Freeze-Thaw Deterioration Mechanism of Concrete in Different Multi-Aggressive Solution

Abstract:

Article Preview

Deterioration mechanism of concrete suffered slowly freeze-thaw and eroded in different mixed liquor (3%NaCl+5%NaSO4, 3%NaCl+1.5%NaSO4, 5%NaSO4, water) were experimental investigated. The hydration product and microstructure of concrete specimen after 100 circles of freeze-thaw was tested and analyzed with SEM (Scanning Electron Microscope). The result indicated that under the interactions of freeze-thaw and mixed erosive solution, there were not only physical changes but also chemical reactions occurred in concrete, which exacerbate the mechanical properties deterioration of concrete. The mechanical performance and microstructures of concrete deteriorated most significantly in the mixed solution 3%NaCl+5%NaSO4, and deteriorated more significantly in the mixed solution 3%NaCl+1.5%NaSO4.

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Edited by:

Lijuan Li

Pages:

1708-1713

DOI:

10.4028/www.scientific.net/AMR.163-167.1708

Citation:

X. N. Zheng et al., "Freeze-Thaw Deterioration Mechanism of Concrete in Different Multi-Aggressive Solution", Advanced Materials Research, Vols. 163-167, pp. 1708-1713, 2011

Online since:

December 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.