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A hybrid sensor for rapid assessment of sulfate-induced heaving in stabilized soils

详细技术说明

Expansive soils, also known as shrink-swell soils, are soils that exhibit large changes in volume, i.e., that swell and shrink, due to various factors, including moisture content, type and amount of c

*Abstract

Expansive soils, also known as shrink-swell soils, are soils that exhibit large changes in volume, i.e., that swell and shrink, due to various factors, including moisture content, type and amount of clay minerals, dry density, soil structure, confining pressure and climatic conditions. Both the swelling and the shrinkage of expansive soils can cause severe damage to civil engineering structures, such as pavement structures (e.g., roads, runways, etc.), buildings, embankments, etc. This damage incurs billions of dollars of structural repair and reconstruction work in the US each year. This technology, co-owned by CWRU and the Univesity of Texas at Arlington, provides effective and efficient methods, apparatuses, and systems for assessing soil for the potential of expansion, so that pre-emptive measures for mitigating this problem can be taken with respect to the soil prior to building such structures. A prototype sensor has been built and successfully demonstrated the ability to assess shear modulus and moisture content with time in both laboratory and field conditions.

国家/地区

美国