Acknowledgement
This work was supported by Korea Environmental Industry and Technology Institute (KEITI) and funded by the Ministry of Environment (No. 20190027500031).
Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)
- 2021.11a
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- Pages.21-22
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- 2021
Use of waste glass as an aggregate in GGBS based alkali activated mortar
- Sasui, Sasui (Department of Architectural Engineering, Chungnam National University) ;
- Kim, Gyu Yong (Department of Architectural Engineering, Chungnam National University) ;
- Son, Min Jae (Department of Architectural Engineering, Chungnam National University) ;
- Pyeon, Su Jeong (Department of Architectural Engineering, Chungnam National University) ;
- Suh, Dong Kyun (Department of Architectural Engineering, Chungnam National University) ;
- Nam, Jeong Soo (Department of Architectural Engineering, Chungnam National University)
- Published : 2021.11.12
Abstract
This study incorporates fine waste glass (GS) as a replacement for natural sand (NS) in ground granulated blast furnace slag (GGBS) based alkali activated mortar (AAm). Tests were conducted on the AAm to determine the mechanical properties, apparent porosity and the durability based on its resistance to Na2SO4 5% and H2SO4 2% concentrated solutions. The study revealed that increasing GS up to 100 wt%, increased strength and decreased porosity. The lower porosity attained with the incorporation of GS, improved the resistance of mortar to Na2SO4 and thus increasing durability. However, the durability of mortar to H2SO4 solution was negatively impacted with the further reduction of porosity observed with increasing GS above 50 wt.% believed to be caused by the stress induced as a result of expansive reaction products created when the mortar reacted with acid.