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随着公路交通事业的日益发展 ,塑料薄膜在水泥混凝土路面施工中得到了应用。实践证明 ,由于塑料薄膜具有表面光滑、抗拉强度好 ,有一定弹性 ,不透水 ,价格便宜等特点 ,因此采用塑料薄膜包装法施工 ,可大大提高水泥混凝土路面施工质量。( 1)混凝土不再直接与基层接触 ,那种因水
With the development of highway transportation, plastic film has been applied in the construction of cement concrete pavement. Practice has proved that, due to the plastic film with a smooth surface, good tensile strength, a certain elasticity, impermeability, cheap and so on, so the use of plastic film packaging construction, can greatly enhance the quality of construction of cement concrete pavement. (1) Concrete is no longer in direct contact with the grassroots, the kind of water