文献类型：期刊文献

英文题名：Laboratory characterization of soft clay mixed with EPS, lime, fly ash, and sodium silicate

作者：Jiang, Ping[1,2];Zheng, Wenqian[1,2];Zhou, Lin[1,2];Li, Na[1,2];Wang, Wei[1,2]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Shaoxing Key Lab Interact Soft Soil Fdn & Bldg Str, Shaoxing 312000, Peoples R China

年份：2023

卷号：82

期号：8

外文期刊名：BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT

收录：SCI-EXPANDED(收录号：WOS:001031019500004)、、EI(收录号：20232814394085)、Scopus(收录号：2-s2.0-85164299351)、WOS

基金：The authors are grateful for the constructive suggestions from editors and reviewers and Zhejiang Provincial Natural Science Foundation of China (grant number [LQ20E080005]).

语种：英文

外文关键词：EPS light soil; Sodium silicate; Unconfined compressive strength; Modulus of elasticity; Stress-strain relationship

外文摘要：The influence of expanded polystyrene foam (EPS) and sodium silicate content on the density and mechanical properties of soft clay mixed with EPS, lime, fly ash, and sodium silicate is investigated in this study using unconfined compressive strength (UCS), cyclic load (CL), and scanning electron microscope (SEM) tests. It was found that EPS can efficiently decrease the density of mixed soil, whereas sodium silicate has no influence on the density. The UCS, elastic modulus, resilient modulus, and maximum dynamic stress first increased and then decreased with increasing sodium silicate content and decreased with increasing EPS content. When the sodium silicate and EPS contents were 6% and in the range 0.5 to 1%, respectively, the density of the mixed soil could be reduced efficiently, and the mechanical properties could be maintained. Based on this, an EPS content of 0.5 to 1% and a sodium silicate content of 6% can be considered optimal. Subsequently, an empirical model between the UCS, EPS content, and silicate content is proposed, which can provide theoretical support for mixed soil engineering applications.