Corrosion of reinforcement in concrete containing wet-stored fly ash
| Autor: | Michael J. McCarthy, P. A. J. Tittle, Ravindra K. Dhir |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Cement
Absorption of water Materials science Moisture Carbonation Metallurgy 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction engineering.material 0201 civil engineering Corrosion Slump Fly ash 021105 building & construction engineering General Materials Science Lime |
| Zdroj: | Cement and Concrete Composites. 102:71-83 |
| ISSN: | 0958-9465 |
| DOI: | 10.1016/j.cemconcomp.2019.03.003 |
| Popis: | The study described was concerned with moistened fly ash as a cement component in concrete and its influence on carbonation and chloride-induced corrosion. Five laboratory-moistened fly ashes (10% by mass) and samples from two power station stockpiles (moistened at 10–30% by mass) were examined, with several material/storage variables investigated. Initial tests quantified moisture effects, which indicate agglomeration of fly ash and a tendency for this to increase with free lime content, storage period and temperature. Concretes were compared at equal slump (75 mm) and 28 day (cube) strength. Air (intrinsic) permeability and water absorption were slightly greater (high free lime, 0.9%), or lower (low free lime |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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