Temperature rise inside pastes during hydration in hot climates
✍ Scribed by A.M. Alshamshi
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 450 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0008-8846
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✦ Synopsis
This paper examines the influence of 30% fly ash and 60% ground granulated blast-furnace slag (ggbs) as partial cement replacement materials on temperature evolution during hydration at three different ambient temperatures as follows: 20°C, 35~ and 4ffC. The apparatus was designed to allow for dissipation of heat from one side simulating that of the outer layer of concrete members. Evolution of temperature inside the paste was recorded with the aid of a chart recorded. Water-cement ratio was kept constant for all pastes. Results indicate that the higher the ambient temperature the faster the hydration rates. Fly ash or ggbs reduced the effects of high ambient temperatures by lowering the temperatures of the pastes during hydration when compared to plain OPC. This effect was more pronounced in the case of ggbs than in the case of fly ash.