One potential problem that can cause years of aggravation and cost tens of thousands of dollars to remediate is high plasticity clay. The damage manifests itself by sloping floors, sticking windows and doors, and cracking in drywall finishes.

High plasticity clays have microscopic mineral grains that are especially attractive to water. While the clay generally can take on a tremendous amount of water and still maintain its strength, its volume will expand. It only takes one bad event like a broken water line or a large spill to wet the subgrade and begin the swelling process. Little can be done except to prevent new water from infiltrating the subgrade and then waiting to repair the damage, which can be costly. Once the swelling begins, it can continue for years.

Concrete floors and foundations can lift or sink from either the pressures developed by the swell or from when the clay dries and begins to shrink. Depending on the changes in moisture content, the amount of shrinking and swelling can be from a ½ inch to 3 inches during the lifetime of a home.

Some solutions to protect the subgrade from moisture content changes and to prevent swelling and shrinking include: using a plastic liner between the concrete and soil around the home, extending rain gutter downspouts away from the foundation, and avoiding irrigation near the home. Before construction, engineers recommend removing three to five feet of the fat clay soil and replacing it with either low plasticity clay or a dirty sand that is not sensitive to changes in volume.

岩土雷竞技的电竞比分网工程师可以帮助您识别脂肪粘土土壤并提供具体的建议。有关我们的工程师如何帮助您的土壤问题的更多信息，请联系WES Dickhut。