Asphalt Rubber Gravel, Glass Fiber Mixture Of Bitumen Macadam Road Surface Crack Resistance Research

I participated in the research group of "study on crazing -resistance performance of Asphalt mixture pavement"(plan No: 98G403) as approved by Henan Provincial Communications Department. The thesis is prepared in combination with the study of such research.The main contents that are researched in the thesis are : asphalt mixture low temperature crazing principle , the influencing factor of asphalt mixtures low temperature crazing ,asphalt-rubber macadam , the pressure-resistance intensity , the crazing high temperature , the smooth-resistance and construction technology ,the technological economical compare and so on , exploring the new-type structural combinations of asphalt pavement.Through the Marshall experiment and the low temperature crazing-resistance intensity experiment , which work on the asphalt-rubber macadam , fiberglass asphalt macadam indoors ,we have got various kinds of experimental data , carrying out experiment by means of the method of mathematical statistics ,we have got various kinds of experimental data .dealing with the experimental data by means of the method of mathematical statistics , through contrast and analyzing , we have put forward the best suitable rate of the three asphalt macadam ,hi the laboratory asphalt macadam ,In the laboratory and the asphalt mixtures blending gathering plane , we have groped after paving technology of the asphalt-rubber macadam .Through the experimental research , we think :the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam ,however ,if use elasticized capacity to solve blending technological problem .adjust the breed of fiber silk , extend its diameter , its paving capacity is still worth exploring , Asphalt-rubber macadam structure lager have good deformed-become capacity and crazed-resistance capacity , small gap rate .good water-resistance capacity ,good hot-stability and simple construction technology .therefore .pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue .and is the good structural measure of preventing half-rigidity grass-roots unit shrink-rift reflecting .pave a thin layer of pitch rubber spall between asphalt -typepavement layer and half-rigidity basic level ,although the cost of building is higher than paving Togongbu in the middle , the construction technology, crazing-resistance and water-resistance are better than Togongbu , not only could reduce greatly the reflex of half-rigidity grass-roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer , though the cast of building in the early days becomes more ,in the long-term opinion, it have fully important technological and economical significance .The achievement have important practical guided action to the maintaining and design of the asphalt pavement , for reducing the maintaining fee of the asphalt pavement and lengthen the use lifespan of the pavement, it have important economical social significance .