Warm mix asphalt: an overview
Warm mix asphalt: an overview
复制标题
DOI：
10.1016/j.jclepro.2011.11.053
复制
发表时间：
2012-03-01
影响因子：
11.1
通讯作者：
Moreno, Fernando
中科院分区：
文献类型：
--
作者：
Carmen Rubio, M.;Martinez, German;Moreno, Fernando
与运输基础设施建设有关的污染原因之一是向大气中排放温室气体。尽管温拌沥青混合料技术的使用具有许多与减少气体排放无关的优点，但WMA技术也对环境有利，因为与热拌沥青混合料相比，它在低20 - 40度的温度下生产沥青。WMA实现的温度降低来自于近年来开发的各种技术的使用，这些技术可分为以下三组：有机添加剂，化学添加剂和水基或含水发泡工艺。虽然他们都追求相同的目标，但制造过程不同。因此，他们的目标主要是降低沥青粘度，从而改善混合料的可加工性，产生更少的排放物，并通常创造更好的工作条件。本文概述了WMA制造中使用的不同技术。分析了该技术制备沥青的原材料、添加剂、配合比设计及路用性能。它还描述了它的优点和缺点，并强调了在该领域进一步研究的必要性。(C)2011爱思唯尔有限公司版权所有。
One of the causes of pollution associated with the construction of transportation infrastructures is the emission of greenhouse gases into the atmosphere. Even though the use of Warm Mix Asphalt technology has many advantages that are not related to the reduction of gas emissions, WMA technology is also good for the environment because it produces asphalt at temperatures 20-40 degrees lower in comparison to Hot Mix Asphalt. The temperature reduction achieved by WMA comes from the use of various technologies that have been developed in recent years, and which can be classified in the following three groups: organic additives, chemical additives, and water-based or water-containing foaming processes. Although all of them pursue the same goal, the manufacturing process differs. Thus, their aim is mainly to reduce bitumen viscosity, which in turn improves mix workability, produces fewer emissions, and generally creates better working conditions. This paper is an overview of the different technologies used in the manufacturing of WMA. It analyzes the materials, additives, mix design and performance of the asphalt made by this technology. It also describes its benefits and drawbacks, and underlines the need for further research in this area. (C) 2011 Elsevier Ltd. All rights reserved.