Correlation between 28-day and 6-hour compressive strengths |
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| Authors: | P.J. Tumidajski B. Gong |
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| Affiliation: | a St. Lawrence Cement, 3300 Highway 7, 6th Floor, Concord, Ontario, Canada L4K 4M3
b Dufferin Concrete, Concord, Ontario, Canada L4K 4M3 |
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| Abstract: | Using commercially batched ready-mix concrete, a linear relationship was established for compressive strengths at 28 days (wet-cured) and 6 h (microwave-cured), log f28-day=1.31+0.35log f6-h. The relationship is important because the impact of concrete mix adjustments is quickly appreciated, reducing the frequency and financial severity of rework or litigation. |
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| Keywords: | Microwave processing Compressive strength Portland cement Granulated blast furnace slag Concrete |
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