【摘要】 针对微表处常用的两类SBS、SBR改性乳化沥青混合料的相关性能展开研究，并对2.5%SBS+2.5%SBR复合乳化沥青混合料的路用性能进行了研究与应用。室内试验表明：相比于5%SBS、5%SBR改性乳化沥青，2.5%SBS+2.5%SBR复合改性乳化沥青综合性能最为优异；2.5%SBS+2.5%SBR复合改性乳化沥青混合料路用性能优异，三类乳化沥青混合料的耐磨耗、抗水损坏、抗车辙性能优劣排序：2.5%SBS+2.5%SBR> 5%SBS> 5%SBR;2.5%SBS+2.5%SBR复合改性乳化沥青混合料的耐磨耗性能提高不大，但抗水损坏性能得到了显著提高。工程应用表明：旧路在加铺2.5%SBS+2.5%SBR微表处罩面后，构造深度、摩擦系数及抗滑值较大，路面抗渗性能优异。更多还原

【Abstract】 The related properties of two kinds of SBS and SBR modified emulsified asphalt mixtures commonly used in micro surfacing are studied, and the road performance of 2.5% SBS+2.5% SBR composite emulsified asphalt mixture is studied and applied. The indoor test shows that compared with 5% SBS and 5% SBR modified emulsified asphalt, the softening point of evaporation residue of 2.5%SBS+2.5% SBR composite modified emulsified asphalt is the highest, the penetration is the lowest, the ductility is between the two, and the comprehensive performance is the best. 2.5% SBS+2.5% SBR composite modified emulsified asphalt mixture has excellent road performance.The ranking of wear resistance, water damage resistance and rutting resistance of the three types of emulsified asphalt mixture is 2.5% SBS + 2.5% SBR > 5% SBS >5% SBR. Compared with 5% SBS and 5% SBR modified emulsified asphalt mixture, the wear resistance of 2.5%SBS + 2.5% SBR composite modified emulsified asphalt mixture is not improved, but the water damage resistance is significantly improved. The engineering application shows that after the overlay of 2.5% SBS+2.5% SBR micro surface is paved on the old road, the structural depth,friction coefficient and anti sliding value are large, and the pavement impermeability is excellent.更多还原