努尔加水库碾压式土石坝沥青混凝土心墙酸性砂砾石料的配合比试验研究

努尔加水库周围天然砂砾石料丰富,而碱性岩石料源距离坝址较远,为节省工程投资,对碾压式土石坝沥青混凝土心墙采用酸性砂砾石料进行了配合比试验研究,主要包括抗剥落剂的选型和沥青混凝土的水稳定试验,并对所推荐配合比的沥青混凝土进行了压缩、拉伸、弯曲、静三轴和渗透试验。结果表明:推荐配合比的沥青混凝土其各项物理力学性能均满足设计要求。

Experiment on mix proportion of acidic gravel stone for asphalt concrete core wall of rolled earth rockfill dam in Nulga reservoir

The natural material of gravel stone around Nulga reservoir is rich but the material of rock stone is far from dam area, in order to save the engineering investment, the paper researched mix proportion about asphalt concrete core wall which adopted acidic gravel stone of rolled fill dam in Nulga reservoir.The work mainly included the selection of antistripping agent and water stability test of asphalt concrete.It also carried out compression, stretching, bending, static triaxial and penetration test for asphalt concrete of recommended mix proportion. The results show that the various physical and mechanical properties of asphalt concrete of recommended mix proportion can satisfy the requirement of design.