A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer
The internal curing method is effective in reducing the self-desiccation of concrete, and the amount of internal curing water (IC water) is greatly important to the shrinkage and strength of concrete. A method for calculating IC water of concrete with and without mineral admixture has been developed...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6645976 |
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| author | Shouqi Zhang Zhenbao Lu Yongxin Li Yuan Ang Kechao Zhang |
| author_facet | Shouqi Zhang Zhenbao Lu Yongxin Li Yuan Ang Kechao Zhang |
| author_sort | Shouqi Zhang |
| collection | DOAJ |
| description | The internal curing method is effective in reducing the self-desiccation of concrete, and the amount of internal curing water (IC water) is greatly important to the shrinkage and strength of concrete. A method for calculating IC water of concrete with and without mineral admixture has been developed. The method is derived from Powers’ model for the phase distribution of a hydrating cement paste. To verify the method, a series of autogenous shrinkage and compressive strength of concrete with and without super absorbent polymer (SAP) were evaluated compared with the method proposed previously. To explain the macro performance of hardened concrete, the nonevaporable water content and calcium hydroxide content measurement were utilized to evaluate the degree of hydration of cement pastes. And, mercury intrusion method and image analysis method were used to explore the pore structure in hardened cement pastes and air void characteristics in hardened concrete, respectively. Furthermore, the evolution process was also studied for the relative humidity inside the concrete. |
| format | Article |
| id | doaj-art-a04349b3df15414594c74ccf3bd75a1a |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-a04349b3df15414594c74ccf3bd75a1a2025-02-03T06:01:16ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66459766645976A Method for Internal Curing Water Calculation of Concrete with Super Absorbent PolymerShouqi Zhang0Zhenbao Lu1Yongxin Li2Yuan Ang3Kechao Zhang4Southeast University, Nanjing 211189, ChinaResearch and Development Center of Transport Industry of Intelligent Manufacturing Technologies of TransportInfrastructure Ministry of Transport, PRC, China-road Transportation Verification & Inspection Hi-Tech Co., Ltd., Beijing 100088, ChinaResearch and Development Center of Transport Industry of Intelligent Manufacturing Technologies of TransportInfrastructure Ministry of Transport, PRC, China-road Transportation Verification & Inspection Hi-Tech Co., Ltd., Beijing 100088, ChinaResearch and Development Center of Transport Industry of Intelligent Manufacturing Technologies of TransportInfrastructure Ministry of Transport, PRC, China-road Transportation Verification & Inspection Hi-Tech Co., Ltd., Beijing 100088, ChinaResearch and Development Center of Transport Industry of Intelligent Manufacturing Technologies of TransportInfrastructure Ministry of Transport, PRC, China-road Transportation Verification & Inspection Hi-Tech Co., Ltd., Beijing 100088, ChinaThe internal curing method is effective in reducing the self-desiccation of concrete, and the amount of internal curing water (IC water) is greatly important to the shrinkage and strength of concrete. A method for calculating IC water of concrete with and without mineral admixture has been developed. The method is derived from Powers’ model for the phase distribution of a hydrating cement paste. To verify the method, a series of autogenous shrinkage and compressive strength of concrete with and without super absorbent polymer (SAP) were evaluated compared with the method proposed previously. To explain the macro performance of hardened concrete, the nonevaporable water content and calcium hydroxide content measurement were utilized to evaluate the degree of hydration of cement pastes. And, mercury intrusion method and image analysis method were used to explore the pore structure in hardened cement pastes and air void characteristics in hardened concrete, respectively. Furthermore, the evolution process was also studied for the relative humidity inside the concrete.http://dx.doi.org/10.1155/2021/6645976 |
| spellingShingle | Shouqi Zhang Zhenbao Lu Yongxin Li Yuan Ang Kechao Zhang A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer Advances in Civil Engineering |
| title | A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer |
| title_full | A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer |
| title_fullStr | A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer |
| title_full_unstemmed | A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer |
| title_short | A Method for Internal Curing Water Calculation of Concrete with Super Absorbent Polymer |
| title_sort | method for internal curing water calculation of concrete with super absorbent polymer |
| url | http://dx.doi.org/10.1155/2021/6645976 |
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