露石水泥混凝土路面耐久性的研究

摘要

Exposed-aggregate cement concrete pavement is a new road,the durability is the key issue of concrete pavement development.The article studies the durability of exposed-aggregate cement concrete pavement from carbon-ation resistance,salt freezing erosion,abrasion and so on.The results showed that:the carbonation depth of the ex-posed aggregate cement concrete pavement was larger than the ordinary cement concrete pavement,indicating its poor carbonation resistance;at the same time,the exposed-aggregate cement concrete pavement was poorer than the ordina-ry cement concrete pavement on frost resistance,salt erosion.But the abrasion resistance of exposed-aggregate cement concrete was much larger than the ordinary cement concrete pavement.%露石水泥混凝土路面是一种新型路面，混凝土的耐久性是影响混凝土路面发展的关键问题。论文从抗碳化性能、抗盐冻剥蚀、耐磨性等三个方面研究露石水泥混凝土路面的耐久性。研究结果表明：露石水泥混凝土路面的碳化深度要比普通水泥混凝土路面大，表明其抗碳化性能比普通水泥混凝土差；同时露石水泥混凝土的抗冻性、抗盐剥蚀也比普通水泥混凝土路面差；但是露石水泥混凝土的耐磨性要远大于普通水泥混凝土路面。