Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete
Abstract Herein, a practical ultra-high-performance concrete (UHPC) was created by adding two different shapes of steel fibers and curing them at ambient temperature using palygorskite-nanofiber (PN) as the modifier. The compressive strength, flexural strength, water absorption capacity, and porosit...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-59020-8 |
| _version_ | 1827284268403916800 |
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| author | Yingying Huang Dewen Kong Yi Li Shenghui Zhou Jing Shu Bing wu |
| author_facet | Yingying Huang Dewen Kong Yi Li Shenghui Zhou Jing Shu Bing wu |
| author_sort | Yingying Huang |
| collection | DOAJ |
| description | Abstract Herein, a practical ultra-high-performance concrete (UHPC) was created by adding two different shapes of steel fibers and curing them at ambient temperature using palygorskite-nanofiber (PN) as the modifier. The compressive strength, flexural strength, water absorption capacity, and porosity were analyzed to determine the effects of the steel fibers and PNs on the UHPC mechanical and physical properties. The steel fibers and PNs were found to improve these properties. The UHPC mechanical properties were outstanding at 1.5% fiber dosage, while physical properties were excellent at 1.0% fiber dosage. The mechanical and physical characteristics of UHPC were preferably at a PN dosage of 0.2% and the fiber dosage of 1.0%. The compressive and flexural strengths of straight-steel-fiber UHPC were 145.57 and 19.67 MPa, respectively, i.e., 42.0 and 109.4% higher than those of the reference specimens (i.e., those without fibers or PNs); the water absorption capacity and porosity decreased by 50.1 and 60.7%, respectively. The compressive and flexural strengths of hooked-end-steel-fiber UHPC were 18.3 and 96.0% higher than those of the reference specimens, respectively, and the water absorption capacity and porosity decreased by 43.2 and 29.8%, respectively. These results could provide vital information for the promotion and practical application of UHPC. |
| first_indexed | 2024-04-24T09:52:56Z |
| format | Article |
| id | doaj.art-1a7b477f51134542b6bf018d2cc59f5c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T09:52:56Z |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1a7b477f51134542b6bf018d2cc59f5c2024-04-14T11:17:09ZengNature PortfolioScientific Reports2045-23222024-04-0114111410.1038/s41598-024-59020-8Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concreteYingying Huang0Dewen Kong1Yi Li2Shenghui Zhou3Jing Shu4Bing wu5Guizhou UniversityGuizhou UniversityGuizhou UniversityGuizhou UniversityGuizhou UniversityGuizhou UniversityAbstract Herein, a practical ultra-high-performance concrete (UHPC) was created by adding two different shapes of steel fibers and curing them at ambient temperature using palygorskite-nanofiber (PN) as the modifier. The compressive strength, flexural strength, water absorption capacity, and porosity were analyzed to determine the effects of the steel fibers and PNs on the UHPC mechanical and physical properties. The steel fibers and PNs were found to improve these properties. The UHPC mechanical properties were outstanding at 1.5% fiber dosage, while physical properties were excellent at 1.0% fiber dosage. The mechanical and physical characteristics of UHPC were preferably at a PN dosage of 0.2% and the fiber dosage of 1.0%. The compressive and flexural strengths of straight-steel-fiber UHPC were 145.57 and 19.67 MPa, respectively, i.e., 42.0 and 109.4% higher than those of the reference specimens (i.e., those without fibers or PNs); the water absorption capacity and porosity decreased by 50.1 and 60.7%, respectively. The compressive and flexural strengths of hooked-end-steel-fiber UHPC were 18.3 and 96.0% higher than those of the reference specimens, respectively, and the water absorption capacity and porosity decreased by 43.2 and 29.8%, respectively. These results could provide vital information for the promotion and practical application of UHPC.https://doi.org/10.1038/s41598-024-59020-8Ultra-high-performance concrete (UHPC)PalygorskiteStraight-steel fiberHooked-end-steel fiberMechanical properties |
| spellingShingle | Yingying Huang Dewen Kong Yi Li Shenghui Zhou Jing Shu Bing wu Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete Scientific Reports Ultra-high-performance concrete (UHPC) Palygorskite Straight-steel fiber Hooked-end-steel fiber Mechanical properties |
| title | Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete |
| title_full | Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete |
| title_fullStr | Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete |
| title_full_unstemmed | Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete |
| title_short | Effect of different shapes of steel fibers and palygorskite-nanofibers on performance of ultra-high-performance concrete |
| title_sort | effect of different shapes of steel fibers and palygorskite nanofibers on performance of ultra high performance concrete |
| topic | Ultra-high-performance concrete (UHPC) Palygorskite Straight-steel fiber Hooked-end-steel fiber Mechanical properties |
| url | https://doi.org/10.1038/s41598-024-59020-8 |
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