Advantages and disadvantages of asphalt concrete pavement and cement concrete pavement

First, the advantages and disadvantages of asphalt concrete pavement

1, advantages: the asphalt concrete pavement is relatively flat, with high driving comfort and convenient maintenance; It has high compressive strength, high bending strength and wear resistance.

2. Disadvantages: The asphalt concrete pavement has the disadvantages of aging and poor water resistance.

Second, the advantages and disadvantages of cement concrete pavement

Advantages: Cement concrete pavement has the advantages of high strength, good stability, good durability and good skid resistance.

2. Disadvantages: Cement concrete pavement has many shortcomings, such as too many joints, late opening to traffic, and difficult maintenance.

Extended data

The basic function of cement concrete pavement is to prevent or reduce diseases such as slab bottom void and platform dislocation caused by pumping mud. Control or reduce the adverse effect of uneven frost heave or volume deformation of subgrade on concrete surface together with cushion; Provide a stable and solid foundation for the concrete surface layer and improve the load transfer capacity of the joint.

Selection principle of cement concrete pavement base material: Select base material according to road traffic grade and subgrade anti-scouring ability. Lean concrete, roller compacted concrete or asphalt concrete should be selected for overweight traffic; Cement stabilized granular materials or asphalt stabilized macadam should be selected for heavy traffic roads; Cement or lime-fly ash stabilized granular materials or graded granular materials should be selected for medium and light traffic roads. In wet and rainy areas, the drainage base should be used in busy road sections.

Baidu encyclopedia-asphalt concrete pavement

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