磷酸镁水泥净浆及CFRP切丝改性试验研究  

Experimental Research on Magnesium Phosphate Cement Paste and Modification for CFRP Chopped Strands

作　　者：陈妤[1] 李十泉[2] 陈蓓[1,2] 吴丽雅 蒋邵轩 葛佳龙 

机构地区：[1]江苏大学土木工程与力学学院,镇江212013 [2]南京理工大学泰州科技学院,225300 [3]泰州市同一建设工程质量检测有限公司,225300

出　　处：《混凝土与水泥制品》2015年第9期55-59,共5页China Concrete and Cement Products

基　　金：国家自然科学基金(51478209);江苏省青年科学基金(BK20140553);江苏大学高级专业人才科研启动基金(12JDG037);泰州市社会发展项目(SSF20150055);南京理工大学泰州科技学院创新创业训练计划项目(2015025)

摘　　要：介绍了磷酸镁水泥(MPC)的制备,研究了硼砂用量、水胶比(W/B)、镁磷比(M/P)、龄期、CFRP切丝的掺加量及长度对MPC净浆凝结时间、施工性能、强度的影响。结果表明,MPC具有明显的早强高强特性;CFRP切丝的添加率增加,试件抗折、抗压强度上升明显。当M/P=1.8,W/B=0.11,M:K:B=153:85:5时,试件强度达到52.5硅酸盐水泥的强度等级;当M/P=1.8,W/B=0.13,Vc=15‰时,试件强度达到62.5级硅酸盐水泥的强度等级。The preparation of the magnesium phosphate cement is introduced. The effects of the factors, such as the amount of borax, water-cement ratio, magnesium phosphorus ratio, age, mixing amount and length of CFRP chopped strands on the setting time, workability and the strength of MPC paste are studied. The results show that, MPC has the sig- nificant character of early-strong high-strength, with the increasing usage amount of CFRP strips, the bending and compressive strength of the specimen is increased significantly. When M：P is 1.8, W：B is 0.11, M：K：B is 153：85：5, the strength of specimen is equivalent the 52.5R Portland cement. When M：P is 1.8, W：B is 0.13, Vc is 15 %0, the strength of speci- men is equivalent the 62.5R Portland cement.

关 键 词：MPC 配合比 CFRP切丝 力学性能 

分 类 号：TU528[建筑科学—建筑技术科学]