玻璃纤维在不同环境中的耐腐蚀性研究  

Study on anti-corrosion of glassfibre in different environments

作　　者：程从密[1] 张亚芳[1] 杨毅男 CHENG Cong-mi;ZHANG Ya-fang;YANG Yi-nan(School of Civil Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《广州大学学报（自然科学版）》2018年第6期26-29,F0003,共5页Journal of Guangzhou University:Natural Science Edition

摘　　要：文章研究了中碱玻璃纤维和高锆玻璃纤维在不同环境中的腐蚀.研究表明,80℃湿热养护条件下,无论是采用饱和Ca(OH)_2溶液模拟混凝土中的碱性环境,还是直接采用水泥砂浆滤液,中碱玻璃纤维和高锆玻璃纤维在其中的腐蚀程度都远小于在水泥砂浆中.表明采用模拟孔隙液的方法研究水泥基中的玻璃纤维腐蚀有很大的局限性.190℃蒸压养护环境下GRC中高锆玻璃纤维的腐蚀也远比直接暴露在高温水蒸汽中的高锆玻璃纤维腐蚀严重.各养护条件下,GRC中的高锆玻璃纤维腐蚀程度都低于中碱玻璃纤维.The corrosion of medium alkali glassfibre and high zirconium glassfibre in different environments is studied in this paper.The results show that the corrosion degree of medium alkali glassfibre and zirconium glassfibre in soaking solution is much less than that in mortar,whether the soaking solution is saturated Ca(OH)2 solution or the cement mortar filtrate under the condition of hydrothermal curing at 80℃.The results show that the method of simulating mortar pore fluid has limitations in the study of glassfibre corrosion in cement-based materials.The corrosion of zirconium glassfibre in GRC cured by autoclaving at 190℃is much more serious than that of zirconium glassfibre directly exposed to the same high temperature steam.Under different curing conditions,the corrosion degree of zirconium glassfibre in GRC is slighter than that in medium alkali glassfibre.

关 键 词：玻璃纤维 玻璃纤维增强水泥 腐蚀 湿热养护 蒸压养护 

分 类 号：TU528.572[建筑科学—建筑技术科学]