Accelerated Concrete Strength Testing by Modified Boiling Method: Concrete Producer’s View

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Title: Accelerated Concrete Strength Testing by Modified Boiling Method: Concrete Producer’s View

Author(s): R.A. Lapinas

Publication: Special Publication

Volume: 56

Issue:

Appears on pages(s): 75-94

Keywords: accelerated tests; acceptability; compressive strength; cylinders; quality control; ready-mixed concrete; regression analysis.

Date: 10/1/1978

Abstract:
Accelerated testing of concrete by means of boil-ing test cylinders and testing them at the age of 28 1/2 hours to predict the 28 day strength was used by ready-mixed con-crete producer's quality control laboratory for about two years. Over 300 accelerated tests were carried out indi-cating that 28 day strength can be predicted using this method within the accuracy of +12%. Continuous updating of the accelerated to 28 day strength relationship is neces-sary. The suitability of the method for day-to-day quality control purposes is evaluated.