Staff Members - Benha University
“ISAT Prediction of Concrete Durability”, The British Institute of NDT, International Conference "NDT In Civil Engineering" (ed. J.H. Bungey), Liverpool, 14-16 April 1993, pp. 301-314
International Conference "NDT In Civil Engineering" • 1993
Publication Information
Authors
Dhir, R. K., Byars, E. A., Chan, Y. N., and Shaaban, I. G.
Keywords
Durability; absorption; freeze-thaw; carbonation; chloride diffusion; workability; PFA; chloride diffusion
Journal
International Conference "NDT In Civil Engineering"
Publisher
The British Institute of NDT, (ed. J.H. Bungey), Liverpool
Volume
14-16 April 1993
Issue
Not Available
Pages
pp. 301-314
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
This paper deals with the assessment of durability potential of concrete by measurement of it's absorption properties. The durability aspects covered were freeze-thaw, carbonation; chloride diffusion and abrasion. The test method for determining the absorptivity was the Initial Surface Absorption Test (ISAT), used essentially as defined in BS 1881, but with several modifications to enhance it's application as a laboratory test.
The results from accelerated carbonation, freeze-thaw attack, abrasion and chloride diffusion tests are plotted against those of the ISAT, and basic statistical analyses performed to ascertain the certainty with which these aspects of durability may be predicted from the absorption. The results obtained from different concrete types, including varying grade, workability and maximum aggregate sizes and the effect of curing are considered. In addition, the effect of PFA on co-efficient of chloride diffusion rate is discussed.
The results from accelerated carbonation, freeze-thaw attack, abrasion and chloride diffusion tests are plotted against those of the ISAT, and basic statistical analyses performed to ascertain the certainty with which these aspects of durability may be predicted from the absorption. The results obtained from different concrete types, including varying grade, workability and maximum aggregate sizes and the effect of curing are considered. In addition, the effect of PFA on co-efficient of chloride diffusion rate is discussed.