Analysis of stiffness and fatigue resistance of cold recycled asphalt mixtures manufactured with foamed bitumen for their application to airfield pavement design

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

Materiales de Construccion Pub Date : 2017-07-26 DOI:10.3989/MC.2017.04616

H. I. Lacalle-Jiménez, J. Edwards, N. Thom

引用次数: 7

Abstract

Cold recycled bound materials (CRBMs) provide an economic and environmental advantage for pavements since they decrease energy and raw material consumption. However, design methods for airfield pavements do not include key CRBM properties. In this paper an empirical-mechanistic method is used to study airfield pavement design with CRBM in order to develop design guidance. The aim of the paper is to obtain the inputs related to material properties needed for use in this method. For this purpose, CRBM containing reclaimed asphalt, with fly ash, cement and foamed bitumen as stabilising agents, was characterised. The methodology included indirect tensile stiffness modulus (ITSM) and indirect tensile fatigue tests (ITFT) in strain control mode. The inputs needed for a pavement design analysis with CRBM were then obtained. The results showed the importance of further study on CRBM fatigue to understand the behaviour of these mixes under cyclic loading.

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泡沫沥青冷再生沥青混合料的刚度和抗疲劳性能分析及其在机场路面设计中的应用

冷回收材料(crbm)为路面提供了经济和环境优势，因为它们减少了能源和原材料的消耗。然而，机场路面的设计方法不包括关键的CRBM特性。本文采用经验-力学方法对机场路面设计进行了研究，以期为设计提供指导。本文的目的是获得在这种方法中使用所需的与材料特性相关的输入。为此，对含有再生沥青、粉煤灰、水泥和泡沫沥青作为稳定剂的CRBM进行了表征。方法包括应变控制模式下的间接拉伸刚度模量(ITSM)和间接拉伸疲劳试验(ITFT)。然后获得了使用CRBM进行路面设计分析所需的输入。结果表明，进一步研究CRBM疲劳对了解这些混合料在循环载荷下的行为具有重要意义。

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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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