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青红高速沥青稳定排水基层(ATPB)试验路拟实施三种方案:方案一采用高粘附性沥青,方案二采用SBS改性沥青,方案三采用70#道路石油沥青;矿料均采用石灰岩,其中粗集料分为10～30mm、10～20mm和5～10mm三种规格(分别简称1#料、2#料和3#料);细集料分为3～5mm和0～3mm机制砂两种规格(简称4#料和5#料)。通过对青红高速试验路三种路面结构方案进行ATPB混合料目标配合比设计,并根据目标配合比设计结果给出了备料方案,以指导试验路工程施工。
There are three schemes to be implemented in the trial course of the green and red high speed asphalt stabilized drainage base (ATPB): Highly adherent asphalt is used in scheme one, SBS modified asphalt is used in scheme two, and 70 # asphalt pavement is adopted in scheme three; limestone, The coarse aggregate is divided into three sizes of 10 ~ 30mm, 10 ~ 20mm and 5 ~ 10mm (1 #, 2 # and 3 # respectively); fine aggregate is divided into 3 ~ 5mm and 0 ~ 3mm mechanism sand Two specifications (referred to as 4 # material and 5 # material). According to the design scheme of the target mix of ATPB mixture for the three pavement structures of Qinghong high-speed test road, the preparation plan of the ATPB mixture is given according to the design of the target mix to guide the construction of the test road.