Studies on swell and shrink behavior Of expansive clays controlling Measures using geosynthetics and Admixtures

Abstract

newlineUndesirable ground movements caused by swelling and shrinkage newlineof expansive clays during winter and summer respectively pose a newlineserious threat to most of the civil engineering structures especially those newlineof imposing light to medium stresses over the underlying expansive newlineclays While the problem of swelling arises mainly from rise of newlinegroundwater table and percolation of rain water the shrinkage is induced newlineeven from moisture suction of nearby tree roots and conduction of heat newlinethrough foundation of boilers kiln and furnaces apart from the lowering newlineof water table during summer season newlineDespite the constant efforts of geotechnical engineers to control newlinethe swell shrink potential of expansive clays and to restore the existing newlineand proposed structure the volume change problem of expansive clays newlinehave not been completely engineered well Though swelling and newlineshrinkage problems always co exist considerable attention has been newlinegiven only to the former newline newline