Effect of Curing Stress on Compression Behavior of Cement-Treated Dredged Sediment

被引：23
|
作者：
He, Xingxing [1 ,2 ]
Chen, Yijun [1 ,3 ]
Wan, Yong [1 ,3 ]
Liu, Lei [1 ,3 ]
Xue, Qiang [1 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China
[4] IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF GEOMECHANICS | 2020年 / 20卷 / 11期
基金：
美国国家科学基金会; 中国国家自然科学基金;
关键词：
Dredged sediment; Cement-treated; Curing stress; Physical properties; Compression behavior; Yield stress; MECHANICAL-BEHAVIOR; PORTLAND-CEMENT; STRENGTH; CLAY; SOIL; HYDRATION;
D O I：
10.1061/(ASCE)GM.1943-5622.0001857
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The curing stress is an important parameter affecting the mechanical properties of the cement-treated soil. This paper presents the effects of curing stress on the compressive and physical properties of the cement-treated dredged sediment (CDS). The plasticity behavior of CDS is affected by both the cement content and curing stress, whereas the particle size of CDS is mainly influenced by the cement content. The curing stress can reduce the compressibility of CDS significantly and slightly change the compression behavior of the postyielding stage, which is related to the structural behavior of CDS in the compression process. Finally, the strength factor related to the curing stress and cement content was proposed to predict the strength of CDS. (C) 2020 American Society of Civil Engineers.
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页数：11
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