激发作用下锰矿渣掺合料对混凝土性能的影响  

Effects of Manganese Slag on the Performance of Concrete Under Accelerative Reaction

作　　者：郜志海[1,2] 韩静云[1] 宋旭艳[1] 王中良[3] 

机构地区：[1]苏州科技学院土木工程学院,215011 [2]苏州大学材料与化学化工学部,215021 [3]苏州混凝土水泥制品研究院检测中心,215004

出　　处：《混凝土与水泥制品》2009年第6期16-19,共4页China Concrete and Cement Products

基　　金：国家"十一五"科技支撑计划合作项目(Z1201);苏州市建设局科研基金资助项目(Z938)

摘　　要：以锰矿渣为掺合料替代30%水泥配制混凝土,并与基准混凝土和掺加矿渣微粉的混凝土进行了性能对比。试验结果表明,锰矿渣可以改善混凝土的工作性能;锰矿渣混凝土的早期抗压、抗折强度较低,但后期强度发展较明显;锰矿渣混凝土的抗冻、抗渗、收缩等长期耐久性能较基准混凝土稍差。加入某激发剂(代号JS)后的锰矿渣混凝土早期抗压强度和抗折强度接近基准混凝土,且可使锰矿渣混凝土的抗冻、抗渗、收缩等长期耐久性能大大提升(略好于基准混凝土)。Concrete with addition of manganese slag for substitusion of 30% cement has been prepared and which performances are compared with mormal concrete and concrete with adding slag powder. The rezutts show that the manganese slag can improve the workability of concrete, and the early flexural and compressive strength of concrete with manganese slag appears in lower, but in later period the strength can be obviously increased. For the longterm＇s performances of concrete with mangarese slag, such as frost-resistance, impermeability and shrinkage etc., may be weaker than that of mormal concrete. After activator JS is introduced to this concrete, the early flexural and compressive strength can approach to that of normal concrete. Activator JS may improve the durability of concrete, comsisting of frost-resistance, impermeability and shrinkage etc., and which even can slightly higher than normal concrete.

关 键 词：锰矿渣 激发剂 混凝土 工作性能 力学性能 耐久性能 

分 类 号：TU528.042[建筑科学—建筑技术科学] TQ172.717[化学工程—水泥工业]