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The Essential Guide to Using Block Paving Sand Effectively

The Essential Guide to Using Block Paving Sand Effectively:  Block paving sand plays a crucial role in the durability and aesthetic appeal of paved areas like driveways, patios, and pathways. This essential material not only helps to secure the paving blocks in place but also contributes to the overall strength and longevity of the paved surface. In this guide, we’ll explore everything you need to know about block paving sand, including its types, benefits, application process, and maintenance tips.

What is Block Paving Sand?

Block paving sand, also known as jointing sand or kiln-dried sand, is a fine, dry sand used to fill the joints between paving blocks. This sand helps to lock the blocks together, providing stability and preventing movement. It also plays a role in preventing weed growth and reducing the infiltration of water, which can cause damage over time.

Types of Block Paving Sand

1. Kiln-Dried Sand

Kiln-dried sand is the most commonly used type of block paving sand. It is thoroughly dried in a kiln to remove moisture, making it ideal for filling the joints between paving blocks. The fine particles of kiln-dried sand easily fill small gaps and provide a stable, interlocking structure.

2. Polymeric Sand

Polymeric sand is a mixture of fine sand and special additives that form a binding agent when exposed to water. This type of sand hardens once it is wet, creating a solid joint that resists weed growth and erosion. Polymeric sand is particularly useful for areas with heavy traffic or where water drainage is a concern.

3. Jointing Sand

Jointing sand is similar to kiln-dried sand but may contain slightly larger particles. It is used to fill the joints between paving blocks, providing stability and reducing the likelihood of weed growth. Jointing sand is often used in conjunction with other types of sand for added durability.

Benefits of Using Block Paving Sand

1. Enhanced Stability

Block paving sand helps to lock the paving blocks in place, preventing them from shifting or becoming uneven over time. This stability is essential for maintaining a smooth and even surface, especially in areas with high foot or vehicle traffic.

2. Weed Prevention

Filling the joints between paving blocks with sand helps to prevent weed growth. The sand creates a barrier that makes it difficult for weeds to take root and grow, reducing the need for frequent weeding and maintenance.

3. Improved Drainage

Block paving sand improves the drainage of paved areas by allowing water to pass through the joints and into the ground below. This helps to prevent water pooling on the surface, which can lead to damage and erosion.

4. Extended Lifespan

By providing stability and preventing weed growth and water infiltration, block paving sand helps to extend the lifespan of your paved surfaces. Regularly replenishing the sand can keep your paving looking and functioning its best for years to come.

How to Apply Block Paving Sand


  1. Clean the Surface: Remove any dirt, debris, or existing weeds from the paved area. Use a broom, pressure washer, or garden hose to clean the surface thoroughly.
  2. Dry the Paving: Ensure the paving is completely dry before applying the sand. Wet surfaces can cause the sand to clump and prevent it from filling the joints effectively2: Applying Kiln-Dried Sand
  1. Pour the Sand: Open the bag of kiln-dried sand and pour it over the surface of the paving. Use enough sand to cover the entire area.
  2. Sweep the Sand: Use a broom to sweep the sand into the joints between the paving blocks. Make sure the sand fills the joints completely, adding more sand as needed.
  3. Compact the Sand: Once the joints are filled, use a compactor or a hand tamper to compact the sand. This helps to lock the paving blocks in place and ensures a stable surface.
  4. Reapply if Necessary: After compacting, check the joints again and add more sand if needed. Repeat the sweeping and compacting process until all joints are fully filled and compacted.

Applying Polymeric Sand

  1. Pour the Sand: Pour the polymeric sand over the dry, clean surface of the paving.
  2. Sweep the Sand: Sweep the sand into the joints, ensuring they are completely filled.
  3. Remove Excess Sand: Use a leaf blower or broom to remove any excess sand from the surface of the paving blocks. Be careful not to disturb the sand in the joints.
  4. Activate the Sand: Use a garden hose with a fine spray nozzle to lightly mist the surface with water. This activates the binding agents in the polymeric sand, causing it to harden. Avoid over-wetting, as this can wash away the sand.
  5. Let it Set: Allow the sand to set and harden according to the manufacturer’s instructions before using the area.

Maintenance Tips for Block Paving Sand

1. Regular Inspection

Inspect your paved surfaces regularly to check for signs of shifting blocks, weed growth, or sand loss. Address any issues promptly to maintain the stability and appearance of your paving.

2. Replenish Sand

Over time, the sand between paving blocks can wash away or become compacted. Replenish the sand as needed to keep the joints filled and stable. This is especially important after heavy rain or pressure washing.

3. Weed Control

While block paving sand helps to prevent weed growth, it’s still important to monitor for any weeds that may appear. Remove weeds promptly and consider using a weed killer designed for paved areas if necessary.

4. Proper Cleaning

When cleaning your paved surfaces, avoid using high-pressure water jets directly on the joints, as this can dislodge the sand. Instead, use a gentle hose spray or a broom to clean the surface.

5. Protect Against Erosion

Ensure that the surrounding landscape directs water away from your paved areas to prevent erosion of the sand. Consider installing drainage solutions if water pooling is an issue.


The Essential Guide to Using Block Paving Sand Effectively,

Block paving sand is an essential component for maintaining the stability, appearance, and longevity of your paved surfaces. By choosing the right type of sand and applying it correctly, you can ensure that your paving remains in excellent condition for years to come. Regular maintenance, including replenishing the sand and controlling weeds, will help to keep your paved areas looking their best.

For professional advice and service, consider contacting VIV Construct Group. Our experienced team can help you with all your block paving needs, ensuring a high-quality finish and lasting durability. For a quote, contact VIV Construct Group today.