United States Department of Transportation
i
Comparison of Compressive Strengths Using 4x8 vs. 6x12 Cylinders for Prestress Concrete
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2004-03-01
[PDF-530.30 KB]
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Abstract:The purpose of this investigation was to develop a correlation between 4 by 8-in. and 6 by 12-in. cylinders for the same mix design at the same age using Class A-1 concrete (prestress concrete). With this correlation, prestress/precast companies can use smaller cylinders in prestress fabrication. This paper presents laboratory test results from three different concrete mix designs. The mixes differed mainly by the amount of cementitious material. The research conducted should provide prestress/precast companies reliable compressive strength acceptance data to ensure the concrete has reached its appropriate strengths.
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