Study on mechanical properties and micro-mechanism of ceramic-slag-phosphorus solid waste solidified soil
ZHAO Jianbin
GAO Tao
XU Yujia
ZHANG Yannian
CHEN Mingyu
DANG Juchao
Abstract：To improve the utilization rate of solid waste,take ceramic powder,slag and phosphorus slag as raw materials by us-ing terpolymer solid waste to prepare cementitious materials for strengthening the silty soil.Firstly,the terpolymer solid waste ratio,aswell as the modulusand dosage of sodium silicate were determined by orthogonal test.On this basis,the influence of water con-tent,inorganic binder content and admixture on physical properties of solidified soil was studied.The XRD,SEM and EDS were used to analyze the mechanisms of solidified soil.The results show that the three-component curing agent based on ceramic powder can strengthen the silty soil.When the curing agent content is 16％,the proportion of inorganic binder(ceramic powder∶slag∶phosphorus slag=3∶2∶1),sodium silicate modulus was 1.0,sodium silicate content was 26％,water content was 30％,and triisopropanolamine content was 1.5％,the 28 d unconfined compressive strergth of solidified soil reached 4.953 MPa.Mainly generated C-S-H,C-A-S-H play a good role.
Keywords：ceramic powdersolidified soilorthogonal experimentunconfined compressive strengthmicroscopic analysis
Publication Date：2023-11-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 75-79,144 )