MPS聚合物改性水泥公路混凝土的若干耐久性能的研究

Study on some durability properties of MPS polymer modified cement concrete road

针对普通路面混凝土易受冻融破坏，及化学腐蚀破坏和返修率高的缺点，拟研究用甲基丙烯酸甲酯（MMA）及适量酚醛树脂粉末双掺混入普通水泥路面混凝土中，利用聚合物改性的原理，改善混凝土相的结构特性，延长混凝土设计使用年限，降低维护费用．试验分析显示，当 P＝7.5％～10％之间时，能较好较经济地改善公路混凝土的结构特性．

according to the normal pavement concrete susceptible to freezing and thawing damage,and chemical corrosion failure and repair rate high shortcoming,proposed research with methyl meth-acrylate（MMA）and the amount of phenolic resin powder mixed with ordinary cement concrete pavement in double doped and modified by using the principle of polymers,structural characteris-tics of improvement of concrete,concrete design using extended life,reduce maintenance cost.The experimental analysis shows that,when P=7.5%~10%,the structural characteristics can be bet-ter than economic improvement of highway concrete.