Functional Method of Designing Self-Compacting Concrete.

Materials (Basel)

Faculty of Civil Engineering and Geodesy, Military University of Technology in Warsaw, 2 Gen. S. Kaliskiego St., 01-476 Warsaw, Poland.

Published: January 2021

AI Article Synopsis

  • The article introduces a functional method for designing self-compacting concrete (SCC), based on the idea that coarse aggregate grains are coated with cement mortar and sand grains with cement paste.
  • The method consists of four stages, each focusing on selecting different components of the concrete mix while ensuring the mineral skeleton is volumetrically saturated to avoid blocking aggregate grains.
  • Experimental studies and mathematical simulations confirmed the theoretical assumptions behind this design method, proving its effectiveness and reliability in creating SCC.

Article Abstract

The article presents a new functional method of designing self-compacting concrete (SCC). The assumptions of the functional method of designing self-compacting concrete were based on the double coating assumption (i.e., it was assumed that the grains of coarse aggregate were coated with a layer of cement mortar, whereas the grains of sand with cement paste). The proposed method is composed of four stages, each of which is responsible for the selection of a different component of the concrete mix. The proposed designing procedure takes into consideration such a selection of the mineral skeleton in terms of the volumetric saturation of the mineral skeleton, which prevents the blocking of aggregate grains, and the designed liquid phase demonstrated high structural viscosity and low yield stress. The performed experimental studies, the simulation of the elaborated mathematical model fully allowed for the verification of the theoretical assumptions that are the basis for the development of the method of designing self-compacting concrete.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825763PMC
http://dx.doi.org/10.3390/ma14020267DOI Listing

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