Applicability of Additives for Ground Improvement Utilizing Fine Powder of Waste Glass.
Applicability of Additives for Ground Improvement Utilizing Fine Powder of Waste Glass.
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DOI：
10.3390/ma14185169
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发表时间：
2021-09-09
期刊：
影响因子：
--
通讯作者：
Chaiprakaikeow S
中科院分区：
文献类型：
--
作者：
Inazumi S;Hashimoto R;Shinsaka T;Nontananandh S;Chaiprakaikeow S
作为使用无机废物作为原料的地基改良的固化材料，作者已经开发了一种添加剂混合物，该添加剂混合物是含有大量在玻璃碎片生产过程中产生的二氧化硅的废玻璃细粉和碱性助剂（热处理型“Earth-Silica; ES”添加剂）。此外，还正在开发通过将该添加剂与作为钢铁生产的副产品的高炉矿渣的细粉混合而固化的固化材料。本文综述了固化材料的混合工艺，特别是采用热处理型ES添加剂，省去了废玻璃细粉和碱助剂的热处理，仅采用混合处理的固化材料。因此，制造了混合型ES添加剂以简化制造过程，并且根据对固化作用的影响，验证了取决于增材制造期间热处理过程的存在或不存在的固化材料的性能差异。具体地，将分别添加了热处理型ES添加剂和混合型ES添加剂的固化材料应用于作为地基改良方法之一的高压喷射搅拌法。各种试验阐明了这些固化材料的粘度随时间的变化以及当分别加入普通波特兰水泥时它们的固化速率的加速。
As a solidifying material for ground improvement using inorganic waste as a raw material, the authors have been developing an additive mixture of the fine powder of waste glass containing a large amount of silica generated during the production of glass cullet and an alkaline aid (heat-treating type of “Earth-Silica; ES” additive). Furthermore, a solidifying material that solidifies by mixing this additive with the fine powder of blast furnace slag, which is a by-product of steel production, is also being developed. In this study, the authors reviewed the mixing process of the solidified materials, especially the one made with the heat-treating type of ES additive, omitting the heat treatment of the fine powder of waste glass and the alkaline aid and applying only the mixing treatment. As a result, a mixing type of ES additive was manufactured to simplify the manufacturing process, and the difference in the performance of the solidifying material, depending on the presence or absence of the heat-treating process during the additive manufacturing, was verified in terms of the effect on the solidifying action. Specifically, the solidifying materials to which the heat-treating type of ES additive and the mixing type of ES additive were added, respectively, were applied to the high-pressure injection stirring method, one of the ground-improvement methods. Various tests clarified the changes in viscosity of these solidifying materials over time and the acceleration of their solidifying rates when adding ordinary Portland cement separately.
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