以废弃混凝土为骨料的二灰碎石的路用性能

Pavement Performance of Lime-Fly Ash Macadam Using Waste Concrete as Aggregate

采用废弃混凝土为骨料制作了试件,对以废弃混凝土为再生骨料的二灰碎石的路用性能进行了研究,结果表明:用再生骨料制作的二灰碎石半刚性基层材料显示出良好的力学性能,其无侧限抗压强度、间接抗拉强度和室内抗压回弹模量等主要力学性能指标完全满足现行规范的要求。

Waste concrete was applied as aggregate to make specimen of lime-fly ash macadam, and the pave-ment performance of macadam was studied. The results indicate that the lime-fly ash macadam shows favorable mechanics performance when it＇s applied to semi-rigid base course; main indices such as the unconfined com-pressive strength, indirect tensile strength and indoor compressive modulus of resilience completely satisfy the specification.