| Autor: |
Xian Xiao Peng, Feng Ming Sun, Jun Jie Zhou, Gu Hua Li, Jing Wang, Jun Peng Zhang |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Advanced Materials Research. :1715-1720 |
| ISSN: |
1662-8985 |
| DOI: |
10.4028/www.scientific.net/amr.671-674.1715 |
| Popis: |
Test the alkali-silica reactivity of slate aggregate in Guizhou using mortar-bar method in JTG E42-2005of China and accelerated mortar-bar method in TB/T2922.5-2002 of China. The results show that the six months expansion is 0.11% with mortar-bar method, the aggregate has low alkali activity. The 14-days expansion exceeds 0.30% with accelerated mortar-bar method, according to the TB10005-2010, the aggregate has high alkali reactivity. Obviously, the accelerated mortar-bar method is safer than the mortar-bar method, but the test parameters and test conditions of accelerated mortar-bar method have some differences with the aggregate physical environments. According to the accelerated mortar bar method, the thesis proposes an improved test method for evaluating the alkali-silica reactivity of slate aggregate. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
