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- W2899964083 abstract "The quality of in-situ concrete is partly dependent upon the temperature and exposure conditions where the concrete is placed. Incorporation of cement replacements such as Pulverised Fuel Ash (PFA) and Ground Granulated Blast Furnace Slag (GGBS) may be beneficial from economic and environmental sustainability perspectives, due to industry by-products utilisation. Their potential benefits towards concrete properties are becoming expected, such that countries like Brunei Darussalam, which do not locally produce these by-products, are now importing and incorporating them. A study is done investigating neat and blended concrete systems exposed to 20°C standard and 38°C elevated temperatures. Properties compared include consistencies (workabilities), compressive strengths and heat evolutions. The same concreting materials were used throughout to reduce discrepancies from different batches. Backscattered electron (BSE) micrographs of the concrete systems supported findings. For the range of systems studied, the findings include elevated temperature mixes having lower consistencies and late-age strengths, and higher early-age strengths and heat evolutions compared to standard temperature mixes, irrespective of cement replacement. Blended concrete mixes had higher consistencies, lower heat evolutions and lower early age strengths, and in general did not exceed the late age strengths when compared to the corresponding neat concrete mixes." @default.
- W2899964083 created "2018-11-16" @default.
- W2899964083 creator A5007190302 @default.
- W2899964083 date "2018-11-08" @default.
- W2899964083 modified "2023-09-25" @default.
- W2899964083 title "Properties of Neat and Blended Concrete Systems Exposed to Standard 20C and Elevated 38C Temperature Conditions" @default.
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- W2899964083 doi "https://doi.org/10.1088/1757-899x/431/5/052002" @default.
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