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The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete
Despite the advantageous benefits offered by self-compacting concrete, its uses are still limited due to the high pressure exerted on the formwork. Different parameters, such as those related to concrete mix design, the properties of newly poured concrete, and placement method, have an impact on for...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9863822/ https://www.ncbi.nlm.nih.gov/pubmed/36676495 http://dx.doi.org/10.3390/ma16020759 |
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author | Gamil, Yaser Cwirzen, Andrzej Nilimaa, Jonny Emborg, Mats |
author_facet | Gamil, Yaser Cwirzen, Andrzej Nilimaa, Jonny Emborg, Mats |
author_sort | Gamil, Yaser |
collection | PubMed |
description | Despite the advantageous benefits offered by self-compacting concrete, its uses are still limited due to the high pressure exerted on the formwork. Different parameters, such as those related to concrete mix design, the properties of newly poured concrete, and placement method, have an impact on form pressure. The question remains unanswered on the degree of the impact for each parameter. Therefore, this study aims to study the level of impact of these parameters, including slump flow, T500 time, fresh concrete density, air content, static yield stress, concrete setting time, and concrete temperature. To mimic the casting scenario, 2 m columns were cast at various casting rates and a laboratory setup was developed. A pressure system that can wirelessly and continuously record pressure was used to monitor the pressure. Each parameter’s impact on the level of pressure was examined separately. Casting rate and slump flow were shown to have a greater influence on pressure. The results also demonstrated that, while higher thixotropy causes form pressure to rapidly decrease, a high casting rate and high slump flow lead to high pressure. This study suggests that more thorough analysis should be conducted of additional factors that may have an impact, such as the placement method, which was not included in this publication. |
format | Online Article Text |
id | pubmed-9863822 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98638222023-01-22 The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete Gamil, Yaser Cwirzen, Andrzej Nilimaa, Jonny Emborg, Mats Materials (Basel) Article Despite the advantageous benefits offered by self-compacting concrete, its uses are still limited due to the high pressure exerted on the formwork. Different parameters, such as those related to concrete mix design, the properties of newly poured concrete, and placement method, have an impact on form pressure. The question remains unanswered on the degree of the impact for each parameter. Therefore, this study aims to study the level of impact of these parameters, including slump flow, T500 time, fresh concrete density, air content, static yield stress, concrete setting time, and concrete temperature. To mimic the casting scenario, 2 m columns were cast at various casting rates and a laboratory setup was developed. A pressure system that can wirelessly and continuously record pressure was used to monitor the pressure. Each parameter’s impact on the level of pressure was examined separately. Casting rate and slump flow were shown to have a greater influence on pressure. The results also demonstrated that, while higher thixotropy causes form pressure to rapidly decrease, a high casting rate and high slump flow lead to high pressure. This study suggests that more thorough analysis should be conducted of additional factors that may have an impact, such as the placement method, which was not included in this publication. MDPI 2023-01-12 /pmc/articles/PMC9863822/ /pubmed/36676495 http://dx.doi.org/10.3390/ma16020759 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Gamil, Yaser Cwirzen, Andrzej Nilimaa, Jonny Emborg, Mats The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete |
title | The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete |
title_full | The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete |
title_fullStr | The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete |
title_full_unstemmed | The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete |
title_short | The Impact of Different Parameters on the Formwork Pressure Exerted by Self-Compacting Concrete |
title_sort | impact of different parameters on the formwork pressure exerted by self-compacting concrete |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9863822/ https://www.ncbi.nlm.nih.gov/pubmed/36676495 http://dx.doi.org/10.3390/ma16020759 |
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