Cracking Tendency Prediction of High-Performance Cementitious Materials
The constraint ring test is widely used to assess the cracking potential for early-age cementitious materials. In this paper, the analytical expressions based on elastic mechanism are presented to estimate the residual stresses of the restrained mortar ring by considering the comprehensive effects o...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2014/591084 |
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| author | Ke Chen Hui Hu Ke Chen Zhaohui Chen Xin Wang |
| author_facet | Ke Chen Hui Hu Ke Chen Zhaohui Chen Xin Wang |
| author_sort | Ke Chen |
| collection | DOAJ |
| description | The constraint ring test is widely used to assess the cracking potential for early-age cementitious materials. In this paper, the analytical expressions based on elastic mechanism are presented to estimate the residual stresses of the restrained mortar ring by considering the comprehensive effects of hydration heat, autogenous and drying shrinkage, creeping, and restraint. In the present analytical method, the stress field of the restrained ring is treated as the superposition of those caused by hydration heat, external restraint, autogenous and drying shrinkage, and creep. The factors including the properties of materials, environmental parameters such as relative humidity and temperature, the geometry effect of specimen, and the relative constraint effects of steel ring to mortar ring, are taken into account to predict the strain development with age of mortar. The temperature of the ring, the elastic modulus, the creep strain, and the split tensile strength are measured to validate the model. The age of cracking is predicted by comparing the estimated maximum tensile stress of the restrained mortar ring with the measured split tensile strength of specimen. The suitability of the present analytical method is assessed by comparing with the restraint ring test and a soundly good agreement is observed. |
| format | Article |
| id | doaj-art-493722c011b24065bbca3d4c07c063d9 |
| institution | OA Journals |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-493722c011b24065bbca3d4c07c063d92025-08-20T02:05:52ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242014-01-01201410.1155/2014/591084591084Cracking Tendency Prediction of High-Performance Cementitious MaterialsKe Chen0Hui Hu1Ke Chen2Zhaohui Chen3Xin Wang4Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Ministry of Education, Chongqing 400044, ChinaKey Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Ministry of Education, Chongqing 400044, ChinaSchool of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaKey Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Ministry of Education, Chongqing 400044, ChinaSchool of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaThe constraint ring test is widely used to assess the cracking potential for early-age cementitious materials. In this paper, the analytical expressions based on elastic mechanism are presented to estimate the residual stresses of the restrained mortar ring by considering the comprehensive effects of hydration heat, autogenous and drying shrinkage, creeping, and restraint. In the present analytical method, the stress field of the restrained ring is treated as the superposition of those caused by hydration heat, external restraint, autogenous and drying shrinkage, and creep. The factors including the properties of materials, environmental parameters such as relative humidity and temperature, the geometry effect of specimen, and the relative constraint effects of steel ring to mortar ring, are taken into account to predict the strain development with age of mortar. The temperature of the ring, the elastic modulus, the creep strain, and the split tensile strength are measured to validate the model. The age of cracking is predicted by comparing the estimated maximum tensile stress of the restrained mortar ring with the measured split tensile strength of specimen. The suitability of the present analytical method is assessed by comparing with the restraint ring test and a soundly good agreement is observed.http://dx.doi.org/10.1155/2014/591084 |
| spellingShingle | Ke Chen Hui Hu Ke Chen Zhaohui Chen Xin Wang Cracking Tendency Prediction of High-Performance Cementitious Materials Advances in Condensed Matter Physics |
| title | Cracking Tendency Prediction of High-Performance Cementitious Materials |
| title_full | Cracking Tendency Prediction of High-Performance Cementitious Materials |
| title_fullStr | Cracking Tendency Prediction of High-Performance Cementitious Materials |
| title_full_unstemmed | Cracking Tendency Prediction of High-Performance Cementitious Materials |
| title_short | Cracking Tendency Prediction of High-Performance Cementitious Materials |
| title_sort | cracking tendency prediction of high performance cementitious materials |
| url | http://dx.doi.org/10.1155/2014/591084 |
| work_keys_str_mv | AT kechen crackingtendencypredictionofhighperformancecementitiousmaterials AT huihu crackingtendencypredictionofhighperformancecementitiousmaterials AT kechen crackingtendencypredictionofhighperformancecementitiousmaterials AT zhaohuichen crackingtendencypredictionofhighperformancecementitiousmaterials AT xinwang crackingtendencypredictionofhighperformancecementitiousmaterials |