摘要
Abstract
In order to study the effects of fly ash on the mechanical properties and chloride ion penetration resistance of concrete,this paper se-lected different mixtures of fly ash instead of cement to prepare concrete specimens,and tested their compressive strength,flexural strength and chloride ion penetration resistance at different ages.The results show that the optimum dosage of fly ash is 10%considering the mechanical properties and the resistance to chloride ion penetration.When the curing age is 90 days,the compressive strength and flexural strength of the concrete are increased by 1.22%and 3.13%respectively compared with ordinary concrete.When the curing age is 28 days,the total electric flux of the concrete decreases by 29.01%compared with that of ordinary concrete.In conclusion,proper incorporation of fly ash can improve the long-term strength and chloride penetration resistance of concrete,but it will weaken the strength in the early stage.关键词
粉煤灰/力学性能/抗氯离子渗透Key words
Fly ash/Mechanical properties/Resistance to chloride ion penetration分类
建筑与水利
