Hemet soil contains fine alluvial deposits and active clays that expand when wet and shrink during dry heat, making an uncompacted dirt base the direct cause of sunken, broken concrete.
Data recorded by the USDA Web Soil Survey shows that the San Jacinto basin holds alluvial soils with high silt content. When winter rains drain through the valley, moisture gathers underneath unsealed concrete slabs. Untreated native dirt softens, allowing heavy vehicles to push concrete downward. As summer temperatures exceed 100 degrees, the soil loses that water and contracts, leaving voids that crack unreinforced pads.
To prevent subgrade movement from ruining driveways and patios, our crew excavates past topsoil and installs 4 inches of crushed rock base compacted with mechanical plates. Slabs are poured at 4 inches thick using 4000 PSI concrete mixed for desert climates and reinforced with rebar or welded wire grid. Terrence Boyd oversees every stage, and each finished job includes a written workmanship guarantee against defects in how it was built.