|
Abstract
|
Article Information:
Concrete Deterioration under Alternate Action of Carbonation and Sulfate Attack
Fenglan Li, Changyong Li, Shunbo Zhao and Changcheng Shi
Corresponding Author: Fenglan Li
Submitted: December 31, 2012
Accepted: January 31, 2013
Published: November 10, 2013 |
Abstract:
|
By micro- and macro-observations, the study reveals the deterioration mechanisms of concrete under alternate action of carbonation and sodium sulfate solution attack (C-SA) comparied with the single sodium sulfate solution attack (SA). The studies indicate that in both cases, the main attack product is ettringite, some gypsum is checked only in the first layer of case SA, the thaumasite form of sulfate attack is not initiated in case C-SA. Compared with the single sodium sulfate solution attack, although the carbonation layer mitigates the extent of sulfate attack in limited exposure period, the alternate action of carbonation and sulfate attack still leads to strength degradation to some extent. The effect of carbonation on sulfate attack for longer exposure period deserves further research.
Key words: Attack product, concrete, carbonation, strength, sulfate, sulfate-ion content,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
Fenglan Li, Changyong Li, Shunbo Zhao and Changcheng Shi, . Concrete Deterioration under Alternate Action of Carbonation and Sulfate Attack. Research Journal of Applied Sciences, Engineering and Technology, (20): 3736-3740.
|
|
|
|
 |
ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
