快三第一门户购彩大厅

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                快三第一门户购彩大厅

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                            大孔隙排水沥青磨耗层OGFC
                            更新时间:2021-06-04 15:11:29 字号:T|T
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                            试验项目 AC-20C
                            马歇尔试件击实次数 两面击实75次
                            空隙率VV(%) 3~5
                            矿料间隙率VMA(%) 设计空隙率3%   不小于 12
                              设计空隙率4%   不小于 13
                              设计空隙率5%   不小于 14
                            沥青饱和度VFA(%) 65~80
                            稳定度(KN)                            不小于 8.0
                            流值(mm) 2~4
                            车辙试验动稳定度(次/mm)               不小于 1000
                            低温弯曲试验破坏应变()             不小于 2000
                            沥青与石料的粘附性(级)                   不小于 5
                            残留稳定度(48h)(%)                  不小于 80
                            冻融劈裂强度比(%)                    不小于 75
                            渗水系数(ml/min)                      不大于 120
                            路面现场空隙率(%)                    不大于 7