University of Transport Technology, Viet Nam.
Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux, France.
Waste Manag. 2018 Oct;80:168-174. doi: 10.1016/j.wasman.2018.09.007. Epub 2018 Sep 10.
Municipal Solid Waste Incinerator (MSWI) Bottom Ash has been used as a substitute for traditional aggregates in road construction; however, this material is little understood. The work presented in this paper pursues the study on the mechanical performance of bottom ash, proven by Le et al. (2017). Using a coupling technique for the first time, the physicochemical aspects and hydromechanical resistance of bottom ash were evaluated and analyzed. Physicochemical tests were first carried out, followed by oedometer tests under a wetting path. This coupled evaluation underlined the role of principal mineralogical components of the studied bottom ash as well as the link with its hydromechanical properties. Tests results showed that the principal constituent of bottom ash is SiO, which thus affects the characteristics of bottom ash. Given the physical stability of SiO which generated a compacted material being less sensitive to water and chemical reactions, and bottom ash's other characteristics, this demonstrates why bottom ash could be a viable material in roadworks.
城市固体废物焚烧炉（MSWI）底灰已被用作道路建设中传统集料的替代品；然而，这种材料的了解甚少。本文介绍了 Le 等人（2017 年）所进行的关于底灰力学性能的研究。本文首次采用耦合技术，对底灰的物理化学性质和抗水力阻力进行了评价和分析。首先进行了物理化学测试，然后在湿化路径下进行了压缩仪测试。这种耦合评价强调了研究中底灰主要矿物成分的作用及其与水力学性能的联系。测试结果表明，底灰的主要成分为 SiO，这影响了底灰的特性。由于 SiO 的物理稳定性，生成的压实材料对水和化学反应的敏感性较低，以及底灰的其他特性，这证明了为什么底灰可以成为道路工程中一种可行的材料。
