Research on Phosphorus Slag Powder Used as Admizture in Hydraulic Concrete

摘要：

Chemical composition, microstructure and morphology performance of phosphorus slag powder, as well as the effects of phosphorus slag powder and fly ash as admixtures on hydration heat and strength of cementitious materials, and mechanics, thermology, deformation and durability performances of hydraulic concrete were completely researched and analyzed. The results show that, phosphorus slag powder can reduce hydration heat of cementitious materials and adiabatic temperature rise of concrete obviously, which is benefical to the construction, temperature control and anti-crack of mass concrete; compared with concrete mixed with fly ash, concrete mixed with phosphorus slag powder has a equal strength in early age, higher strength grow rate in later age, and higher ultimate tension, dry shrinkage and autogenous volume deformation; phosphorus slag powder has no adverse effect on the performance of impermeability and frost resistance of concrete. Phosphorus slag powder can replace fly ash partially or completely for wide application in concrete, and bring out remarkable economic and environmental benefits.

关键词： phosphorus slag powder fly ash cementitious hydration heat hydraulic concrete

作者: LIN Yuqiang LI Jiazheng YANG Huaquan YANG Huamei

作者单位: Changjiang River Scientific Research Institute,Research Center of Water Engineering Safety and Disas Changjiang River Scientific Research Institute,Research Center of Water Engineering Safety and Disas

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 2088-2093

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）