Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture
The ultra-high-performance fiber-reinforced cementitious composite (UHPFRC) is a new generation of building material with extremely high mechanical strength and durability, which can be used for ultra-high, thin-wall or long-span construction, that prolongs the service life of construction in severe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/12/2230 |
| _version_ | 1797461100142264320 |
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| author | Rui Ma Xun Hu Huiying Hu Ziyang Tian Lei Chen Jinyu Zong |
| author_facet | Rui Ma Xun Hu Huiying Hu Ziyang Tian Lei Chen Jinyu Zong |
| author_sort | Rui Ma |
| collection | DOAJ |
| description | The ultra-high-performance fiber-reinforced cementitious composite (UHPFRC) is a new generation of building material with extremely high mechanical strength and durability, which can be used for ultra-high, thin-wall or long-span construction, that prolongs the service life of construction in severe environments. In this study, UHPFRC was prepared with a high range of local ecological admixture to decrease the material’s cost and the environmental impact. Raw materials’ proportions, water/binder ratio, fiber-volume contents, and hybrid-fiber ratio were studied on the property improvement of UHPFRC, and an F-test analysis was induced to reveal the important significance on compressive strength. The results demonstrated that the compressive strength of 237.8 MPa was achieved with mineral admixture substitution over 40%. The particle-packing density and the binder reactivity both succeeded on the compressive strength. Water/binder ratio determined the hydration degree and the flowability of UHPFRC, which affected compressive strength through hydration products and microstructure. Also, compressive strength was more sensitive with hybrid-fiber than fiber-volume content. The order of importance for compressive strength was powder proportion > hybrid-fiber ratio > fiber-volume content > water/binder ratio. |
| first_indexed | 2024-03-09T17:15:31Z |
| format | Article |
| id | doaj.art-a7fa9f6ef5a84096b1080bbd1143235d |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T17:15:31Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-a7fa9f6ef5a84096b1080bbd1143235d2023-11-24T13:44:02ZengMDPI AGBuildings2075-53092022-12-011212223010.3390/buildings12122230Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological AdmixtureRui Ma0Xun Hu1Huiying Hu2Ziyang Tian3Lei Chen4Jinyu Zong5Anhui Province Engineering Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230601, ChinaAnhui Province Engineering Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230601, ChinaAnhui Province Engineering Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230601, ChinaAnhui Province Engineering Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230601, ChinaAnhui Sanjian Engineering Co., Ltd., Hefei 230001, ChinaAnhui Sanjian Engineering Co., Ltd., Hefei 230001, ChinaThe ultra-high-performance fiber-reinforced cementitious composite (UHPFRC) is a new generation of building material with extremely high mechanical strength and durability, which can be used for ultra-high, thin-wall or long-span construction, that prolongs the service life of construction in severe environments. In this study, UHPFRC was prepared with a high range of local ecological admixture to decrease the material’s cost and the environmental impact. Raw materials’ proportions, water/binder ratio, fiber-volume contents, and hybrid-fiber ratio were studied on the property improvement of UHPFRC, and an F-test analysis was induced to reveal the important significance on compressive strength. The results demonstrated that the compressive strength of 237.8 MPa was achieved with mineral admixture substitution over 40%. The particle-packing density and the binder reactivity both succeeded on the compressive strength. Water/binder ratio determined the hydration degree and the flowability of UHPFRC, which affected compressive strength through hydration products and microstructure. Also, compressive strength was more sensitive with hybrid-fiber than fiber-volume content. The order of importance for compressive strength was powder proportion > hybrid-fiber ratio > fiber-volume content > water/binder ratio.https://www.mdpi.com/2075-5309/12/12/2230strength designUHPFRChigh-range local admixturecompressive strengthsignificance analysis |
| spellingShingle | Rui Ma Xun Hu Huiying Hu Ziyang Tian Lei Chen Jinyu Zong Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture Buildings strength design UHPFRC high-range local admixture compressive strength significance analysis |
| title | Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture |
| title_full | Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture |
| title_fullStr | Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture |
| title_full_unstemmed | Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture |
| title_short | Strength Design of Ultra-High-Performance Fiber-Reinforced Cementitious Composites Using Local Ecological Admixture |
| title_sort | strength design of ultra high performance fiber reinforced cementitious composites using local ecological admixture |
| topic | strength design UHPFRC high-range local admixture compressive strength significance analysis |
| url | https://www.mdpi.com/2075-5309/12/12/2230 |
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