Research on Gradation of Giant Particle Asphalt Mixture
To determine the optimal gradation for giant-grained asphalt mixture with a nominal maxi-mum particle size of 37.5 mm,the graded filling,CBR tests,and road performance tests were conduc-ted.It was found that the optimal performance is achieved when the proportion of coarse aggregates is 39∶21∶20 in the size ranges of 31.5～37.5 mm,19～31.5 mm,and 9.5～19 mm.For fine aggre-gates,when the i-value is between 0.55 and 0.75,the high-temperature performance and water stabil-ity increase first and then decrease,while low-temperature performance continues to decline.Com-pared to ATB-30,SLSM-40 exhibits the best performance when the i-value is 0.7.
giant particle asphalt mixtureCBRstep by step fillingmethod iroad performance
万方数据
维普
