Application of HET High Performance Anti-sliding Surface Technology in Composite Pavement Maintenance
Due to the special pavement structure of composite pavement,the cutting and cracking of cement concrete slab are easy to lead to stress concentration and cracking of asphalt pavement under the repeated action of traffic load and temperature load,and the repeated joint repair seriously affects the driving comfort.This paper takes the composite pavement overlay HET-Y(A)high-performance anti-sliding surface as an example,and studies the applicability of HET in composite pavement maintenance overlay from the HET-Y(A)material design,mixture processing,on-site construction technology and road performance decay law.The results show that HET-Y(A)has good high temperature stability,water stability and fatigue resistance;under the condition of heavy traffic grade,with 20-month service life,the crack reflectivity is only 4%,there is no shear disease,the pavement skid resistance and flatness are excellent,and the noise reduction effect has been good.It is considered that HET-Y(A)is suitable for composite pavement overlay and can be used in similar projects.
NETL
NSTL
万方数据
