摘要
为确定石灰石粉掺量对透水混凝土性能的影响,对不同石灰石粉掺量的透水混凝土的透水系数、抗压强度、抗折强度和抗冻性能进行了试验研究,分析透水混凝土性能的变化规律。结果表明:当石灰石粉掺量低于10%时,透水混凝土的透水系数变化不大,抗压强度有一定的提高,抗折强度小幅降低,冻融后的混凝土质量损失率和抗压强度损失率相对较小;当石灰石粉掺量超过10%时,会对透水混凝土的性能造成较大的负面影响。因此,在实际的透水混凝土制备过程中,应控制石灰石粉掺量,以保证透水混凝土性能的稳定。
In order to determine the effect of limestone powder dosage on the properties of permeable concrete,this paper conducts experimental studies on the permeability coefficient,compressive strength,flexural strength,and frost resistance of permeable concrete with different limestone powder dosages,and analyzes the changes in the performance of permeable concrete.The results show that when the content of limestone powder is less than 10%,the permeability coefficient of permeable concrete does not change much,the compressive strength has a certain increase,the flexural strength slightly decreases,and the loss rate of concrete quality and compressive strength after freeze-thaw is relatively small;when the content of limestone powder exceeds 10%,it will have a significant negative impact on the performance of permeable concrete.Therefore,in the actual preparation process of permeable concrete,the amount of limestone powder should be controlled to ensure the stability of the performance of permeable concrete.
出处
《混凝土世界》
2023年第12期46-49,共4页
China Concrete
关键词
石灰石粉
透水混凝土
透水系数
力学性能
抗冻性能
Limestone powder
permeable concrete
permeability coefficient
mechanical properties
frost resistance
