Foundation type and features at a particular lot are chosen on the basis of soil characteristics. The higher the clay content, the stronger and stiffer the foundations have to be. Slab-on-grade ...

If you live in a slab-on-grade, SOG, home or work in a similarly constructed commercial building, the air you breathe every day might well compare to what came out of that underground critter ...

Each year, billions of dollars in damage to building foundations and structures is caused by shrinking and swelling behavior caused by clay soil. In fact, expansive clay soil is the most predominant ...

Clay soils have a water-holding capacity of about 1.35-2.5 in. of water per foot of soil, whereas well-drained sandy soils hold far less, typically 0.4-1.25 in. of water per foot of soil.