Application Research Of Glass Fiber Grid In Asphalt Pavement Of Rapid Track From Zhengzhou To Kaifeng

At present,many asphalt pavements need to be maintained and spread to strengthen the structure and improve the function of road surfaces,then prolong the life of asphalt pavement.Study proves that glass fiber grill can effectively diminish the thickness of asphalt pavement,reduce the cost of pavement,also improve the road-performance.In the paper,glassfiber grid to strengthen the mechanism of asphalt pavement,construction technology,road performance and structural design of the study:Firstly,glass fiber grid of product characteristics and functions,from fatigue to resist cracking,rutting ease the high temperature,low temperature resistance shrink cracked,delaying reflection of cracks in the glass fiber geogrid to strengthen the role of asphalt pavement,providing the surface shear performance indicators,performance indicators shear layer of asphalt surface layer and the grid for the pull-out performance evaluation standards,through a self-designed test methods and devices to test comparison.Secondly,glass fiber grid reinforced of the test on the road,through the Glass fiber grid strengthen asphalt pavement and conventional asphalt pavement structure of the technical performance of comparative test on the asphalt pavement,the quantitative evaluation to glass fiber grid to strengthen the performance of high-temperature rut,antifreeze,water resistance performance and stability.Finaly,use of composite materials theory,strengthen the grid structure of the asphalt pavement layer of the composite material and its mode of performance indicators for determining methods,built a flexible layered system based on the grid to strengthen asphalt pavement structural analysis model,its analysis Stress shift changes of the existing road with asphalt pavement design specifications,respectively, to design procedures for ordinary asphalt pavement and asphalt pavement grid to strengthen the structure of the comparison,the calculated parameters such as the identification,design indicators added that the calculation of the amendment,and The need to improve the design of glass fiber grid to strengthen asphalt pavement characteristics.