Concrete and Earthquake Engineering Research Group

Department of Civil & Structural Engineering

The effect of chloride on performance of cement mortars subjected to sulfate exposure at low temperature

Authors

Abdalkader AHM, Lynsdale CJ, Cripps JC
Group members: 

Abstract

The effect of chloride on performance of cement mortars made with CEMI and CEMI blended with 10% limestone filler and subjected to sulfate attack was investigated. The performance of the specimens was assessed by means of visual inspection and loss of mass. In addition, the mineralogy of the deterioration products was determined by infra-red spectroscopy and X-ray diffraction. Mortar made with CEMI blended with 10%LF showed higher deterioration rate than that made with CEMI. It was also found that at the concentration used in this study, chloride accelerates the development of thaumasite resulting in marked deterioration to the specimens at 5?C. This is contrary to reported favorable effects of chloride in mitigating sulfate attack at higher temperatures.

Publication details

Year: 
2013
Publication type: 
Conference
Awarded by: 
Third International Conference on Sustainable Construction Materials and Technologies, SCMT3
Editors: 
Claisse PA, Miyagawa T, Naik TR
Awarded date: 
18/08/2013
Issue: 
200 GSP
Start page: 
Paper no. M3-9 2
Location: 
Kyoto, Japan