不同强度等级混凝土对抗氯离子渗透性能的影响  

Effects of Different Strength Grades of Concrete on Resistance to Chloride Penetration

作　　者：苏富赟 邸泉深 白永昇 蔺周 SU Fu-yun;DI Quan-shen;BAI Yong-sheng;LIN Zhou(Gansu Civil Engineering Research Institute Co.Ltd.,Lanzhou 730020,China)

机构地区：[1]甘肃土木工程科学研究院有限公司,兰州730020

出　　处：《工程建设与设计》2021年第13期124-126,共3页Construction & Design for Engineering

摘　　要：以实际工程为背景,通过对2家商品混凝土公司留样试块的测试,研究不同强度等级的混凝土对抗氯离子渗透性能的影响。通过研究表明:随着混凝土强度等级的提高,胶凝材料用量的增加,抗氯离子渗透性能变差;混凝土不能单一地靠提高抗压强度来提高抗氯离子渗透性能;需要进一步研究胶凝材料不同矿物组成及不同化学成分对混凝土抗氯离子渗透性能的影响。Based on the actual project,the influence of different strength grades of concrete on chloride ion permeability was studied by testing two commercial concrete companies.The research shows that:with the improvement of concrete strength grade and the increase of cementitious material dosage,the chloride ion permeability resistance becomes worse;the concrete can not improve the chloride ion penetration resistance by improving the compressive strength alone;it is necessary to further study the influence of different mineral composition and chemical composition of cementitious materials on the chloride ion permeability resistance of concrete.

关 键 词：混凝土 强度等级 胶凝材料用量 抗氯离子渗透性能 

分 类 号：TU528[建筑科学—建筑技术科学]