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首页> 外文期刊>The international journal of pavement engineering & asphalt technology >EVALUATING THE DEFORMATION RESISTANCE OF HALF-WARM BITUMEN EMULSION MIXTURE
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EVALUATING THE DEFORMATION RESISTANCE OF HALF-WARM BITUMEN EMULSION MIXTURE

机译：评估半温暖双乳乳液混合物的抗变形能力

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Cold Bitumen Emulsion Mixture (CBEM) offers a promising and interesting paving technology, mainly due to positive sustainable impacts that related to low energy consumption and less CO_2 emissions; which are both reflects as economic benefit when compared to traditional Hot-Mix Asphalt (HMA). Unfortunately, this technology has inherent problem due to trapped water that base at the interface between the bitumen film and aggregate particles. Such trapped water is originated from the bitumen emulsion and pre-wetting water content through the preparation of this mixture, consequently low early strength and high porosity are expected. Therefore, this research work was essential aimed to enhance the performance of CBEMs using low heat energy via microwave. It was found that the optimum heating temperature being less than 100 °C, thus the treated mixture called Half Warm Bitumen Emulsion Mixture (HWBEM). CBEMs were prepared according to MS-14 with two type fillers (hydraulic and inert); namely, Ordinary Portland Cement (OPC) and Conventional Mineral Filler (CMF) to explore the benefit of low energy heating process with different filler types. While Marshall test parameters and Wheel track test were used to identify the performance of various mixes to resist deformation. From the obtained results, HWBEM comprising OPC demonstrated better deformation resistance with vital enhancement in its volumetric and mechanical characteristics comparable to HMA and CBEM. However, HWBEM can be considered as a promising technology to sustain and enforce the concept of sustainable paving technology.
机译：冷沥青乳液混合物（CBEM）提供了一种有前途且有趣的摊铺技术，这主要是由于与低能耗和少CO_2排放有关的积极的可持续影响。与传统的热拌沥青混合料（HMA）相比，两者均体现为经济利益。不幸的是，由于滞留在沥青膜和聚集颗粒之间的界面的水分，该技术具有固有的问题。这种截留的水源于沥青乳液和通过制备该混合物而预润湿的水含量，因此预期低的早期强度和高的孔隙率。因此，这项研究工作对于利用微波通过低热能提高CBEM的性能至关重要。发现最佳加热温度低于100℃，因此处理过的混合物称为半温沥青乳液混合物（HWBEM）。 CBEM按照MS-14制备，使用两种类型的填充剂（液压填充剂和惰性填充剂）；分别是普通波特兰水泥（OPC）和常规矿物填料（CMF），以探索使用不同填料类型的低能加热工艺的好处。而使用Marshall测试参数和Wheel track测试来识别各种混合物的性能以抵抗变形。从获得的结果来看，与OMA和CBEM相比，包含OPC的HWBEM表现出更好的抗变形性，并且在体积和机械特性方面也有了显着提高。但是，HWBEM可以被视为维持和执行可持续铺路技术概念的有前途的技术。

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