发泡温拌沥青与再生沥青路面的老化演变

IF 1.1 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Materiales de Construccion Pub Date : 2017-07-10 DOI:10.3989/MC.2017.04716

M. Pérez-Martinez, P. Marsac, T. Gabet, S. Pouget, F. Hammoum

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引用次数: 3

摘要

高再生率沥青路面(RAP)和温拌沥青(WMA)技术的结合在耐久性方面仍然不明确。为了澄清这一问题，研究了热拌沥青与泡沫工艺制备的WMA的比较。两种混合物都含有50%的RAP，并经过实验室老化程序。通过复模量和疲劳试验，比较了混合料的长期相关性能。对回收沥青进行了穿透、环和球测试，以及老化演变，并通过傅里叶变换红外分析进行了表征。最后，用δ-法从流变学测量中计算了粘合剂的表观分子量分布(AMWD)。结果表明，时效演化与力学性能之间存在一定的关系。在衰老之后，这两个过程的总体趋势是相似的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ageing evolution of foamed warm mix asphalt combined with reclaimed asphalt pavement

The combination of high rates of reclaimed asphalt pavement (RAP) and warm mix asphalt (WMA) technologies is still ambiguous in terms of durability. With the aim of clarifying this issue, a study comparing a hot mix asphalt with a WMA prepared using the foaming process technology. Both mixes contain 50% of RAP and are submitted to a laboratory ageing procedure. The long term related performance of the mixtures is compared by means of complex modulus and fatigue testing. Penetration and ring and ball tests are undertaken on the recovered bitumens, as well as the ageing evolution, characterised by the Fourier Transform Infrared analysis. Finally, the Apparent Molecular Weight Distribution (AMWD) of the binders is calculated from rheological measurements using the δ-method. Results show a relation between ageing evolution and mechanical performance. After ageing, the overall tendencies are similar for both processes.

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来源期刊

Materiales de Construccion 工程技术-材料科学：综合

CiteScore

3.20

自引率

9.50%

发文量

审稿时长

>12 weeks

期刊介绍： Materiales de Construcción is a quarterly, scientific Journal published in English, intended for researchers, plant technicians and other professionals engaged in the area of Construction, Materials Science and Technology. Scientific articles focus mainly on: - Physics and chemistry of the formation of cement and other binders. - Cement and concrete. Components (aggregate, admixtures, additions and similar). Behaviour and properties. - Durability and corrosion of other construction materials. - Restoration and conservation of the materials in heritage monuments. - Weathering and the deterioration of construction materials. - Use of industrial waste and by-products in construction. - Manufacture and properties of other construction materials, such as: gypsum/plaster, lime%2