粉煤灰高性能混凝土二维碳化性能研究  

Study on 2D Carbonation Resistance of High Performance Concrete with Fly Ash

作　　者：邓国瑞 DENG Guorui(Tianjin Binhai Tourism Area Infrastructure Construction Co.,Ltd.,Tianjin 300450,China)

机构地区：[1]天津滨海旅游区基础设施建设有限公司

出　　处：《粉煤灰综合利用》2019年第6期65-67,共3页Fly Ash Comprehensive Utilization

摘　　要：通过粉煤灰高性能混凝土碳化深度值测试,系统研究了粉煤灰掺量、水胶比、养护龄期等对粉煤灰混凝土二维碳化深度的影响,同时对比分析了粉煤灰混凝土一维和二维碳化行为。研究表明:混凝土二维碳化深度值随着粉煤灰掺量的增加而增加;水胶比越大,混凝土的二维碳化深度值越大;混凝土养护龄期越长,粉煤灰混凝土的碳化深度值越小,碳化龄期为3d、120d时,养护龄期为28d的混凝土碳化深度分别是养护龄期为90d的1.64倍和1.17倍。Through the test of carbonation depth of fly ash high performance concrete,this paper systematically analyzed the influence from fly ash content,water binder ratio,maintenance age to 2D carbonation depth of fly ash concrete.At the main time,the paper also compared and analyzed the carbonization behavior of ID and 2D of fly ash concrete.The research shows that the carbonation degree of concrete is changes from fly ash content,which presented from that the higher the water binder ratio,the higher the carbonation degree of concrete.The longer the m aintenance age,the lower the carbonation degree of concrete.At the age at 3d and 12d,the carbonation degree of concrete of maintenance age at 28d is 1.64 times and 1.17 times of which at 90d..

关 键 词：粉煤灰 混凝土 二维碳化 

分 类 号：TU528[建筑科学—建筑技术科学]