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Heading: Plastic Shrinkage Cracking Reduction Test
If testing for plastic shrinkage cracking (ICC-ES AC 32 test method 4.5) in a laboratory controlled environment (temp., humidity, air velocity over test moulds) with and without concrete fiber, would you expect more or less plastic shrinkage cracks using a higher w/c ratio such as 0.60 than a w/c ratio of 0.50 (assuming a standard concrete mix design of 4000 psi)?

Mike DeWeese
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