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利用钢渣-水泥胶凝系统固化Cd污染土,通过室内试验,研究不同钢渣-水泥掺量、不同Cd~(2+)浓度以及养护龄期对固化土体的强度及变形的影响。结果表明:1固化土体的无侧限抗压强度随养护龄期的增加而增长,且在7~28 d之间强度增长迅速;2掺入钢渣-水泥后,固化土体的强度显著增长,并在掺量为30%时强度最大,变形较小;3 Cd~(2+)浓度对固化土体也有影响,当Cd~(2+)浓度为0.2%时,固化后土体的强度较之其他浓度大。
Solidification of Cd contaminated soil with steel slag cement cementing system was carried out to study the effects of different steel slag cement content, different Cd 2+ concentration and curing age on the strength and deformation of solidified soil. The results show that: 1 The unconfined compressive strength of cured soil increases with the increase of curing age, and the strength increases rapidly from 7 to 28 days. 2 The strength of cured soil increases significantly after the incorporation of steel slag-cement , And the strength is the largest when the dosage is 30%; the concentration of Cd2 + also affects the solidified soil. When the concentration of Cd2 + is 0.2%, the strength of soil after solidification Compared with other concentrations.