Rubber Asphalt Performance Test And Production Equipment Research

This article is based on north circle highway surface. It adopt the method of indoor test for the performance of rubber asphalt research.This paper was studied by indoor test, fineness and dosage of powder type affect the performance of rubber asphalt matrix asphalt. Focus on the porch in xi ’an and shell powder and SK- 90, 90, two kinds of bitumen compatibility research and contrast the different dosage of rubber powder and rubber asphalt viscosity, softening point, cone into the degree, the relationship between elastic recovery and ductility. From the viscosity of important parameters to judge, it is concluded that rubber powder content 22%, powder 40 mesh, mesh and shell asphalt selection SK- 90, 90.The compatibility test result of the high temperature stability, low temperature performance and elastic recovery properties were better. At the same time to study the influences of different matrix asphalt on the indexes. By the contrast test of above parameters influence on the performance of rubber asphalt have similar laws. In addition, the rubber asphalt is studied the relationship between various performance indicators, it is concluded that the softening point and spring back recovery, there is a certain relationship ductility. The high temperature stability of rubber asphalt performance and fatigue resistance, low temperature crack resistance performance there is a certain relationship.To make rubber powder and asphalt mixing more even, improved the mixing system of rubber asphalt production equipment. Through the unique design, can realize good circulation flow and turbulent flow. Mixer was established based on Pro/E model, determine the geometrical size of the mixing tank, mixing blades decorate a form to three layers structure of mixing blades, top of the blade and the second and third group installed in the opposite direction. So the structure is the reaction mixtures of storage tanks for severe convection back mixing.Scrap tire rubber powder was applied to highway surface, can effectively solve the pollution problem of waste rubber tyre, also can improve the performance of pavement, reduce the cost of the use of asphalt conforms to our country \ "environmental protection, ecological, regeneration, and save\" the policy guidance, will create a good social benefit and economic benefit. The project of the implementation of the rubber asphalt layer above engineering and the development of rubber asphalt technology has important theoretical and practical value.