A method and system for a concrete full aggregate synthetic gradation

Abstract

The present disclosure belongs to the technical field of concrete mix design, and particularly relates to a method and system for synthesizing the gradation of concrete full aggregate. The method comprises repeating the following steps: obtaining a first sample and a second sample; performing a sieve test and proportional mixing on the gravel in the first sample to obtain continuous particle size gravel cumulative sieve residue data, and performing a sieve test on the sand in the second sample to obtain sand cumulative sieve residue data; obtaining full aggregate and performing gradation data fitting to obtain the passing rate of the full aggregate; the full aggregate is composed of sand and gravel; and a particle size distribution curve is drawn according to the passing rate of the full aggregate to obtain a coefficient of uniformity and a curvature coefficient. The present disclosure introduces the coefficient of uniformity, the curvature coefficient and the characteristic parameters of the gradation equation into the control of the gradation of the full aggregate of concrete, uses the parameters as indexes for quantitatively judging the advantages and disadvantages of the synthesized gradation of the full aggregate, increases the evaluation dimension, and makes the control of the synthesized gradation of the full aggregate more standardized and scientific.

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