橡胶沥青应力吸收层应用手册VIP免费

第1页共7页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共7页橡胶沥青应力吸收层应用手册第2页共7页第1页共7页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共7页重庆交大道路桥技术研究有限公司总工办编制2010年8月目录1．橡胶沥青应力吸收层介绍···············································································32.橡胶沥青应力吸收层的优点··············································································33.橡胶沥青应力吸收层应用领域···········································································44.橡胶沥青应力吸收层的设计与施工·····································································44.1橡胶沥青应力吸收层的设计······································································44.1.1材料技术要求················································································44.1.2施工技术要求················································································54.2橡胶沥青应力吸收层的施工······································································54.2.1设备要求······················································································54.2.2施工工艺······················································································64.3施工质量检查标准··················································································7第3页共7页第2页共7页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共7页1．橡胶沥青应力吸收层介绍橡胶沥青应力吸收层简称SAMI，是采用橡胶沥青作为胶结料的一种应力吸收层结构。橡胶沥青应力吸收层是在路面上洒布2～3kg/m2的橡胶沥青，同时在橡胶沥青上撒布一定量（一般建议为15～22kg/m2）的粒径9～12mm的预拌沥青碎石，形成1cm左右厚度的橡胶沥青应力吸收层，能有效地防止水分的侵入，同时与下面层和铺装层粘结紧密。2.橡胶沥青应力吸收层的优点（1）防水作用橡胶沥青应力吸收层能形成1cm左右厚度的沥青膜，能有效防止水分浸入基层和路基，起到保护路基和基层的作用。（2）粘结作用橡胶沥青应力吸收层具有优良的粘结作用，与下面层和上铺装层的粘结力均在1.0MPa以上（稀浆封层的粘结力为0.2～0.4Mpa，普通粘层油的粘结力为0.1Mpa左右），能有效将路面铺装层与基层粘结成一个整体，有利于结构整理受力，提高路面的使用寿命。（3）抗老化和耐久性SAMI采用橡胶沥青作为胶结料，橡胶沥青具有优良的抗老化和耐久性能，故SAMI也具有优良的抗老化和耐久性能。（4）减少路面反射裂缝第4页共7页第3页共7页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第4页共7页橡胶沥青胶结料能有效封闭原路面表面的微裂缝和空隙，同时，对于半刚性基层产生的收缩和干缩裂缝以及...