Asphalt concrete and Portland cement concrete are commonly used as pavement materials nowadays.But the use of these types of concrete in tunnels is restricted.As a kind of new pavement material,polymer cement material is a kind of cement concrete which is reinforced and modified by polymer.It has low elastic modulus,high toughness, good workability and durability.Therefore,it is very suitable for the construction of pavement in tunnels of express highways.%沥青混凝土和水泥混凝土是目前广泛应用的两种路面材料，但在公路隧道内特殊的环境和使用条件下，其应用受到限制。聚合物改性水泥基材料是一种利用聚合物对水泥混凝土等进行增强改性的新型路面材料，具有低弹性模量、高韧性、良好的工作性和优良的耐久性，特别适用于公路隧道路面建设发展的需要。
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