|
|||||
|
|
Long-term effectiveness and mechanism of LiOH in inhibiting alkali-silica reaction |
|
| Authors: | Xiangyin Mo Chenjie Yu |
| Affiliation: | a Analysis and Test Central and Materials Science Laboratory, Nanjing Normal University, 122 Ninghai Road, Nanjing 210097, Jiangsu, PR China b College of Materials Science and Engineering, Tongji University, Shanghai 200092, PR China c College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, PR China |
| Abstract: | A practical alkali reactive aggregate-Beijing aggregate was used to test the long-term effectiveness of LiOH in inhibiting alkali-aggregate reaction (AAR) expansion. In this paper, the most rigorous conditions were so designed that the mortar bars had been cured at 80 °C for 3 years after being autoclaved for 24 h at 150 °C. At this condition, LiOH was able to inhibit long-term alkali-silica reaction (ASR) expansion effectively. Not only was the relationship between molar ratio of n(Li)/n(Na) and the alkali contents in systems established, but also the governing mechanism of such effects was studied by SEM. |
| Keywords: | Lithium compounds Alkali-aggregate reaction Expansion Long-term performance SEM |
| 本文献已被 ScienceDirect 等数据库收录！ | |