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成型3种不同沥青的混合料马歇尔试件,进行柴油浸泡试验,试验过程中观察试件的外观变化,测定各组试件的质量和稳定度变化。试验结果表明,掺改性添加剂MPE的沥青混合料抗油蚀性最强,24h后试件沥青膜保持完好,质量损失小于0.5%,马歇尔稳定度大于8kN,SBS改性沥青与普通70号沥青抗油性较差,24h后表面沥青膜基本剥落,质量损失约5%,稳定度均小于8kN。
The hybrid Marshall specimens of three different bitumen samples were formed and subjected to diesel immersion test. During the test, the appearance of the specimens was observed and the quality and stability of the specimens were measured. The results show that the asphalt mixture with modified additive MPE has the strongest oil resistance and the asphalt film remains intact after 24 hours, the mass loss is less than 0.5% and the Marshall stability is greater than 8kN. SBS modified asphalt is similar to ordinary asphalt 70 Oil resistance is poor, the surface of the basic asphalt peeling film after 24h, the quality loss of about 5%, the stability is less than 8kN.