磷渣粉替代粉煤灰在水工混凝土中的应用研究

对磷渣粉的化学成分、微观结构和形貌特征，以及磷渣粉和粉煤灰作为掺和料对胶凝材料及水工混凝土性能影响进行了试验研究。结果表明：掺磷渣粉的混凝土绝热温升显著降低，混凝土拌和物有一定程度的缓凝，有利于大体积混凝土的施工、温控和防裂；磷渣粉可提高混凝土后期强度增长率和极限拉伸值，对混凝土的抗渗、抗冻性能无不利影响；磷渣粉可部分或全部替代粉煤灰在水工混凝土中大量应用。

Research on Phosphorus Slag Powder Replacing Fly Ash in Hydraulic Concrete

Chemical composition,microstructure and morphologic feature of phosphorus slag powder,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 adiabatic temperature rise of concrete,which is beneficial to the construction,temperature control and anti-crack of mass...