Development of Rapid-Setting Repair Materials Through One-Part Geopolymer Technology

Wei Hao Lee*, Ying Kuan Tsai, Chien Chin Chen, De Wei Gao

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

The development of geopolymer materials has been over 35 years. Compared with ordinary portland cement (OPC), geopolymer materials have many excellent properties such as high-early strength, nice durability, low carbon emission…etc. Therefore, geopolymer materials have great potential to replace OPC. In particular, geopolymer’s high early strength characteristics are very suitable as repair materials. However, the traditional geopolymer manufacturing process is mixed alkaline solution and aluminosilicate materials. The transportation and storage of alkaline solution will cause a significant burden on the factory, limiting the application and market willingness of geopolymer material. This study focuses on using solid-state activator to develop one-part geopolymer, which is “only adding water” to produce geopolymer. This study will try to develop [Rapid-setting repair geopolymer paste] and [Rapid-setting repair geopolymer mortar] and discuss the effect of solid activator dosage amount, type of solid activator, and solid activator fineness on the mechanical and workability properties of geopolymer materials. According to the experiment results, after curing for 2h, the compressive strength of [Rapid-setting repair geopolymer paste] can reach over 30 MPa, and the compressive strength can reach 100 Mpa after curing for 28 days. The compressive and flexural strength of [Rapid-setting repair geopolymer mortar] can reach over 60 and 10MPa, after curing for the day. The shrinkage rate can be controlled at lower than 0.1%. This study succeeded in developing a suitable repair material using one-part geopolymer technology. It is hoped that the practical application can be carried out after more testing in the future.

原文English
主出版物標題Proceedings of the 3rd International Civil Engineering and Architecture Conference - CEAC 2023
編輯Marco Casini
發行者Springer Science and Business Media Deutschland GmbH
頁面145-156
頁數12
ISBN(列印)9789819963676
DOIs
出版狀態Published - 2024
事件3rd International Civil Engineering and Architecture Conference, CEAC 2023 - Kyoto, 日本
持續時間: 17 3月 202320 3月 2023

出版系列

名字Lecture Notes in Civil Engineering
389
ISSN(列印)2366-2557
ISSN(電子)2366-2565

Conference

Conference3rd International Civil Engineering and Architecture Conference, CEAC 2023
國家/地區日本
城市Kyoto
期間17/03/2320/03/23

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