to hold water uniformly over the slab. For straw and hay, thickness should be at least six inches and kept wet throughout the curing period to prevent concrete drying and to avoid the danger of fire.

This vibrates the wet concrete and helps it settle in place ... It takes about 4 weeks for a new slab to fully cure. After 28 days, it’s time to apply a protective concrete sealer.

"When the pervious concrete is wet the 'paste' sticks together ... result in raveling on the top or the edges of the slab. Plus, improper curing will prevent the pervious concrete from reaching ...