化工矿物与加工2025，Vol.54Issue(5)：34-41,8.DOI:10.16283/j.cnki.hgkwyjg.2025.05.005
基于锂渣-电石渣-矿渣的淤泥质土固化剂制备及其固化机理研究
Study on preparation and curing mechanism of mucky soil curing agent based on lithium slag-carbide slag-blast furnace slag
摘要
Abstract
In order to realize the comprehensive utilization of industrial solid waste and the efficient treatment of mucky soil,this paper used lithium slag,carbide slag and slag as raw materials to prepare mucky soil curing agent.By conducting the mixture design test,the influence of changes in the mass fraction of curing agent raw materials on the unconfined compressive strength of solidified soil was studied.The mathematical model was established,and the curing mechanism of curing agent was explored.The results show that the mass fraction of carbide slag has the grea-test influence on the unconfined compressive strength of solidified soil,and the alkali excitation effect is obvious.The full cubic polynomial model in the Scheffe mathematical model has the highest fitting degree and can better predict the unconfined compressive strength of solidified soil.The optimal ratio of curing agent after optimization is m(lithium slag)∶m(carbide slag)∶m(slag)=31∶15∶54.The predicted and measured unconfined compressive strength of solidified soil are 3 440.60 kPa and 3 446.51 kPa,respectively,and the deviation is only 0.17%.The structure of natural mucky soil is loose,a nd a large amount of white flocculent calcium silicate hydrate and needle-like ettringite are produced after adding curing agent.These hydrates cement the soil as a whole,which greatly improves the physical and mechanical properties of mucky soil.The research results can provide reference for the comprehensive utilization of industrial solid waste.关键词
锂渣/电石渣/矿渣/淤泥质土/混料设计/固化土/全三次函数模型Key words
lithium slag/carbide slag/blast furnace slag/mucky soil/mixture design/solidified soil/complete function cubic polynomial model分类
土木建筑引用本文复制引用
吴飞虎,何治良,陈文,唐春阳,赵沁媛,邱钦城,何禹洲,许光晖..基于锂渣-电石渣-矿渣的淤泥质土固化剂制备及其固化机理研究[J].化工矿物与加工,2025,54(5):34-41,8.基金项目
四川省自然科学基金青年基金项目(2024NSFSC0975). （2024NSFSC0975）
