A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates

The current study aims at proposing a novel and simple method for designing fluid concrete such as self-compacting concrete (SCC) with a low cementitious binder content to reduce the carbon footprint. Different testing methods regarding the packing density of aggregate mixtures are performed and com...

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Detalles Bibliográficos
Autores principales: Zhang, Ning, Zuo, Wenqiang, Xu, Wen, Song, Shenyou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560328/
https://www.ncbi.nlm.nih.gov/pubmed/32937941
http://dx.doi.org/10.3390/ma13184082
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author Zhang, Ning
Zuo, Wenqiang
Xu, Wen
Song, Shenyou
author_facet Zhang, Ning
Zuo, Wenqiang
Xu, Wen
Song, Shenyou
author_sort Zhang, Ning
collection PubMed
description The current study aims at proposing a novel and simple method for designing fluid concrete such as self-compacting concrete (SCC) with a low cementitious binder content to reduce the carbon footprint. Different testing methods regarding the packing density of aggregate mixtures are performed and compared. The W/C was determined according to the target compression strength. Slump flow spread is carried out to determine the most appropriate superplasticizer (SP) dosage and aggregate volume fractions and proportions in concrete mixtures. Furthermore, hardened performance, including compression strength and drying shrinkage of the fluid concrete, are characterized. Finally, a mix design process of fluid concrete with low cement content was proposed based on the preferred fresh and hardened properties of the concrete mixtures.
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spelling pubmed-75603282020-10-22 A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates Zhang, Ning Zuo, Wenqiang Xu, Wen Song, Shenyou Materials (Basel) Article The current study aims at proposing a novel and simple method for designing fluid concrete such as self-compacting concrete (SCC) with a low cementitious binder content to reduce the carbon footprint. Different testing methods regarding the packing density of aggregate mixtures are performed and compared. The W/C was determined according to the target compression strength. Slump flow spread is carried out to determine the most appropriate superplasticizer (SP) dosage and aggregate volume fractions and proportions in concrete mixtures. Furthermore, hardened performance, including compression strength and drying shrinkage of the fluid concrete, are characterized. Finally, a mix design process of fluid concrete with low cement content was proposed based on the preferred fresh and hardened properties of the concrete mixtures. MDPI 2020-09-14 /pmc/articles/PMC7560328/ /pubmed/32937941 http://dx.doi.org/10.3390/ma13184082 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Ning
Zuo, Wenqiang
Xu, Wen
Song, Shenyou
A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates
title A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates
title_full A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates
title_fullStr A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates
title_full_unstemmed A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates
title_short A New Approach for Designing Fluid Concrete with Low Cement Content: Optimization of Packing Density of Aggregates
title_sort new approach for designing fluid concrete with low cement content: optimization of packing density of aggregates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560328/
https://www.ncbi.nlm.nih.gov/pubmed/32937941
http://dx.doi.org/10.3390/ma13184082
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