A Prediction Method of Tensile Young's Modulus of Concrete at Early Age
Knowledge of the tensile Young's modulus of concrete at early ages is important for estimating the risk of cracking due to restrained shrinkage and thermal contraction. However, most often, the tensile modulus is considered equal to the compressive modulus and is estimated empirically based on...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/391214 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832550950209847296 |
|---|---|
| author | Isamu Yoshitake Farshad Rajabipour Yoichi Mimura Andrew Scanlon |
| author_facet | Isamu Yoshitake Farshad Rajabipour Yoichi Mimura Andrew Scanlon |
| author_sort | Isamu Yoshitake |
| collection | DOAJ |
| description | Knowledge of the tensile Young's modulus of concrete at early ages is important for estimating the risk of cracking due to restrained shrinkage and thermal contraction. However, most often, the tensile modulus is considered equal to the compressive modulus and is estimated empirically based on the measurements of compressive strength. To evaluate the validity of this approach, the tensile Young's moduli of 6 concrete and mortar mixtures are measured using a direct tension test. The results show that the tensile moduli are approximately 1.0–1.3-times larger than the compressive moduli within the material's first week of age. To enable a direct estimation of the tensile modulus of concrete, a simple three-phase composite model is developed based on random distributions of coarse aggregate, mortar, and air void phases. The model predictions show good agreement with experimental measurements of tensile modulus at early age. |
| format | Article |
| id | doaj-art-03f28a7f8b784728b8b1475edbfef614 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-03f28a7f8b784728b8b1475edbfef6142025-02-03T06:05:22ZengWileyAdvances in Civil Engineering1687-80861687-80942012-01-01201210.1155/2012/391214391214A Prediction Method of Tensile Young's Modulus of Concrete at Early AgeIsamu Yoshitake0Farshad Rajabipour1Yoichi Mimura2Andrew Scanlon3Department of Civil and Environmental Engineering, Yamaguchi University, Ube, Yamaguchi 755-8611, JapanDepartment of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA 16802, USADepartment of Civil and Environmental Engineering, Kure National College of Technology, Kure, Hiroshima 737-8506, JapanDepartment of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA 16802, USAKnowledge of the tensile Young's modulus of concrete at early ages is important for estimating the risk of cracking due to restrained shrinkage and thermal contraction. However, most often, the tensile modulus is considered equal to the compressive modulus and is estimated empirically based on the measurements of compressive strength. To evaluate the validity of this approach, the tensile Young's moduli of 6 concrete and mortar mixtures are measured using a direct tension test. The results show that the tensile moduli are approximately 1.0–1.3-times larger than the compressive moduli within the material's first week of age. To enable a direct estimation of the tensile modulus of concrete, a simple three-phase composite model is developed based on random distributions of coarse aggregate, mortar, and air void phases. The model predictions show good agreement with experimental measurements of tensile modulus at early age.http://dx.doi.org/10.1155/2012/391214 |
| spellingShingle | Isamu Yoshitake Farshad Rajabipour Yoichi Mimura Andrew Scanlon A Prediction Method of Tensile Young's Modulus of Concrete at Early Age Advances in Civil Engineering |
| title | A Prediction Method of Tensile Young's Modulus of Concrete at Early Age |
| title_full | A Prediction Method of Tensile Young's Modulus of Concrete at Early Age |
| title_fullStr | A Prediction Method of Tensile Young's Modulus of Concrete at Early Age |
| title_full_unstemmed | A Prediction Method of Tensile Young's Modulus of Concrete at Early Age |
| title_short | A Prediction Method of Tensile Young's Modulus of Concrete at Early Age |
| title_sort | prediction method of tensile young s modulus of concrete at early age |
| url | http://dx.doi.org/10.1155/2012/391214 |
| work_keys_str_mv | AT isamuyoshitake apredictionmethodoftensileyoungsmodulusofconcreteatearlyage AT farshadrajabipour apredictionmethodoftensileyoungsmodulusofconcreteatearlyage AT yoichimimura apredictionmethodoftensileyoungsmodulusofconcreteatearlyage AT andrewscanlon apredictionmethodoftensileyoungsmodulusofconcreteatearlyage AT isamuyoshitake predictionmethodoftensileyoungsmodulusofconcreteatearlyage AT farshadrajabipour predictionmethodoftensileyoungsmodulusofconcreteatearlyage AT yoichimimura predictionmethodoftensileyoungsmodulusofconcreteatearlyage AT andrewscanlon predictionmethodoftensileyoungsmodulusofconcreteatearlyage |