连续配筋混凝土路面(CRCP)罩面层性能研究

Research on the Behavior of Concrete Overlays on CRCP

在沥青混合料(AC)+连续配筋混凝土(CRCP)复合式路面中,罩面层沥青混合料应具备较好的密实度、稳定性和耐久性,较好的低温抗裂性能和力学性能(强度和变形性能)以及较小的渗水系数。为了得到一种性能优良、更符合实际工程需要的沥青混合料,文章通过一系列室内试验,比较了2种级配沥青混合料的各种路用性能及与水泥混凝土板的粘结性能。

In the AC＋CRCP composite pavements, the concrete overlays should have good density, stability, durability, low temperature crack resistance, mechanics performance including intensity and deformation performance, and little permeate coefficient. In order to get a excellent kind of asphalt mixture, which would accord with the project practice better, two kinds of gradation asphalt mixture was designed by the Marshell method. Various pavement performances and fehed performance with the cement concrete slab of the asphalt mixture were studied by a series of indoor experiments.