The Influence of the Quality of Coarse Aggregate on the Uniformity of the Properties of Concrete Mixture and Concrete

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Abstract

Industrial studies of the quality indicators of concrete mixtures (workability, water separation, mortar separation) and concretes (strength, uniformity of concrete in strength) have been carried out, depending on the characteristics of the filler used. The influence of fractionated and non-fractionated coarse aggregate on the properties of concrete mixtures and concretes was analyzed. It was confirmed that the use of fractionated coarse aggregate improves the quality indicators of concrete mixtures and concretes.

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About the authors

A. Yu. Kovaleva

Saint-Petersburg Petersburg State University of Architecture and Civil Engineering

Author for correspondence.
Email: kovalevaau@mail.ru

Candidate of Sciences (Engineering)

Russian Federation, 4, 2nd Krasnoarmeyskaya Street, Saint Petersburg 190005

I. U. Aubakirova

Saint-Petersburg Petersburg State University of Architecture and Civil Engineering

Email: centeririna@yndex.ru

Candidate of Sciences (Engineering)

Russian Federation, 4, 2nd Krasnoarmeyskaya Street, Saint Petersburg 190005

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Supplementary files

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2. Fig. 1. Placeholder seeding schedule

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3. Fig. 2. Distribution of concrete strength over the analyzed period

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