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应用新型CVC固化剂固化淤泥路用性能

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Keywords: 道路工程,CVC固化剂,固化淤泥,路用性能

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Abstract:

为深入研究新型CVC固化剂固化淤泥填筑道路的路用性能,通过对3个地区固化淤泥进行干缩试验、抗冲刷试验、抗冻融试验和劈裂试验,系统分析CVC固化剂中蛭石掺量对固化淤泥的收缩性影响规律,以及蛭石和有机质含量对固化淤泥耐水性能、抗冻融性能和抗拉能力的影响规律;并通过对比其他固化剂固化淤泥的相关性能,评价CVC固化剂固化淤泥填筑道路的路用性能。试验结果表明随着蛭石掺量的增加,固化淤泥的干缩应变和平均干缩系数变大,失水率却减小,固化淤泥抗冲刷性能与抗冻融性能显著提高,而劈裂强度有减小趋势;淤泥中的有机质对耐水性能、抗冻融性能和间接抗拉性能均有不利影响;CVC固化剂固化淤泥的路用性能优于其他普通固化剂。

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