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以矿料碱值、表面电荷作用以及沥青基本特性为研究对象,建立这些性质与粘附性的关系。研究结果表明:矿料的碱值越高,与沥青粘附性越好,集料的ζ电位为正值时,其值越大,与沥青的粘附性也越大;ζ电位为负值时,其绝对值越大,与沥青的粘附性越差。沥青各组分中沥青质和胶质与花岗岩的粘附性最好;沥青的导电率越大,介电常数越小,沥青与集料粘附性越好;蜡含量越高,沥青与集料粘附性越差。
Taking the mineral base, surface charge and the basic properties of asphalt as the research object, the relationship between these properties and the adhesion was established. The results show that: the higher the base value of mineral aggregate, the better the adhesion with asphalt, the greater the value of ζ potential of the aggregates, the greater the adhesiveness with asphalt; the zeta potential is negative , The greater its absolute value, the poorer its adhesion to the asphalt. The asphaltenes and gums in asphalt have the best adhesion with granite. The higher the conductivity of asphalt is, the smaller the dielectric constant is, the better the adhesion between asphalt and aggregate is. The higher the wax content, The worse the material adhesion.