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.
| Original language | English |
|---|---|
| Pages (from-to) | 115-119 |
| Number of pages | 5 |
| Journal | Cement and Concrete Research |
| Volume | 33 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2003 |
Keywords
- Alkali-aggregate reaction
- Expansion
- Lithium compounds
- Long-term performance
- SEM