摘要
Abstract
In this paper,the undisturbed mucky soil with high water content,low mechanical strength and poor mechanical properties was solid-ified by using industrial solid wastes such as phosphogypsum and waste concrete.The non-lateral compressive strength test was carried out to study the effect of soil stabilizer made up of cement,phosphogypsum and recycled micro-powder on the stabilization of undisturbed mucky soil.The results show that the strength of solidified soil can be improved by adding a certain amount of phosphogypsum and regenerated micro-pow-der on the basis of the basic content of cement,when the dosage exceeds a certain value,the strength of the solidified soil decreases with the increase of the admixture;The optimal ratio of curing agent for different curing ages is 10%cement,8%phosphogypsum,and 10%regenera-ted micro powder.The use of phosphogypsum regenerated micro powder synergistic solidification of silty soil can effectively enhance the ductili-ty and water stability of solidified soil.关键词
磷石膏/废弃混凝土再生微粉/淤泥质土/固化/无侧限抗压强度Key words
Phosphogypsum/Recycled micro powder of waste concrete/Muddy soil/Solidification/Unconfined compressive strength分类
土木建筑
