Concrete Manual Tests: Verification of Water in Fresh Concrete by Use of a Microwave Oven Mobile App

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  VERIFICATION OF WATER IN FRESH CONCRETE BY USE OF A MICROWAVE OVEN

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  Mn/DOT has incorporated the use of AASHTO TP23-93 to verify the Contractor’s water in concrete pa...

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  Knowing the weight of the fresh concrete and the weight of the dried concrete, the total water co...

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  There are many variables in this procedure.

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  Moisture tests and microwave oven testing are performed by the Agency.

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  A.

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  B.

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  For determination of water/cementitious ratio incentive/disincentive, a lot represents one day of...

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  Paving includes integrant curb and gutter and curb and gutter placed with the same mixture as pav...

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  A change in mix design requires beginning a new lot.

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  Changes in mix design for small quantities such as hand work and high early mixes greater than 35...

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  All samples for testing are taken in a random manner according to the prescribed sampling rate.

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  A minimum of 2 tests and a maximum of 4 tests are required per day.

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  Gradation testing is not required when production is less than 250 cubic meters (cubic yards) per...

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  If less than 3 sublots are produced in a day before the new mix design is initiated, the sublots ...

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  On the first day of production or whenever the mix design is changed prior to the production of 3...

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  On the last day of paving or on the last day of using a specific mix design, the concrete involve...

• ...and More!