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由于橡胶颗粒与沥青粘附性差,干法橡胶改性沥青混合料在实际应用中存在易剥落的现象,为解决这一问题,研究将消石灰、水泥及二者复合物掺入橡胶改性沥青混合料中,提高橡胶颗粒与沥青之间的粘附性,有效改善混合料的路用性能。通过室内试验确定适宜添加剂量,并进行路用性能验证。结果表明,添加3种抗剥落剂均能提高水稳定性及高温稳定性;添加1.5%消石灰沥青混合料具有最好的抗剥落性能。
Due to the poor adhesion between rubber particles and asphalt, the dry rubber-modified asphalt mixture is easy to peel off in practical applications. To solve this problem, the study is to mix the slaked lime, cement and the two compounds into the rubber-modified asphalt mixture In the material, the adhesion between the rubber particles and the asphalt is improved, and the road performance of the mixture is effectively improved. Through laboratory tests to determine the appropriate dosage, and road performance verification. The results showed that the addition of three kinds of anti-stripping agent can improve water stability and high temperature stability; adding 1.5% slaked lime asphalt mixture has the best anti-spalling properties.