Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior
Conventional concrete is a brittle material with a very low tensile strength as a result of compressive strength and tensile strain. In this study, the flexural behavior characteristics of slurry-infiltrated fiber-reinforced cementitious composites (SIFRCCs) based on slurry-infiltrated fiber concret...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/6/2072 |
| _version_ | 1818108355190718464 |
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| author | Seungwon Kim Cheolwoo Park Yongjae Kim |
| author_facet | Seungwon Kim Cheolwoo Park Yongjae Kim |
| author_sort | Seungwon Kim |
| collection | DOAJ |
| description | Conventional concrete is a brittle material with a very low tensile strength as a result of compressive strength and tensile strain. In this study, the flexural behavior characteristics of slurry-infiltrated fiber-reinforced cementitious composites (SIFRCCs) based on slurry-infiltrated fiber concrete (SIFCON), such as high-performance fiber-reinforced cementitious composites (HPFRCCs), were analyzed to maximize the fiber volume fraction and increase resistance to loads with very short working times (such as explosions or impacts). For extensive experimental variables, one fiber aspect ratio and three fiber volume fractions (6%, 5%, and 4%) were designed, and the flexural toughness and strength were figured out with respect to variables. A maximum flexural strength of 45 MPa was presented for a fiber volume fraction of 6%, and it was found that by increasing the fiber volume fraction the flexural strength and toughness increased. The test results with respect to fiber volume fraction revealed that after the initial crack, the load of SIFRCCs frequently increased because of the high fiber volume fraction. In addition to maximum strength, acceptable strength was found, which could have a positive effect on brittle fractures in structures where an accidental load is applied (such as an impact or explosion). |
| first_indexed | 2024-12-11T02:14:02Z |
| format | Article |
| id | doaj.art-1d9e5b9825f641e0961f7c6126dd6b63 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T02:14:02Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1d9e5b9825f641e0961f7c6126dd6b632022-12-22T01:24:12ZengMDPI AGApplied Sciences2076-34172020-03-01106207210.3390/app10062072app10062072Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural BehaviorSeungwon Kim0Cheolwoo Park1Yongjae Kim2KIIT (Kangwon Institute of Inclusive Technology), Kangwon National University, 1 Gangwondaegil, Chuncheon 24341, KoreaKIIT (Kangwon Institute of Inclusive Technology), Kangwon National University, 1 Gangwondaegil, Chuncheon 24341, KoreaDepartment of Civil Engineering, Kangwon National University, 346 Jungnag-ro, Samcheok 25913, KoreaConventional concrete is a brittle material with a very low tensile strength as a result of compressive strength and tensile strain. In this study, the flexural behavior characteristics of slurry-infiltrated fiber-reinforced cementitious composites (SIFRCCs) based on slurry-infiltrated fiber concrete (SIFCON), such as high-performance fiber-reinforced cementitious composites (HPFRCCs), were analyzed to maximize the fiber volume fraction and increase resistance to loads with very short working times (such as explosions or impacts). For extensive experimental variables, one fiber aspect ratio and three fiber volume fractions (6%, 5%, and 4%) were designed, and the flexural toughness and strength were figured out with respect to variables. A maximum flexural strength of 45 MPa was presented for a fiber volume fraction of 6%, and it was found that by increasing the fiber volume fraction the flexural strength and toughness increased. The test results with respect to fiber volume fraction revealed that after the initial crack, the load of SIFRCCs frequently increased because of the high fiber volume fraction. In addition to maximum strength, acceptable strength was found, which could have a positive effect on brittle fractures in structures where an accidental load is applied (such as an impact or explosion).https://www.mdpi.com/2076-3417/10/6/2072slurry-infiltrated fiber-reinforced cementitious composites (sifrccs)flexural behaviorflexural strengthtoughnessfiber volume fractionunexpected load |
| spellingShingle | Seungwon Kim Cheolwoo Park Yongjae Kim Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior Applied Sciences slurry-infiltrated fiber-reinforced cementitious composites (sifrccs) flexural behavior flexural strength toughness fiber volume fraction unexpected load |
| title | Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior |
| title_full | Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior |
| title_fullStr | Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior |
| title_full_unstemmed | Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior |
| title_short | Effect of SIFRCCs with Varying Steel Fiber Volume Fractions on Flexural Behavior |
| title_sort | effect of sifrccs with varying steel fiber volume fractions on flexural behavior |
| topic | slurry-infiltrated fiber-reinforced cementitious composites (sifrccs) flexural behavior flexural strength toughness fiber volume fraction unexpected load |
| url | https://www.mdpi.com/2076-3417/10/6/2072 |
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