Research Article
Durability Capacity Change of Rubber Powder Composite BRA Modified Asphalt Mixture
| | Group | 1 | 2 | 3 | 4 | 5 | 6 | | Benchmark mixture | BRA modification | BRA+1# glue powder modification | BRA+2# glue powder modification | BRA+3# glue powder modification | BRA+4# glue powder modification |
| | Bending tensile strength (MPa) | 9.351 | 15.290 | 11.273 | 11.029 | 14.381 | 16.068 | | Compared to benchmark mixture (%) | — | 63.5 | 20.6 | 17.9 | 53.8 | 71.8 | | Maximum flexural strain (με) | 0.016 | 0.010 | 0.015 | 0.011 | 0.013 | 0.015 | | Bending stiffness modulus (MPa) | 576.0 | 1520.4 | 743.9 | 990.9 | 1135.2 | 1080.1 | | Compared to benchmark mixture (%) | — | 164.0 | 29.1 | 72.0 | 97.1 | 87.5 |
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