Foundation Slab Kit - 850kg Ballast and 6 x 25kg Cement Bags

This kit is intended for small structures like sheds or paths. For a driveway, you would typically require a thicker slab and steel reinforcement.

Please check with your local B&Q store regarding delivery capabilities, as bulk bag deliveries usually require specific vehicle access.

No, the 20mm all-in ballast already includes the necessary sand content required for a structural concrete mix.

While concrete is hard enough to walk on within 24-48 hours, it reaches its full structural strength after approximately 28 days.

If kept in a dry, covered area, cement should be used within 3-6 months of purchase to ensure optimal performance.

Cracking is often caused by the concrete drying too rapidly. Ensure the surface is covered or dampened during the initial curing phase.

Add water in small increments. If the mix becomes too runny, add a small amount of extra cement and ballast, but maintain the recommended ratio.

Use a straight-edge board (screed) across the formwork immediately after pouring to level the surface, then finish with a wooden float or steel trowel.