Highway Bituminous Pavement Reasonable Thickness Research

Along with our country modernization unceasing development, our country highway construction has obtained the unprecedented result.But center under the surface layer should use what kind of bituminous mixture and what kind of structure combination regarding the highwayasphalt on does not have a practical feasible plan. In order to solvethis problem, prevented the road surface from this appears the earlytime to damage, the paper was thick and the combination form to the bituminous pavement reasonable level has conducted the research..This article first through the bituminous pavement structure levelthickness and the nominal maximum particle size relations research,from the experimental analysis angle proposed bituminous pavement structure level thickness and the nominal maximum particle size proportion relations, and produce the surface layer different position, different bituminous mixture type suggestion thickness.Next center under the surface layer must have the enough hight emperature stability in view of the asphalt on, based on wheel rutexperimental study surface layer built-up section. Simultaneously considered the surface layer should have the enough water stability, the low temperature anti- dehiscence, anti- sliding and so on, the union correlation experiment produces on the surface layer recommendation material and thickness. Under and acts according to theanti-endurance test to produce the surface layer recommendation material and thickness. Moreover, the basis elasticity layered systemtheory, has analyzed the bituminous pavement shearing stress, has produced based on the level the shearing stress bituminous pavement combination suggestion.Finally through to identical thickness different surface layer combination construction cost analysis, compared with each combination form in economical rationality. The comprehensive technical economical performance, finally produces the surface layer combination suggestion.The paper is for the purpose of based on above analyzing produces the surface layer suggestion thickness and the combination form, hopedwill be able provides the reference for the next highway construction Bituminous pavement thickness determination and the combination formchoice.