Effects of Mineral Admixtures on Carbonation and Chloride Ingress of Concrete

被引：3
|
作者：
Haibier, Abuduhelili [1 ]
Wu, Yongxin [1 ]
机构：
[1] Tianjin Univ, Hydraul Simulat & Safety State Key Lab, Tianjin 300072, Peoples R China
来源：
ADVANCES IN HYDROLOGY AND HYDRAULIC ENGINEERING, PTS 1 AND 2 | 2012年 / 212-213卷
关键词：
Concrete carbonation; Effects; Chloride ingress; Fly ash; Slag; SUPPLEMENTARY CEMENTING MATERIALS; FLY-ASH CONCRETE; ASTM C1202; ACCELERATED CARBONATION; PERMEABILITY; CONDUCTIVITY; T277;
D O I：
10.4028/www.scientific.net/AMM.212-213.878
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Reinforcement corrosion is one important factor affecting the durability and safety of reinforced concrete structures. Concrete carbonation and chloride ion penetration is the main cause leading to steel corrosion, also important indicators affecting the service life of concrete structures. An accelerated carbonation experiment and Chloride penetration experiment was carried out on ordinary Portland cement (OPC) concrete and admixture concrete in various conditions. Eight concrete specimens of different mixture properties were tested in experiment. Resistance of OPC concrete system with and without mineral admixture (fly ash, slag) and air-entraining agent against carbonation was investigated. Besides, the influence of mineral admixture on the chloride penetration was also studied. The carbonation process and the factors affecting concrete carbonation are discussed according to test results. The test results were presented and they were in good agreement with the results of previous research.
引用
收藏
页码：878 / 882
页数：5
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