A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Durability of self-consolidating concrete to combined effects of sulphate attack and frost action
Abstract The worldwide shift towards performance-based standards for concrete demands the advent of performance tests that combine more than one damage mechanism. Such tests can be more reliable in evaluating emerging concrete types such as self-consolidating concrete (SCC). Several applications of SCC involve its exposure to both freezing–thawing cycles and chemical attack, particularly to sulphate-rich media. This study aims at investigating the durability of SCC to sulphate attack coupled with frost action. Potential performance risks of SCC under this dual exposure were identified in terms of various mixture design parameters. Deterioration in physico-mechanical parameters was related to thermal, mineralogical and microscopy analyses, which demonstrated the complex mutual effects of sulphate attack and frost action on SCC specimens. It is shown that SCC mixtures that perform well under the classical ASTM C 1012 test can fail under coupled exposure to freezing–thawing cycles and sulphate attack.
Durability of self-consolidating concrete to combined effects of sulphate attack and frost action
Abstract The worldwide shift towards performance-based standards for concrete demands the advent of performance tests that combine more than one damage mechanism. Such tests can be more reliable in evaluating emerging concrete types such as self-consolidating concrete (SCC). Several applications of SCC involve its exposure to both freezing–thawing cycles and chemical attack, particularly to sulphate-rich media. This study aims at investigating the durability of SCC to sulphate attack coupled with frost action. Potential performance risks of SCC under this dual exposure were identified in terms of various mixture design parameters. Deterioration in physico-mechanical parameters was related to thermal, mineralogical and microscopy analyses, which demonstrated the complex mutual effects of sulphate attack and frost action on SCC specimens. It is shown that SCC mixtures that perform well under the classical ASTM C 1012 test can fail under coupled exposure to freezing–thawing cycles and sulphate attack.
Durability of self-consolidating concrete to combined effects of sulphate attack and frost action
Nehdi, M. L. (author) / Bassuoni, M. T. (author)
Materials and Structures ; 41 ; 1657-1679
2008-01-22
23 pages
Article (Journal)
Electronic Resource
English
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