现有施工技术条件、不改变现有沥青混合料拌和设备及沥青路面施工设备及工艺的前提下,水泥混凝土桥面的沥青铺装层超薄层压实难度较大,沥青层及其与水泥桥面剪切力随厚度减薄显著增加。本文通过室内试验,提出常规SBS改性沥青混凝土中采用基于直投沥青分散技术的化学添加剂DAT,并对混合料的性能进行试验和分析。在不改变提出了基于DAT添加剂的沥青混凝土桥面超薄层铺装技术 Existing construction technology conditions, without changing the existing asphalt mixing equipment and asphalt pavement construction equipment and technology under the premise of the cement concrete deck asphalt pavement superficial compaction difficult, asphalt layer and its cement The deck shear force increases significantly with decreasing thickness. In this paper, through laboratory tests, we propose that DAT, a chemical additive based on direct cast asphalt dispersion technology, be used in conventional SBS modified asphalt concrete. The performance of the mixture is tested and analyzed. Without changing the proposed ultra-thin layer pavement technology of asphalt concrete decks based on DAT additive