The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect
Internal curing has been proven to be an efficient way to inhibit shrinkage of ultra-high performance concrete (UHPC). Cellulose fiber (CF), which has a hydrophilic surface and lumen structure, is a suitable internal curing agent without self-volume deformation. However, studies about CF on autogeno...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425002054 |
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| author | Rui Ma Erheng Wang Wei Zhang Daosheng Sun Yi Ding Liping Guo |
| author_facet | Rui Ma Erheng Wang Wei Zhang Daosheng Sun Yi Ding Liping Guo |
| author_sort | Rui Ma |
| collection | DOAJ |
| description | Internal curing has been proven to be an efficient way to inhibit shrinkage of ultra-high performance concrete (UHPC). Cellulose fiber (CF), which has a hydrophilic surface and lumen structure, is a suitable internal curing agent without self-volume deformation. However, studies about CF on autogenous shrinkage are limited and the shrinkage reduction mechanism is still unclear. In this study, the humidity control of CF and their effects on UHPC properties were investigated. CF increased absorption of the superplasticizer, resulted to the shorter setting time. The change of fluidity and strength of UHPC with CF was less than 5% with different CF dosage. The early autogenous shrinkage of UHPC can be divided into six stages, and in each stage, the shrinkage of UHPC with CF was reduced, especially in stage IV, the AFt intermediate product growth larger due to the absorption of superplasticizer, which offset 82.7 % of the shrinkage in maximum. The total autogenous shrinkage was reduced to 345 × 10−6 at minimum, compared to the 990 × 10−6 for the control group. |
| format | Article |
| id | doaj-art-bd95c21e818a4136a79b68ef7970585b |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-bd95c21e818a4136a79b68ef7970585b2025-01-31T05:11:24ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013523852394The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effectRui Ma0Erheng Wang1Wei Zhang2Daosheng Sun3Yi Ding4Liping Guo5Department of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, 230022, China; Department of Civil and Environmental Engineering, National University of Singapore, Singapore, 117578, SingaporeDepartment of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, 230022, ChinaHefei Zhongya Building Material Equipment Co., LTD, Hefei, 230051, ChinaDepartment of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, 230022, China; Corresponding author.Department of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, 230022, ChinaDepartment of Materials Science and Engineering, Southeast University, Nanjing, 210023, China; Corresponding author.Internal curing has been proven to be an efficient way to inhibit shrinkage of ultra-high performance concrete (UHPC). Cellulose fiber (CF), which has a hydrophilic surface and lumen structure, is a suitable internal curing agent without self-volume deformation. However, studies about CF on autogenous shrinkage are limited and the shrinkage reduction mechanism is still unclear. In this study, the humidity control of CF and their effects on UHPC properties were investigated. CF increased absorption of the superplasticizer, resulted to the shorter setting time. The change of fluidity and strength of UHPC with CF was less than 5% with different CF dosage. The early autogenous shrinkage of UHPC can be divided into six stages, and in each stage, the shrinkage of UHPC with CF was reduced, especially in stage IV, the AFt intermediate product growth larger due to the absorption of superplasticizer, which offset 82.7 % of the shrinkage in maximum. The total autogenous shrinkage was reduced to 345 × 10−6 at minimum, compared to the 990 × 10−6 for the control group.http://www.sciencedirect.com/science/article/pii/S2238785425002054UHPCCFAutogenous shrinkageRelative humidityMicrostructure |
| spellingShingle | Rui Ma Erheng Wang Wei Zhang Daosheng Sun Yi Ding Liping Guo The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect Journal of Materials Research and Technology UHPC CF Autogenous shrinkage Relative humidity Microstructure |
| title | The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect |
| title_full | The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect |
| title_fullStr | The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect |
| title_full_unstemmed | The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect |
| title_short | The properties improvement of UHPC incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect |
| title_sort | properties improvement of uhpc incorporation cellulose fiber and the autogenous shrinkage reduction mechanism with internal curing effect |
| topic | UHPC CF Autogenous shrinkage Relative humidity Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425002054 |
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