Optimization Study and Damage Evaluation in Concrete Mixtures Exposed to Slow Freeze–Thaw Cycles
| Autor: | Cafer Çelik, Remzi Şahin, Mehmet Ali Tasdemir, Rüstem Gül |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Cement
Water–cement ratio Materials science 0211 other engineering and technologies 02 engineering and technology Building and Construction Freeze and thaw 021001 nanoscience & nanotechnology Taguchi methods Mechanics of Materials 021105 building & construction Length change General Materials Science Geotechnical engineering Air entrainment Moisture Damage Composite material 0210 nano-technology Curing (chemistry) Civil and Structural Engineering |
| Zdroj: | Journal of Materials in Civil Engineering. 19:609-615 |
| ISSN: | 1943-5533 0899-1561 |
| Popis: | This paper presents an application of an optimization based on the Taguchi method for analyzing the deterioration of concrete with different compositions due to freezing and thawing. Effects of four parameters, i.e., water–cement ratio, cement content, amount of air-entrainment, and curing conditions, on the freeze–thaw resistance of concrete were investigated. The deterioration in concrete during the repeated freeze–thaw cycles were quantitatively evaluated in the light of the experimental measurements taken on length changes. It can be concluded that, within the limits of this work, the most important parameter affecting the freezing resistance of the concrete is the air-entraining admixture (AEA). Non-air-entrained concretes were severely damaged exhibiting substantial scaling after a limited number of freeze–thaw cycles. Damage increases significantly after around 1.5% residual length change (expansion) occurs in the specimens without AEA. |
| Databáze: | OpenAIRE |
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