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首页> 外文期刊>The international journal of pavement engineering >Effects on engineering properties of cement-treated road base with slow setting bitumen emulsion
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Effects on engineering properties of cement-treated road base with slow setting bitumen emulsion

机译：慢凝型沥青乳液对水泥路基工程性能的影响

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摘要

This study investigated the effects of the type and amount of Portland cement and cationic slow setting bitumen emulsion additives on the short- and long-term performance of road-based properties using laboratory mechanistic evaluation. Stabilised specimens with Portland cement (0-6%) and bitumen emulsion (0-6%) were compacted, cured for 7, 28 and 60days; and finally subjected to different stress sequences to study their unconfined compressive strength, indirect tensile resident modulus and indirect tensile strength tests. The durability of stabilised soil specimens was investigated by conducting wetting and drying (WD) cycling test on 7days cured specimens. The results showed the added 4% portland cement-3% bitumen emulsion mix was ideal and produced a 179.4% reduction in the water absorption and permeability, 256.3% reduction in volume changes and 211.95% reduction in weight losses relative to a 4% cement sample. This paper presents the findings of a correlation that was conducted using non-linear regression analysis regarding the influences of the affected variables in order to establish models to predict the mixture strength parameters.
机译：这项研究使用实验室机制评估方法研究了波特兰水泥和阳离子型慢凝沥青乳液添加剂的类型和用量对道路性质的短期和长期性能的影响。用波特兰水泥（0-6％）和沥青乳液（0-6％）稳定的标本被压实，固化7、28和60天。最后经受不同的应力序列研究其无侧限抗压强度，间接拉伸常驻模量和间接拉伸强度试验。通过对7天固化样品进行润湿和干燥（WD）循环测试，研究了稳定土壤样品的耐久性。结果表明，相对于4％的水泥样品，添加4％的硅酸盐水泥和3％的沥青乳液混合物是理想的，其吸水率和渗透率降低了179.4％，体积变化降低了256.3％，重量损失降低了211.95％。 。本文介绍了使用非线性回归分析对受影响变量的影响进行相关性的发现，以便建立模型来预测混合强度参数。

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