University of Seville, School of Industrial Engineering, Department of Chemical and Environmental Engineering, Camino de los Descubrimientos s/n, E-41092 Seville, Spain.
Waste Manag. 2013 Nov;33(11):2316-21. doi: 10.1016/j.wasman.2013.07.008. Epub 2013 Aug 2.
The present study aims to determine and evaluate the applicability of a new product consisting of coal bottom ash mixed with Portland cement in the application of highway noise barriers. In order to effectively recycle the bottom ash, the influence of the grain particle size of bottom ash, the thickness of the panel and the combination of different layers with various particle sizes have been studied, as well as some environmental properties including leachability (EN-12457-4, NEN-7345) and radioactivity tests. Based on the obtained results, the acoustic properties of the final composite material were similar or even better than those found in porous concrete used for the same application. According to this study, the material produced presented no environmental risk.
本研究旨在确定和评估一种由煤底灰与波特兰水泥混合而成的新产品在公路隔音屏障应用中的适用性。为了有效地回收底灰，研究了底灰的颗粒粒径、面板厚度以及不同粒径的不同层组合的影响，以及一些环境特性，包括浸出性（EN-12457-4、NEN-7345）和放射性测试。基于所获得的结果，最终复合材料的声学性能与用于相同应用的多孔混凝土相似，甚至更好。根据这项研究，所生产的材料没有环境风险。
