论文部分内容阅读
文章介绍了工业废渣——粒化高炉矿渣粉,在路面基层中作为结合料,在沥青混合料中作为填料2方面的试验研究。结果表明:所研究新型结合料(NB)能够满足路面基层结合料强度的需求,同时缓凝、抗裂性能好,用它来稳定细粒土与粗粒土,28、90天强度均有不同程度的提高,抗裂性能显著改善,最大干密度与28天无侧限抗压强度受延迟时间的影响小,甚至有正面影响,表明NB是优质的基层专用结合料。矿渣粉作为沥青混合料中的填料代替石灰石粉,由于其级配比石灰石粉的更优,能够减少矿料骨架间隙率,从而减少沥青用量,而混合料路用性能中抗车辙性能有明显提高,水稳定性保持不变,低温弯曲应变几乎不受影响。
The article introduces the industrial waste - Granulated blast furnace slag powder, as a binder in the pavement base, as a filler in asphalt mixture 2 aspects of the experimental study. The results show that the new type of binder (NB) can meet the needs of pavement base cohesive strength and has good retarding and cracking resistance. It can be used to stabilize both fine and coarse grained soils, with different intensities at 28 and 90 days Degree of improvement, crack resistance improved significantly, the maximum dry density and unconfined compressive strength of 28 days by the delay time of little effect, and even positive impact, indicating that NB is a good base for bonding material. Slag powder as a filler in asphalt mixture instead of limestone powder, due to its better than the limestone powder grading, can reduce the skeleton ratio of mineral aggregate, thereby reducing the amount of asphalt, and road performance of the mixture significantly improved rutting resistance , Water stability remains unchanged, low temperature bending strain is almost unaffected.