To further add structural strength to the load bearing capacity of the road a base stabilization method would be applied. This will help support increased traffic loads and extend the life of the asphalt pavement. Various methods of stabilizing are used to benefit the different types of base material found on existing roadways, new road construction, parking lots and building sub-bases
Super-Heated Liquid Asphalt Cement
The most common method of base stabilizing is the application of super-heated liquid asphalt cement mixed with the existing pulverized pavement structure or a gravel base. This process is performed by using a multi-drum mixing machine, producing a high strength flexible base, which in turn helps water proof the base, and renders it less susceptible to frost action, cracking and moisture damage. Stabilizing will reduce asphalt thickness requirements to meet structural strength specifications.
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Soil Cement, Lime Stabilization
The other types of stabilizing are soil cement and lime stabilization. These methods are used when clay and unstable soils are found in the base material. These unstable soils are laboratory tested. A determination can be made for the type of binder to be used and the amount needed to strengthen and meet the required compaction of the base material.
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