粉煤灰对混凝土耐久性影响的试验研究

为了深入研究粉煤灰对混凝土耐久性的影响,分别进行了不掺粉煤灰混凝土和掺量分别为20%、40%、60%和80%的粉煤灰混凝土的抗压强度、干缩、抗硫酸盐侵蚀等系列对比试验研究。结果表明:粉煤灰对混凝土的抗压强度、干缩变形、抗硫酸盐侵蚀性均有不同程度的影响,粉煤灰能够大大地提高混凝土的耐久性性能。

Influence of Fly Ash on The Durability of concrete

In order to study the influence of fly ash to the durability of concrete,the experimental researches are made for the compressive strength,shrinkage,permeability and the resistance to sulfate of the fly ash concrete with the admixture percentage of 0%,20%,40%,60% and 80%.The results show that the fly ash would influence the compressive strength,shrinkage and the resistance to sulfate of concrete with different degrees,at the same time,the fly ash could significantly improve the durability performance of concrete.