Abstract
The use of polymer emulsion for soil stabilization has been used to improve the engineering properties of natural soils. This study investigated the feasibility of using styrene-butadiene (SB) emulsion, acrylic copolymer and blending of SB and acrylic copolymer (SB/acrylic) to improve the properties of concrete-stabilized soil. The influence of polymer content and blending ratio on the unconfined compression strength (UCS), indirect tensile strength (ITS) and water permeability of concrete-stabilized soil were investigated. The results reveal that the addition of SB, acrylic copolymer and SB/acrylic change the behavior of the concrete-stabilized soil from brittle to ductile behavior. The UCS and ITS of concrete-stabilized soil decrease with increasing polymer content due to the high water content of polymer emulsion in the mixture. The increase in acrylic ratio in SB/acrylic blend results in a decrease in UCS, ITS and toughness of concrete-stabilized soil. The purposed mixture holds promising application value in sustainability road construction.
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