粗合成纤维表面处理对水泥砂浆强度的影响  

Influence of surface treatment of synthetic macro-fiber on strength of cement mortar

作　　者：邢明亮[1] 李永鹏[1] 何锐[2] 嵇绍华[2] 陈拴发[1] 

机构地区：[1]长安大学交通铺面材料教育部工程研究中心,陕西西安710061 [2]长安大学公路学院,陕西西安710064

出　　处：《广西大学学报（自然科学版）》2013年第4期1003-1008,共6页Journal of Guangxi University（Natural Science Edition）

基　　金："十二五"国家科技支撑计划项目(2011BAE27B04)

摘　　要：为研究聚丙烯粗合成纤维表面处理对水泥砂浆强度的影响,利用强碱和硅烷偶联剂对聚丙烯粗合成纤维进行处理,通过纤维拔出试验、纤维砂浆强度试验和SEM微观分析,研究了纤维表面处理对水泥砂浆强度的影响。研究结果表明,经过强碱或硅烷偶联剂溶液处理后可明显改善纤维/基体界面的粘结性能,提高水泥砂浆的抗压强度和抗折强度,其中用碱溶液处理纤维的改性效果较佳。In order to study the impact of surface treatment of polypropylene synthetic macro-fiber on cement mortar strength, the polypropylene synthetic macro-fiber was treated with alkali and silane coupling agent. The effect of surface treatment of fiber on cement mortar strength was analyzed by the fiber pull test, fiber mortar mechanical test and SEM microscopic analysis. The results showed that the fiber/matrix interfacial bonding properties and strength of cement mortar were improved. The effect of fibers treated with alkali was good.

关 键 词：粗合成纤维 水泥砂浆 强碱 硅烷偶联剂 表面处理 强度 

分 类 号：TU528.57[建筑科学—建筑技术科学]