This form should be used by approved producers to indicate results of tests and final design mixtures for strength of controlled concrete. This Technical Report must be filed prior to permit issuance in accordance with the New York City Building Code, Chapter 19, Concrete. Trial mixture reports and/or field experiment results must be attached when submitting the TR3P. As a reminder, additional TR3P reports should be submitted as needed for additional trial mixes. TR3P Form - Rev. 2/15
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