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Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method
The use of self-consolidating concrete and advanced pumping system enables efficient construction of super high-rise buildings; however, risks such as clogging or even bursting of pipeline still exist. To better understand the fresh concrete pumping mechanisms in detail, the discrete element method...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539973/ https://www.ncbi.nlm.nih.gov/pubmed/31052290 http://dx.doi.org/10.3390/ma12091415 |
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author | Zhan, Yijian Gong, Jian Huang, Yulin Shi, Chong Zuo, Zibo Chen, Yiqun |
author_facet | Zhan, Yijian Gong, Jian Huang, Yulin Shi, Chong Zuo, Zibo Chen, Yiqun |
author_sort | Zhan, Yijian |
collection | PubMed |
description | The use of self-consolidating concrete and advanced pumping system enables efficient construction of super high-rise buildings; however, risks such as clogging or even bursting of pipeline still exist. To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling the coarse aggregates as rigid clumps and appropriately defining the contact models, the concrete flow in representative pipeline units is well revealed. Important factors related to the pipe geometry, aggregate geometry and pumping condition were considered during a series of parametric studies. Based on the simulation results, their impact on the local pumping performance is summarized. The present work demonstrates that the discrete element simulation offers a useful way to evaluate the influence of various parameters on the pumpability of fresh concrete. |
format | Online Article Text |
id | pubmed-6539973 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-65399732019-06-05 Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method Zhan, Yijian Gong, Jian Huang, Yulin Shi, Chong Zuo, Zibo Chen, Yiqun Materials (Basel) Article The use of self-consolidating concrete and advanced pumping system enables efficient construction of super high-rise buildings; however, risks such as clogging or even bursting of pipeline still exist. To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling the coarse aggregates as rigid clumps and appropriately defining the contact models, the concrete flow in representative pipeline units is well revealed. Important factors related to the pipe geometry, aggregate geometry and pumping condition were considered during a series of parametric studies. Based on the simulation results, their impact on the local pumping performance is summarized. The present work demonstrates that the discrete element simulation offers a useful way to evaluate the influence of various parameters on the pumpability of fresh concrete. MDPI 2019-04-30 /pmc/articles/PMC6539973/ /pubmed/31052290 http://dx.doi.org/10.3390/ma12091415 Text en © 2019 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 Zhan, Yijian Gong, Jian Huang, Yulin Shi, Chong Zuo, Zibo Chen, Yiqun Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method |
title | Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method |
title_full | Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method |
title_fullStr | Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method |
title_full_unstemmed | Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method |
title_short | Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method |
title_sort | numerical study on concrete pumping behavior via local flow simulation with discrete element method |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539973/ https://www.ncbi.nlm.nih.gov/pubmed/31052290 http://dx.doi.org/10.3390/ma12091415 |
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