Abstract
Since the movement of soil particles and aggregates in compaction practice is hindered by the interparticle forces, the non-plastic fine-grained soil mixture may not obtain sufficient compaction density. This study aims to propose a solution to deal with these problems mentioned above by interparticle force regulation making use of interfacial forces reduction surfactant. The influence of changes in interfacial forces on compaction density has been investigated attentively in the laboratory and in situ tests, associated with a variety of fine-grained materials content and compactive effort. As a result, the compaction density increased obviously with the reduction in the gas-liquid interfacial forces, and smaller and faster consolidation settlement was observed at compaction sites.
