微硅粉制备充填胶凝材料研究现状  

Research status of preparation of filling cementitiousmaterials by micro-silicon powder

作　　者：刘增 孙伟[1] 张攀科 张盛友 樊锴 姜明归 LIU Zeng;SUN Wei;ZHANG Panke;ZHANG Shengyou;FAN Kai;JIANG Minggui(Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;Yunnan Key Laboratory of China-Germany Blue Mine and Special Underground Space Development and Utilization,Kunming Yunnan 650093,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]云南省中-德蓝色矿山与特殊地下空间开发利用重点实验室,云南昆明650093

出　　处：《化工矿物与加工》2024年第8期40-50,共11页Industrial Minerals & Processing

基　　金：国家自然科学基金项目(51964023);云南省重大科技项目(202202AG050014);云南省基础研究计划项目(202101BE070001-038,202201AT070146)。

摘　　要：微硅粉是硅钢工业产生的废弃物之一,主要成分为二氧化硅,有较高的潜在胶凝活性。本文对微硅粉的理化性质、微硅粉改性、胶凝活性激发、工程应用等进行了综述。微硅粉作为添加剂广泛应用于混凝土工程中,其产生的C-S-H凝胶能显著改善混凝土的各项性能。使用微硅粉制备对重金属离子具有较强吸附能力的新型充填胶凝材料是微硅粉资源化利用的一条新途径。Micro-silica powder is one of the wastes produced in the silicon steel industry,mainly composed of silicon dioxide,with high potential cementitious activity.In this paper,the physical and chemical properties,modification,activation of cementitious activity and engineering application of micro-silica powder are reviewed.As an additive,micro-silica powder is widely used in concrete engineering,and C-S-H gel produced by micro-silica powder can significantly improve the properties of concrete.The use of micro-silica powder to prepare new filling cementitious materials with good adsorption capacity for heavy metal ions is a new way for the resource utilization of micro-silica powder.

关 键 词：微硅粉 胶凝材料 活性激发 改性 提纯 

分 类 号：TU528[建筑科学—建筑技术科学]