Pea Gravel Concrete Base

A 4 to 6 inch layer of compacted pea gravel can support a patio surface under normal wear and tear.

Pea gravel concrete base.

Whether you pour concrete for a walkway or patio a strong gravel base is required to prevent the concrete from cracking and shifting. Both products are suitable for use as a drainage base for a concrete slab. A layer of gravel placed between the soil and the concrete slab prevents damage from shifting and heaving and increases the weight bearing capacity of the driveway. However a base layer is still a good idea for hard soil since it ll give the patio more structure support and allow for better drainage.

Concrete for a 15 foot square slab how to lay a gravel shed foundation water leak under a concrete slab building a greenhouse foundation gravel vs concrete shed base which is concrete for a 15 foot square slab. Quikrete all purpose gravel is nominally 3 8 minus aggregate so it is smaller than the gravel. The directions below will guide you through creating a pea gravel patio with a base layer. The small size of pea gravel rocks prevents large air pockets which reduces the possibility of frost heave damage.

What type of gravel under concrete slab. You may just need to dig out and tamp down the area and add 2 to 3 inches of pea gravel over landscape fabric. Gravel is especially important in clay soil because it doesn t.