<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The influence of the shape of coarse aggregate on the properties of fresh concrete mixes, and the strength of high-performance self-compacting concrete (HPSCC) is important issue. In this study, irregular and regular grains were separated from the basalt, porphyry and granite coarse aggregate. The shape of these grains was determining using digital image analysis and was in accordance with the European Standard [19]. The aspect ratio (AR) and roundness (R) were ascertained in order to highlight the differences in the coarse aggregate shape used the design HPSCC. The study indicates that using the same crushing system, varied parameters of the shape of coarse aggregates were obtained. It was determined that the best fitting distribution for aspect ratio and roundness at a 95% confidence level is the generalised extreme value distribution.</p></abstract>

The influence of the shape of coarse aggregate on the properties of fresh concrete mixes, and the strength of high-performance self-compacting concrete (HPSCC) is important issue. In this study, irregular and regular grains were separated from the basalt, porphyry and granite coarse aggregate. The shape of these grains was determining using digital image analysis and was in accordance with the European Standard [19]. The aspect ratio (AR) and roundness (R) were ascertained in order to highlight the differences in the coarse aggregate shape used the design HPSCC. The study indicates that using the same crushing system, varied parameters of the shape of coarse aggregates were obtained. It was determined that the best fitting distribution for aspect ratio and roundness at a 95% confidence level is the generalised extreme value distribution.

Comparative Analysis of the Coarse Aggregate Shapes used to Manufacturing High Performance Self-Compacting Concrete

Technical Transactions

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The influence of the shape of coarse aggregate on the properties of fresh concrete mixes, and the strength of high-performance self-compacting concrete (HPSCC)...

Comparative Analysis of the Coarse Aggregate Shapes used to Manufacturing High Performance Self-Compacting Concrete

Publié en ligne: 21 mai 2020

Pages: 75 - 86

Reçu: 09 juil. 2018

DOI: https://doi.org/10.4467/2353737XCT.18.101.8796

Mots clés
coarse aggregate, shape, computer image analysis, self-compacting concrete

© 2020 Krzysztof Ostrowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Comparative Analysis of the Coarse Aggregate Shapes used to Manufacturing High Performance Self-Compacting Concrete

Publié en ligne: 21 mai 2020

Pages: 75 - 86

Reçu: 09 juil. 2018

DOI: https://doi.org/10.4467/2353737XCT.18.101.8796

Mots cléscoarse aggregate, shape, computer image analysis, self-compacting concrete

© 2020 Krzysztof Ostrowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Mots clés
coarse aggregate, shape, computer image analysis, self-compacting concrete