Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique
This paper evaluates the creep behavior of wollastonite-microfiber-reinforced hardened cement paste. A parametric study was performed for cementitious mixtures with partial replacement of cement using wollastonite. The samples were subjected to uniaxial compression and microindentation experiments....
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/5/2933 |
| _version_ | 1797615815077396480 |
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| author | Sami Doner Jonathan T. Villada Sumanta Das |
| author_facet | Sami Doner Jonathan T. Villada Sumanta Das |
| author_sort | Sami Doner |
| collection | DOAJ |
| description | This paper evaluates the creep behavior of wollastonite-microfiber-reinforced hardened cement paste. A parametric study was performed for cementitious mixtures with partial replacement of cement using wollastonite. The samples were subjected to uniaxial compression and microindentation experiments. The compressive strength significantly improved by up to 30% for the mixture containing 10% wollastonite fiber. Microindentation experiments were performed to evaluate the creep response and time-dependent performance of both the control and the wollastonite-fiber-reinforced samples. Approximately 36% increase in creep modulus was observed with 10% wollastonite fiber content. This indicates a significant improvement in creep behavior, which can be attributed to the micro-reinforcing effect of the fibers. No significant impact was observed for time characteristic of creep with the incorporation of wollastonite fibers. Overall, the study establishes a cost-effective, sustainable, and efficient route to enhance the creep behavior of hardened cement paste for a wide range of infrastructural applications. |
| first_indexed | 2024-03-11T07:32:14Z |
| format | Article |
| id | doaj.art-ce72c658d7124610ba6ab209209136fe |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T07:32:14Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ce72c658d7124610ba6ab209209136fe2023-11-17T07:17:02ZengMDPI AGApplied Sciences2076-34172023-02-01135293310.3390/app13052933Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation TechniqueSami Doner0Jonathan T. Villada1Sumanta Das2Department of Civil and Environmental Engineering, University of Rhode Island, Kingston, RI 02881, USADepartment of Civil and Environmental Engineering, University of Rhode Island, Kingston, RI 02881, USADepartment of Civil and Environmental Engineering, University of Rhode Island, Kingston, RI 02881, USAThis paper evaluates the creep behavior of wollastonite-microfiber-reinforced hardened cement paste. A parametric study was performed for cementitious mixtures with partial replacement of cement using wollastonite. The samples were subjected to uniaxial compression and microindentation experiments. The compressive strength significantly improved by up to 30% for the mixture containing 10% wollastonite fiber. Microindentation experiments were performed to evaluate the creep response and time-dependent performance of both the control and the wollastonite-fiber-reinforced samples. Approximately 36% increase in creep modulus was observed with 10% wollastonite fiber content. This indicates a significant improvement in creep behavior, which can be attributed to the micro-reinforcing effect of the fibers. No significant impact was observed for time characteristic of creep with the incorporation of wollastonite fibers. Overall, the study establishes a cost-effective, sustainable, and efficient route to enhance the creep behavior of hardened cement paste for a wide range of infrastructural applications.https://www.mdpi.com/2076-3417/13/5/2933creepcompressionwollastonite fibershardened cement pastemicroindentation |
| spellingShingle | Sami Doner Jonathan T. Villada Sumanta Das Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique Applied Sciences creep compression wollastonite fibers hardened cement paste microindentation |
| title | Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique |
| title_full | Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique |
| title_fullStr | Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique |
| title_full_unstemmed | Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique |
| title_short | Improving the Creep Resistance of Hardened Cement Paste through the Addition of Wollastonite Microfibers: Evaluation Using the Micro-Indentation Technique |
| title_sort | improving the creep resistance of hardened cement paste through the addition of wollastonite microfibers evaluation using the micro indentation technique |
| topic | creep compression wollastonite fibers hardened cement paste microindentation |
| url | https://www.mdpi.com/2076-3417/13/5/2933 |
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