脱硫石膏作为高性能混凝土掺合料的特征性能研究  

Study on the characteristic performance of desulphurization gypsum as high performance concrete admixture

作　　者：钱大行[1] 董现松 

机构地区：[1]洛阳理工学院土木工程系,河南洛阳471023 [2]洛阳金瑞商品混凝土搅拌站,河南洛阳471935

出　　处：《混凝土》2012年第12期78-80,共3页Concrete

基　　金：河南省科技厅科技攻关项目(102102310371)

摘　　要：通过对脱硫石膏形成的化学机理分析,不同品种脱硫石膏和天然石膏的化学组成、颗粒形态、胶凝材料的技术性能等方面的试验。结果证明了脱硫石膏中的CaO和SO3含量高而稳定,粒径分布和胶凝材料性能优于天然石膏,作为掺合料使用可降低混凝土生产成本、减轻对环境破坏的优点,具有一定的工程使用价值。Based on a chemical analysis of the formation of desulphurization gypsum, experiments have been done on the chemical composi- tion, shapes of particles and technicalities of gelled material of different varieties of desulphurization gypsum.It showed that CaO and SO3 in desul- phurization gypsum were higher in volume and more stable.Desulphurization gypsum was better than natural gypsum in its distribution of particle size and the performance of gelled material.Used as a concrete admixture, it could significantly reduce production costs and the harmful effects to the environment and could be applied in engineering.

关 键 词：脱硫石膏 掺合料 性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]