What is the method used to measure the yield of concrete?

Prepare for the NICET Construction Materials Testing Concrete Level I Test. Engage with interactive flashcards and multiple choice questions, complete with hints and explanations. Ensure success on your exam!

The method used to measure the yield of concrete is determined by assessing the volume of concrete produced against the quantities of ingredients used. This approach allows for an evaluation of how effectively the ingredients—such as cement, aggregates, water, and any admixtures—are combined to produce the final concrete mix. Yield measurement is crucial in ensuring that the right proportions are maintained, which affects the concrete’s strength and performance.

By calculating yield in relation to the input materials, you can ensure that the mix design is being correctly followed and that no discrepancies exist between expected and actual outputs. This practice is fundamental in concrete production because it supports quality control, helps with cost estimation, and ensures the appropriate mix design is consistently achieved.

Other methods, while useful in other contexts, do not directly measure yield. Applying a load to a cube sample until failure assesses the compressive strength of cured concrete rather than yield. Calculating the weight of the delivered mix may offer insights into density or batching accuracy but does not directly evaluate yield relative to the input quantities. Lastly, using a moisture meter on fresh concrete mainly measures moisture content rather than providing information about concrete yield.

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