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使用废旧陶瓷代替部分集料并以环氧沥青作为胶结料形成陶瓷热阻磨耗层,通过车辙试验、低温弯曲试验、冻融劈裂试验和浸水马歇尔试验对陶瓷环氧沥青混合料路用性能进行评价,并与传统环氧沥青混合料、掺加等量陶瓷的SBS改性沥青混合料进行对比。试验结果表明,相比传统环氧沥青混合料,陶瓷的掺入使得环氧沥青混合料高温稳定性有较大程度降低,对低温抗裂性及水稳定性影响不大,适宜的陶瓷掺量可以保证环氧沥青混合料拥有良好的高温稳定性;相比掺加等量陶瓷的SBS改性沥青混合料,陶瓷的掺入对环氧沥青混合料高温稳定性影响程度更小,对低温抗裂性及水稳定性影响程度相差不大。为保证环氧沥青混合料的路用性能,陶瓷掺量不宜超过60%。
Waste ceramic was used to replace part of aggregates and epoxy asphalt was used as binder to form ceramic thermal resistance wear layer. The performance of ceramic epoxy asphalt mixture was evaluated by rutting test, low temperature bending test, freeze-thaw splitting test and immersion Marshall test Evaluation, and with the traditional epoxy asphalt mixture, the same amount of ceramic SBS modified asphalt mixture for comparison. The experimental results show that compared with the traditional epoxy asphalt mixture, the incorporation of ceramic makes the epoxy asphalt mixture have a lower degree of high temperature stability, little effect on the low temperature crack resistance and water stability, and the suitable ceramic dosage Epoxy asphalt mixture can ensure good high temperature stability; Compared with SBS modified asphalt mixture doped with the same amount of ceramic, the incorporation of ceramic epoxy asphalt mixture high temperature stability less affected, low temperature resistance Cracking and water stability have little difference. To ensure the road performance of epoxy asphalt mixture, the amount of ceramic should not exceed 60%.