SMA-13上面层（SBS改性沥青）配合比设计及施工质量
控制
刘宏鸣
【期刊名称】《微计算机信息》 【年(卷),期】2014(000)013
【摘要】沥青玛蹄脂碎石混合料（SMA）是按照内摩擦角最大的原则，以间断级配的粗集料形成相互嵌挤的矿料骨架，然后按照空隙率较小的原则，以沥青玛蹄脂填充骨架的空隙，形成一种骨架密实型沥青混合料。该混合料具有很好的耐久性、抗高温稳定性、抗低温开裂性、抗滑性和较好的防渗性能。沥青玛蹄脂碎石混合料的构成特性俗称“三多一少”，即沥青用量多、矿粉用量多、粗骨料用量多、细集料少。以攀枝花某路面工程SMA-13上面层（SBS改性沥青）施工为例，来说明SMA的配合比设计和施工质量控制。%Mastic asphalt macadam mixture(SMA)is in accordance with the internal friction angle of the maximum principle, gap-graded coarse aggregate to form a mutually embedded squeeze mineral aggregate skeleton, and then follow the principles of smaller porosity, bitumen Mastic skeleton filled voids, forming a skeleton dense asphalt mixture. The mix has good durability, resistance to high temperature stability, resistance to low temperature cracking resistance, slip resistance and better seepage performance. Mastic asphalt composition characteristics gravel mix called“a little”, ie more than the amount of asphalt, more than the amount of slag, coarse aggregate amount, less fine aggregate.
SMA-13上面层(SBS改性沥青)配合比设计及施工质量控制
