CAJ | 학술논문

对硬沥青混合料、70#沥青混合料、SBS改性沥青混合料分别进行高温稳定性(为0.7 MPa下50 ℃、60 ℃、70℃3个温度状况下的车辙试验)、低温抗裂性(小梁低温弯曲试验)、水稳性(冻融劈裂试验、残留稳定度试验)、疲劳性能(APA疲劳试验)的全面对比试验.试验结果表明,高模量沥青混合料具有较好的抗车辙性能;在-5℃时极限荷载约14 000 N,表明了其仍然具有良好的低温抗裂性能;冻融劈裂试验表明,AC-20C(30#)沥青混合料具有高的冻融劈裂强度比,具有较好的水稳定性.
대경력청혼합료、70#력청혼합료、SBS개성력청혼합료분별진행고온은정성(위0.7 MPa하50 ℃、60 ℃、70℃3개온도상황하적차철시험)、저온항렬성(소량저온만곡시험)、수은성(동융벽렬시험、잔류은정도시험)、피로성능(APA피로시험)적전면대비시험.시험결과표명,고모량력청혼합료구유교호적항차철성능;재-5℃시겁한하재약14 000 N,표명료기잉연구유량호적저온항렬성능;동융벽렬시험표명,AC-20C(30#)력청혼합료구유고적동융벽렬강도비,구유교호적수은정성.
Aim to the hard asphalt mixture, 70 # asphalt mixture, SBS modified asphalt mixture were heatstable (for the 0.7 MPa under 50 ℃、60 ℃、70 ℃ three temperature conditions of the rutting test) , low temperature crack resistance ( trabecular low temperature bending test), water stability (freeze -thaw fracturing tests, residual stability test), fatigue performance (APA fatigue test). the results show that , High modulus asphalt mixtures have better resistance to rutting performance. as the limit load is about 14 000 N. at -5 ℃the high modulus asphalt mixture still has a good low-temperature anti-cracking performance . Freezethaw splitting results showed that AC -20C (30 #) asphalt mixture with a high intensity ratio of the freezethaw cleavage, with good water stability.