有机硅添加剂对GRC性能的影响研究  

Effect of organosilicon additive on GRC performance

作　　者：项斌峰 

机构地区：[1]中国建材检验认证集团北京天誉有限公司,北京101113

出　　处：《中国建材科技》2020年第6期70-72,共3页China Building Materials Science & Technology

基　　金：北京市通州区科技计划(KJ2019CX056)。

摘　　要：对有机硅添加剂对再生GRC材料性能的影响进行研究,通过测试再生GRC的抗弯强度、吸水率和抗冻融循环能力得出相应的影响规律,有机硅添加剂可以改善再生GRC的吸水性能和抗冻性能,对抗弯性能的影响较小,采用有机硅改性再生GRC的吸水率可以下降到6%以下,50次冻融循环后没有出现裂纹、剥落、起层等破坏现象。In this paper,the effect of organosilicon additive on the properties of recycled GRC is studied.By testing the bending strength,water absorption and freeze-thaw cycle resistance of regenerated GRC,the corresponding influence rules are obtained.Organosilicon additive can improve the water absorption and freeze-thaw resistance of regenerated GRC,and its influence on bending resistance is small.The water absorption of regenerated GRC modified by organosilicon can be reduced to less than 6%,and there is no crack,peeling,delamination and other damage phenomenon after 50 freeze-thaw cycles.

关 键 词：玻璃纤维增强水泥 再生骨料 有机硅 吸水率 抗冻性 

分 类 号：TU528.581[建筑科学—建筑技术科学]