Concrete Manual Tests: Verification of Water in Fresh Concrete by Use of a Microwave Oven
DOT has incorporated the use of AASHTO TP23-93 to verify the Contractor’s water in concrete pavements.
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This test uses a microwave oven to drive the water out of fresh concrete. Mn/DOT has an incentive/disincentive program for the water-cementitious (w/c) ratio. This incentive is based on the Contractor’s actual batch weights and is verified using the microwave. Use the Concrete Manual Tests: Verification of Water in Fresh Concrete by Use of a Microwave Oven mobile app to complete this verification process.
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