Applicability of mixed solidification material based on inorganic waste as soil stabilizer
Applicability of mixed solidification material based on inorganic waste as soil stabilizer
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DOI：
10.1016/j.cscm.2019.e00305
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发表时间：
2020-06-01
影响因子：
6.2
通讯作者：
Shinsaka, Takashi
中科院分区：
文献类型：
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作者：
Inazumi, Shinya;Intui, Sutasinee;Shinsaka, Takashi
本研究的目的是减少高炉矿渣和废弃玻璃等废物的产生量并对其进行有效利用，同时防止自然资源枯竭并减少最终垃圾填埋场的处置量。因此，通过对包含二氧化硅成分(例如废弃玻璃和粉煤灰)以及碱助剂的无机废料进行热处理而制成的粉末二氧化硅混合物受到关注。看来，使用与高炉粉混合的二氧化硅外加剂会是有效的，并且与水泥凝固材料相比，二氧化硅外加剂和磨碎的粒状高炉矿渣的混合固化材料预计会表现出较高的强度和各种特性的优越性。然而，粉状二氧化硅外加剂的硬化机理仍不清楚。本文通过室内混合试验、X射线衍射分析和高频电感耦合等离子体分析，研究了混合凝固材料的机械、化学和矿物的硬化机理和特殊特性。室内混合试验结果清楚地表明，混合固化材料具有优异的改良基流动性、延迟硬化性能和强度特性。 (C) 2019 年作者。由爱思唯尔有限公司出版
The purpose of this research is to reduce the amount of waste material in the form of blast furnace slag and discarded glass produced and effectively utilize it while preventing the exhaustion of natural resources and reducing the amount disposed of in final landfill sites. Therefore a powdered silica admixture made through heat treatment of inorganic waste material including silica components such as discarded glass and fly ash as well as an alkali aid has been focused. It seems that using silica admixture mixed with blast furnace powder would be effective, and the mixed solidification material with silica admixture and ground granulated blast furnace slag a high manifestation of strength and superiority in various characteristics compared to cement solidification material is expected. However the hardening mechanism of powdered silica admixture remains unclear. In this paper the hardening mechanism and special characteristics of mixed solidification materials mechanically, chemically, and minerally are investigated via indoor mixing tests, X-Ray diffraction analysis, and high-frequency inductively coupled plasma analysis. The results of the indoor mixing test showed clearly that the mixed solidification material had superior liquidity of improvement base, hardening delay performance, and strength characteristics. (C) 2019 The Authors. Published by Elsevier Ltd.