Application of residues produced by recovery of rare metals to safe construction materials

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14010
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Tohoku University
• Principal Investigator: HISADA Makoto 東北大学, 工学研究科, 教授 (80238295)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: レアメタル残渣 / 太陽光モジュールガラス / 混合材 / リサイクル

Outline of Final Research Achievements

This study focused on a solar module glass which is one of residues produced by recovery of rare metals. A main component of the solar module glass contains amorphous silica. Therefore, this study evaluated the compressive strength, which is the most important property of concrete, when using crushed solar module glass as a mineral admixture. As a result, it was confirmed that the compressive strength can be secured in case of mixing the crushed glass up to 5% of replacement ratio to cement. However, the compressive strength decreases when mixing the crushed glass of 10% of replacement ratio to cement.

Free Research Field

コンクリート工学