers should be filled with fine sand only. Do not use cement as this may discolour the surface of the pavers. Gap filling should be done when pavers are dry and with dry sand to enable the sand to flow into the gaps.

How to Colour & Protect Concrete Paving, with a Reactive Pigmented Coating

As a property owner, you may wonder how you can refresh the appearance of your concrete paving in good condition, but that has become dull or less attractive over the years.

Perhaps you have painted your house, but the existing paver colours do not match to your satisfaction.

You will be pleased to learn that there are solutions.

Here we discuss an option that you can consider addressing these concerns

Note This procedure can’t be used on previously sealed or painted concrete surfaces.


Concrete paving, while durable, can benefit greatly from colouring and protection with a reactive pigmented coating.

Not only does it enhance visual appeal, but it also prevents efflorescence, a common issue with concrete surfaces.

In this guide, we’ll delve into the process of colouring and protecting concrete paving using a reactive pigmented coating, ensuring both appearance and durability.

Choosing the Reactive Pigmented Coating

Use a reactive pigmented coating designed specifically for concrete surfaces.

Look for coatings that chemically react with the concrete to form a permanent bond, preventing efflorescence and enhancing durability.

Consider the colour options and finishes available, ensuring they complement your outdoor space.

1.    Surface Preparation

  • Prepare the concrete surface meticulously to ensure optimal adhesion and a flawless finish.
  • Clean the surface thoroughly to remove any dirt, oil, grease, or existing coatings.
  • A pressure washer may make your task easier to clean away all loose material.
  • Repair any cracks, spalling, or imperfections using suitable concrete repair materials.
  • Allow the concrete pavers to dry completely, including the joints.

2.    Applying the Reactive Pigmented Coating

  • One of the notable benefits of reactive pigmented coatings is their ease of application.
  • Follow the manufacturer’s instructions for mixing and applying the reactive pigmented coating.
  • Use a paint roller, sprayer, or brush to apply the coating evenly across the entire surface.
  • Work in manageable sections to ensure consistent coverage and avoid overlapping or uneven application.
  • Apply multiple coats as necessary to achieve the desired colour intensity and coverage.

3.      Sealing and Preventing Efflorescence

  • Using a quality reactive pigmented coating will seal your concrete at the same time.

4.    Maintenance and Care

  • Preserve the appearance and integrity of your pigmented-coated concrete paving through regular maintenance.
  • Regularly sweep or rinse the surface to remove debris and prevent staining.
  • Avoid using harsh chemicals or abrasive cleaners that could compromise the coating.
  • Periodically inspect the surface for signs of wear or damage and reapply as needed to maintain protection.

Benefits of Using a Reactive Pigmented Coating

Restores dull concrete paving to an appearance that will please: The pigmented coating revitalizes worn-out concrete, giving it a fresh and attractive look that enhances the overall aesthetics of your outdoor space.

Quick drying: With its rapid drying properties, the coating minimizes downtime, allowing you to resume regular use of the paved area sooner.

Easy to apply by brush or roller, clean with water: Application is hassle-free, whether you choose to use a brush or roller, and cleaning up is a breeze with simple water.

Bonds with the concrete improving wearing properties: The coating forms a strong bond with the concrete substrate, significantly improving its resistance to wear and tear, thus prolonging its lifespan.

Easy to keep clean, stain-resistant: Its smooth surface makes cleaning effortless, and the coating’s stain-resistant properties ensure that spills and stains can be easily wiped away without leaving permanent marks.

Resists water penetration and efflorescence: By preventing water penetration and efflorescence, the coating helps maintain the integrity of the concrete, reducing the risk of damage caused by moisture.

No dusting: Unlike untreated concrete surfaces, the coated pavement does not produce dust, providing a cleaner and healthier environment.

Available in attractive colours: Choose from a variety of attractive colours to complement your outdoor decor and create visually appealing spaces.

Better than paint that does not bond with concrete: Unlike traditional paint, which merely sits on the surface, the reactive pigmented coating forms a chemical bond with the concrete, ensuring long-lasting adhesion and superior performance over time.


Colouring and protecting your concrete paving with a reactive pigmented coating not only enhances its visual appeal but also prevents efflorescence and extends its lifespan.

With the added benefit of easy application, you can achieve professional-grade results with minimal effort.

Remember to select the right reactive pigmented coating, prepare the surface meticulously, apply the coating and sealer carefully, and perform regular maintenance to maximize longevity and performance.

We trust that the above information will help you to achieve the best result for your projects.

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