Influence of different high viscosity agents on pavement performance of drained asphalt wear layer
Different high viscosity modifiers are used to modify SBS modified asphalt to obtain high viscosity modified asphalt.The high temperature rutting resistance,low temperature cracking resistance and water stability of different high viscosity modified drainage asphalt wear layers are studied through high temperature rutting test,low temperature trabecular bending test and freeze-thaw splitting test.The results show that high viscosity modifier B has the best modification effect on SBS modified asphalt.The dynamic stability of high modulus agent B modified asphalt at 60℃reaches 11665 times/mm,the bending failure strain is 3862uε,and the residual strength ratio of freeze-thaw splitting is 91.5%.
drainage asphalt wear layerhigh viscosity modified asphalthigh temperature stabilitylow temperature crack resistancewater stability
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