Cargando…
Stress-Strain Behavior of Cementitious Materials with Different Sizes
The size dependence of flexural properties of cement mortar and concrete beams is investigated. Bazant's size effect law and modified size effect law by Kim and Eo give a very good fit to the flexural strength of both cement mortar and concrete. As observed in the test results, a strong size ef...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3972930/ https://www.ncbi.nlm.nih.gov/pubmed/24744688 http://dx.doi.org/10.1155/2014/919154 |
_version_ | 1782309643952848896 |
---|---|
author | Zhou, Jikai Qian, Pingping Chen, Xudong |
author_facet | Zhou, Jikai Qian, Pingping Chen, Xudong |
author_sort | Zhou, Jikai |
collection | PubMed |
description | The size dependence of flexural properties of cement mortar and concrete beams is investigated. Bazant's size effect law and modified size effect law by Kim and Eo give a very good fit to the flexural strength of both cement mortar and concrete. As observed in the test results, a strong size effect in flexural strength is found in cement mortar than in concrete. A modification has been suggested to Li's equation for describing the stress-strain curve of cement mortar and concrete by incorporating two different correction factors, the factors contained in the modified equation being established empirically as a function of specimen size. A comparison of the predictions of this equation with test data generated in this study shows good agreement. |
format | Online Article Text |
id | pubmed-3972930 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-39729302014-04-17 Stress-Strain Behavior of Cementitious Materials with Different Sizes Zhou, Jikai Qian, Pingping Chen, Xudong ScientificWorldJournal Research Article The size dependence of flexural properties of cement mortar and concrete beams is investigated. Bazant's size effect law and modified size effect law by Kim and Eo give a very good fit to the flexural strength of both cement mortar and concrete. As observed in the test results, a strong size effect in flexural strength is found in cement mortar than in concrete. A modification has been suggested to Li's equation for describing the stress-strain curve of cement mortar and concrete by incorporating two different correction factors, the factors contained in the modified equation being established empirically as a function of specimen size. A comparison of the predictions of this equation with test data generated in this study shows good agreement. Hindawi Publishing Corporation 2014-03-13 /pmc/articles/PMC3972930/ /pubmed/24744688 http://dx.doi.org/10.1155/2014/919154 Text en Copyright © 2014 Jikai Zhou et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Zhou, Jikai Qian, Pingping Chen, Xudong Stress-Strain Behavior of Cementitious Materials with Different Sizes |
title | Stress-Strain Behavior of Cementitious Materials with Different Sizes |
title_full | Stress-Strain Behavior of Cementitious Materials with Different Sizes |
title_fullStr | Stress-Strain Behavior of Cementitious Materials with Different Sizes |
title_full_unstemmed | Stress-Strain Behavior of Cementitious Materials with Different Sizes |
title_short | Stress-Strain Behavior of Cementitious Materials with Different Sizes |
title_sort | stress-strain behavior of cementitious materials with different sizes |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3972930/ https://www.ncbi.nlm.nih.gov/pubmed/24744688 http://dx.doi.org/10.1155/2014/919154 |
work_keys_str_mv | AT zhoujikai stressstrainbehaviorofcementitiousmaterialswithdifferentsizes AT qianpingping stressstrainbehaviorofcementitiousmaterialswithdifferentsizes AT chenxudong stressstrainbehaviorofcementitiousmaterialswithdifferentsizes |