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水泥路面再生混凝土主要路用性能研究

DOI: 10.3969/j.issn.1674-0696.2014.01.12, PP. 52-54

Keywords: 再生混凝土,水泥路面,抗压强度,弯拉强度,耐磨性,recycledaggregateconcrete,concretepavement,compressivestrength,f1exura1strength,wearresistance

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Abstract:

:?通过系统的试验研究,获得了旧水泥路面板再生混凝土的主要路用性能技术指标(抗压强度、弯拉强度、耐磨性能等)及其随各种原材料与配合比因素的变化规律,并且分析了粉煤灰掺量对再生混凝土耐磨性能的影响规律,结果表明:旧水泥路面板破碎后再生骨料在骨料中的掺入量对再生泪凝土的抗压强度、弯拉强度、耐磨性能等路用性能具有显著的影响,与相同配合比的新骨料i昆凝土相比较,再生混凝土28d龄期的抗压强度约低5.3%-23.3%,弯拉强度要低6.4%-19.6%,单位磨损量增大3.8%-25.8%,适量粉煤灰的掺入能够改善再生混凝土的耐磨性能,再生1昆凝土的主要技术性能符合相关要求,可以作为新建水泥路面的建筑材料O

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