The primary functions of a patio base include facilitating underground drainage and supporting the surface material so it doesn t sink.
Pea gravel concrete base.
You may just need to dig out and tamp down the area and add 2 to 3 inches of pea gravel over landscape fabric.
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.
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The depth of it the gravel base.
The small size of pea gravel rocks prevents large air pockets which reduces the possibility of frost heave damage.
The directions below will guide you through creating a pea gravel patio with a base layer.
Gravel is especially important in clay soil because it doesn t.
What type of gravel under concrete slab.
A 4 to 6 inch layer of compacted pea gravel can support a patio surface under normal wear and tear.