Research On Mixing Ratio Design Method Of Rubber Particle Asphalt Mixture

In recent years, with the constant progress of the society and the rapid development of auto industry, asphalt mixture pavement road performance improvement and reduce the pollution from waste tires has become a problem in transportation departments. Adding waste rubber particles in asphalt mixture is a very effective way to handle it. Rubber particles has large elastic deformation capacity, in the vehicle load and stress under the action of the ice snow pavement will have certain ability.On the basis of extensive investigation of dry rubber asphalt mixture has carried on the research of key technology. Through a lot of experimental research, the research of rubber particles in asphalt mixture design of mix proportion and the best mixing, molding process and analysis in different content and particle size of rubber particles under the influence of road pavement is if you have any change, and the content of rubber particles and particle size of recommended value is given. Analysis influence dry rubber asphalt mixture of road performance. Through adding lime hydrate, aluminum acid ester and other additives, improve the mix of cohesiveness, eliminate the phenomenon of threshing, off, improve its durability, and through the test road paving the relevant test data, for the technology in seasonally frozen regions Liaoning and Shenyang promotion to establish technical support, provide relevant research achievements for the development of the technology.The research results show that the mixing time of asphalt mixture of rubber particles should be appropriately increased,appropriate increase of the heating temperature and the mixture of the mixture, use the two-step molding technology can be significantly reduce the rubber particles asphalt mixture of the void and rebound rate with fine molding quality. Compared with common asphalt mixture, the dry rubber asphalt mixture has good high temperature stability, low temperature anti cracking performance and anti slide performance, and the other indexes meet the corresponding standard.Through the development of solid engineering test road, the mixing process of rubber asphalt pavement, paving process is studied, and the pavement performance indexes are tested.In conclusion, dry rubber particles in asphalt mixture has prominent anti-sliding performance and rutting resistance, low temperature crack resistance and durability also relatively common asphalt mixture is increased greatly, many indicators to the mixture of modified asphalt mixture and SMA modified asphalt mixture of standards, and construction technology is simple, low cost, and effective utilization of waste rubber resources, is a have good application prospects of new technology.