To cement between slabs, you can use a dry mixture of kiln-dried sand and cement, applied and compressed into the joints.
Cementing or "pointing" between paving slabs helps stabilize them, prevents weed growth, and gives a finished look. One common method involves using a dry mix.
Preparing the Dry Cement Mix
Based on the provided reference, the process begins with creating the cement mixture.
- Mix Ratio: Combine one part kiln-dried sand with one part cement.
- Preparation: Ensure you use a clean bucket for mixing. Thoroughly blend the sand and cement together while they are dry. Kiln-dried sand is recommended as it is very fine and free-flowing, making it easy to work with in a dry mix.
Applying the Dry Mix to Joints
Once the mix is ready, the next step is to get it into the gaps between your slabs.
- Gently sprinkle the dry mixture directly along the joints between the slabs.
- Use a soft brush to carefully brush the mixture into the gaps, ensuring it fills them as much as possible.
Compressing and Finishing
Compacting the mix is crucial for a strong bond and a neat finish.
- Utilize a pointing trowel to compress the dry mix firmly down into the joints. This action helps to pack the material tightly, reducing voids and creating a denser fill.
- Add more of the dry mixture to the joints as needed during the compression process.
- Continue adding mix and compressing with the trowel until all the joints are completely full and packed tight.
This dry mix method is particularly effective when using kiln-dried sand, as its fine, dry nature allows it to settle deeply into the joints before being compacted. Moisture from the environment or future rainfall will then activate the cement, causing it to set and harden the joints.
Key Steps Summary
- Mix one part kiln dried sand with one part cement in a clean bucket.
- Gently sprinkle the mix along the joints.
- Brush the mix into the joints using a soft brush.
- Use a pointing trowel to compress the joints.
- Add more mix and compress until joints are full.
Using this dry method provides a straightforward way to achieve well-filled and secure joints between your paving slabs.
