【摘要】 浇筑式沥青混凝土是现在水利工程中防水心墙的主要材料,沥青含量是影响其力学性质的重要因素。在室内通过温控高压三轴仪,分别对沥青含量为8.5%,10.5%,12.5%的沥青混凝土试件进行了常规三轴试验。试验结果表明:温度为5℃及10℃时,试件的最大偏应力及切线模量系数K随沥青含量的增加而减小;黏聚力c随沥青含量的增加呈现出非线性减小;内摩擦角φ则随沥青含量的增加呈现出先增加后减少的趋势;试件的蠕变随沥青含量的增加而增加,蠕变速率增加的比例大于沥青含量增加的比例。更多还原

【Abstract】 Pouring asphalt concrete is the main waterproof material of core wall in water conservancy project,of which the asphalt content is an important factor affecting its mechanical properties.The asphalt concrete specimens with the asphalt content of 8.5%,10.5%,12.5% are respectively tested in the conventional triaxial tests.Test results are as follows: the maximum deviatoric stress and tangent modulus coefficient K of the specimens decreases as the asphalt content increases under temperature of 5 ℃,10 ℃;Cohesion c decreases non-linearly as the asphalt content increases;with an increase of asphalt content,internal friction angle increases first and drops later;creep of specimen increases with the asphalt content increases,and the increasing ratio of creep is larger than that of asphalt content.更多还原