Development of Geopolymer Cement

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K14066
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Building structures/Materials
• Research Institution: Yamaguchi University
• Principal Investigator: Li Zhughuo 山口大学, 大学院創成科学研究科, 教授 (50432737)
• Co-Investigator(Kenkyū-buntansha): 坂本 英輔 広島工業大学, 工学部, 准教授 (40583539)
• Research Collaborator: 池田 攻 山口大学, 名誉教授 ; 谷川 恭雄 名古屋大学, 名誉教授
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ジオポリマー / セメント / 仮焼き / 緑泥石 / 砕石粉 / 遅延剤 / フライアッシュ / 高炉スラグ微粉末

Outline of Final Research Achievements

In this study, chlorite and iron ore were calcined at 700 ~ 1000 ℃, and the production of geopolymer cement (GC) using the gcalcination fine powders was firstly attempted. The reactivity of GC using any of the calcined fine powders alone is inferior and blending of ground granulated　blast furnace slag (BFS) is necessary. If ｍixing 40% BFS, it possible to produce GC with compressive strength of more than 45 MPa. Next, GC using crushed stone powder, which is waste of crushed stone factory, was examined. It was clarified that GC with compressive strength of 60 MPa and flexural strength of 10 MPa or more can be produced by mixing BFS. In addition, we developed a retarder with main ingredient of tartrate to prolong the handling time of GC using fly ash and BFS in combination, and investigated various performances of concrete utilizing fly ash & BFS based GC.

Free Research Field

建築材料