ACI Concrete Field Testing Technician Grade 1 fully solved 2024

ACI Concrete Field Testing Technician Grade 1 Collecting a representative sample of concrete to be tested is as important as executing the test methods to obtain - correct answer accurate results This practice covers sampling from 4 types of equipment: - correct answer stationary, paving, revolving truck, continuous The elapsed time between obtaining the first and final portions of a composite sample shall not exceed - correct answer 15 minutes Portions of a composite sample shall be thoroughly remixed before beginning tests on the sample. True or False? - correct answer True Start tests for slump, temperature, and air content within _____ after obtaining the final portion of the composite sample - correct answer 5 minutes Start molding specimens for strength tests within _______ after fabricating the composite sample - correct answer 15 minutes The concrete sample must be protected from contamination and - correct answer evaporation the minimum size sample for making strength test specimens is - correct answer 1 cubic foot When sampling from a stationary mixer, the batch must be sampled at ____ or more regularly spaced intervals during discharge of the middle portion of the batch. - correct answer two