机构地区: 新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052
出 处: 《粉煤灰综合利用》 2017年第4期13-17,共5页
摘 要: 运用投影寻踪回归分析研究了骨料各粒级级配偏差对心墙沥青混凝土渗透性能、马歇尔稳定度、流值及劈裂抗拉强度的影响。研究结果表明:当各粒级的级配偏差为±5%时,心墙沥青混凝土的渗透系数变化不大,均能满足防渗要求;对心墙沥青混凝土力学性能影响程度依次为(4.75~9.5)mm粒级、(2.36~4.75)mm粒级、(9.5~19)mm粒级、(0.075~2.36)mm粒级。因此,在施工过程要求现场的试验人员严格控制(4.75~9.5)mm粒级的级配偏差,确保施工质量。 By which includes by using projection pursuit regression analysis It is studied that.The results show that it can meet the requirements of seepage control when the graded grading error is plus or minus 5% and the core wall of asphalt concrete permeability changes stightly. The wall of asphalt concrete mechanics performance influence degree of graded(4.75~9.5)mm, graded(2.36~4.75)mm, graded(9.5~19)mm, graded(0.075~2.36)mm. Therefore, in the practical engineering field,(4.75~9.5)mm graded grading deviation should be strictly controlled to ensure construction quality.