混凝土再生粉料对水泥稳定基层性能的影响试验

发布时间：2018-04-03 05:13

本文选题：水泥稳定集料基层　切入点：再生混凝土粉料　出处：《公路》2014年11期

【摘要】：旧水泥混凝土路面板集料化再生加工产生大量的粉料,用于水泥稳定基层可以将其变废为宝。通过对不同粉料掺配方案的水泥稳定集料基层混合料的抗压及劈裂强度、抗压及劈裂模量、浸水抗压强度、冻融循环抗压强度、干缩和温缩的试验测试,对混合料的力学性能、水稳定性、收缩性能进行了对比分析。试验结果表明:再生粉料有利于提升水泥稳定混合料的力学性能、水稳定性和干燥收缩性能,对温度收缩的影响也不大,完全能够满足公路路面基层的应用要求。
[Abstract]:A large amount of powder is produced by recycled aggregate of old cement concrete pavement slab, which can be turned into a treasure when used in cement stabilized base course.By testing the compressive and splitting strength, modulus of compression and splitting, immersion compressive strength, freeze-thaw cycle compressive strength, dry shrinkage and temperature shrinkage of cement stabilized aggregate base mixture with different powder blending schemes, the mechanical properties of the mixture are studied.Water stability and shrinkage were compared and analyzed.The test results show that the recycled powder can improve the mechanical properties of cement stabilized mixture, water stability and drying shrinkage, and has little effect on temperature shrinkage, which can fully meet the application requirements of highway pavement base.
【作者单位】：江苏省常州市公路管理处;东南大学交通学院;
【基金】：江苏省基础研究计划(自然科学基金)资助项目,项目编号BK2010031
【分类号】：U414

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