Rigid Pavement of the Highway
Pavement concrete pavement or generally termed as rigid pavement, consisting of cement concrete slabs as a base layer and the bottom layer (cannot be found) above ground. In rigid pavement construction, concrete plates are often referred to as layers of foundation because it is possible that there is still a layer of concrete asphalt on top of which serves as a surface layer. Rigid concrete pavement with a high elastic modulus will distribute the load to the plane of the soil, which is large enough that the largest part of the pavement capacity is obtained from the concrete plate itself. This is in contrast to the bending pavement where pavement strength is obtained from the thickness of the lower layer, the foundation layer, and the surface layer. Since the most important thing is to know the capacity of the load-bearing structure, the most important factor in planning the thickness of the concrete pavement is the strength of the concrete itself. The varying strengths of the foundation and/or foundation have little effect on the structural capacity of the pavement. Undercoat layers when used under a concrete plate for some consideration, among other things to avoid pumping, drainage system controls, shrinkage controls that occur on the ground and to provide a working platform for construction work. By using a cbr testing guide you can measure the scale of water saturation on the road.
More specifically, the function of the lower layer is to provide a uniform, stable and permanent layer. Raise the price of the modulus of subgrade reaction (k), into a modulus of composite reaction. Reduce the possibility of cracks in concrete plates. Provide floor work for heavy equipment during construction. Avoids the occurrence of pumping, ie the discharge of fine grains of soil together with water in the joint area, cracks or on the edge of the pavement, due to deflection or vertical movement of the concrete plate due to traffic load, after the free water accumulates under the plate. The choice of using rigid pavement types compared to the long-known and more frequently used bending pavements is based on the advantages and disadvantages of each type of pavement. Types of concrete pavement. Based on the connection and reinforcement of rigid pavement concrete plate, cement concrete pavement can be classified into 3 types as follows; Ordinary cement concrete pavement with non-reinforcing joints for crack control. Concrete ordinary concrete pavement with connection with plate reinforcement for crack control. For the control of the crack is used wire mesh between the broadcast and its use is independent of the existence of dowel reinforcement.