Which road surface is most prone to skidding?
1 Answers
Road surfaces that have just started to get wet from rain are most prone to skidding. Below is extended information about road surface classifications: 1. Rigid pavement: Under traffic loads, it can produce slab action with high flexural strength and very small deflection deformation, exhibiting significant rigidity. Its failure depends on the ultimate flexural strength. The main representative of rigid pavement is cement concrete pavement, including cement concrete pavements with dowel bars at joints, without dowel bars, and with reinforced steel mesh. 2. Flexible pavement: It undergoes relatively large deflection deformation under load with low flexural strength, and accumulates deformation under repeated loads. Its failure depends on the ultimate vertical deformation and flexural strain. The main representatives of flexible pavement are various asphalt surfaces, including asphalt concrete (referred to as concrete after compaction in British standards) surfaces, asphalt macadam surfaces, and asphalt penetration crushed (gravel) stone surfaces. 3. Semi-rigid pavement: Some pavement materials exhibit flexible pavement characteristics in the early construction stage and nearly rigid pavement characteristics in the later stage. Such pavements are called semi-rigid pavements. Examples include pavements constructed with lime-stabilized soil, cement-stabilized soil, lime-fly ash, and lime-slag materials.