Effects of corrosion inhibiting admixtures and supplementary cementitious materials combinations on the strength and certain durability properties of HPC
| Autor: | Herwing Zeth López-Calvo, Elia Mercedes Alonso Guzmán, Michael D.A. Thomas, Theodore W. Bremner, Wilfrido Martínez Molina, Pedro Montes-García |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Silica fume 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Durability 0201 civil engineering Corrosion law.invention Portland cement chemistry.chemical_compound Compressive strength chemistry law Fly ash 021105 building & construction Cementitious Calcium nitrite Composite material General Environmental Science Civil and Structural Engineering |
| Zdroj: | Canadian Journal of Civil Engineering. 44:918-926 |
| ISSN: | 1208-6029 0315-1468 |
| DOI: | 10.1139/cjce-2016-0237 |
| Popis: | This paper reports a study carried out to evaluate the effects of corrosion inhibiting admixtures, calcium nitrite and disodium tetrapropenyl succinate, in combination with supplementary cementitious materials, fly ash and silica fume Portland cement, on the compressive strength and certain durability properties of high performance concrete. Mixture formulations, including binary and ternary combinations of these admixtures were evaluated. Chloride profiles after 91 and 365 days of exposure and the compressive strength and electrical resistivity at 1, 7, 14, 28, 180, and 365 days of age were estimated. Also, results of corrosion evaluation after five-year exposure to a natural marine environment at Treat Island Maine, USA are presented and discussed. Results indicate that the use of corrosion inhibitors in combination with supplementary cementitious materials was beneficial, albeit to various degrees, in enhancing the strength and durability properties of high performance concrete with no noticeable adverse effects. |
| Databáze: | OpenAIRE |
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