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针对当今钢箱梁桥面铺装层普遍存在的不到设计使用年限就出现的推移、拥包等病害,提出环氧灌入式大空隙沥青混凝土钢箱梁桥面铺装方案。对环氧灌浆料初始粘度、初凝时间、收缩率、固化后的抗压抗折强度进行综合分析,确定了灌浆料的最优配合比,测定了灌入后大空隙沥青混凝土的马歇尔稳定度、动稳定度和灌注密实度,通过拉拔试验评价了该方案铺装层材料的抗推移能力。
Aiming at the problems such as the passing of the design service life and the package bagging existing unceasingly in the current steel box girder bridge deck pavement, the scheme of epoxy pouring large void asphalt concrete steel box girder bridge deck is put forward. The initial viscosity, initial setting time, shrinkage and the compressive and flexural strength after curing were comprehensively analyzed to determine the optimal mixing ratio of grouting material, and the Marshall stability of large-gap asphalt concrete after filling , Dynamic stability and perfusion density, through the pull test to evaluate the program pavement material anti-push ability.