Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical
Hybrid fibre-reinforced cementitious composites (HFRCCs) have demonstrated super engineering performance in terms of strengths, toughness, ductility and durability since the hybrid fibre effect can be positively activated when the hybrid ratio of polyvinyl alcohol (PVA) and steel fibres falls in an...
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525001007 |
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| author | Gang Chen Mingyan Lv Haitang Zhu Jianwen Zhang Le Zhang |
| author_facet | Gang Chen Mingyan Lv Haitang Zhu Jianwen Zhang Le Zhang |
| author_sort | Gang Chen |
| collection | DOAJ |
| description | Hybrid fibre-reinforced cementitious composites (HFRCCs) have demonstrated super engineering performance in terms of strengths, toughness, ductility and durability since the hybrid fibre effect can be positively activated when the hybrid ratio of polyvinyl alcohol (PVA) and steel fibres falls in an appropriate range. However, the appropriate hybrid ratio for achieving a positive hybrid effect needs to be explored. In addition, currently available analytical/statistical models for predicting the strength of HFRCCs are far from satisfactory and, therefore, need to be improved. In this study, compressive and flexural tensile tests were carried out to investigate the compressive and flexural tensile strengths of HFRCCs. The experimental results show that increasing the water/cement ratio would dramatically reduce the compressive strength of HFRCCs, but marginally reduce their flexural tensile strength. With the steel fibre volume ratio up to 0.75 vol%, the HFRCCs with 0.15 vol% steel fibres and 1.5 vol% PVA fibres exhibit the highest compressive and flexural tensile strengths. With the PVA fibre volume ratio up to 1.5 vol%, the flexural tensile strength of HFRCCs increases but their compressive strength decreases with the increase of the PVA fibre volume ratio. The hybrid fibre effect on compressive and tensile strengths collected from the literature was calibrated and compared by using four analytical models for strength. Their performance was evaluated against the experimental data from this study and the literature. Then, the hybrid fibre ratio (in terms of volume fraction) for the best hybrid effect on HFRCC strength was proposed. Through analysing numerous experimental data from this study and the literature, an analytical model that can explicitly consider fibre volume fraction and fibre aspect ratio was modified to predict the compressive and tensile strengths of HFRCCs. It has been found that the modified analytical model gives a better prediction of compressive and flexural tensile strengths of HFRCCs. |
| format | Article |
| id | doaj-art-65c0a1a4c5ed4aa1910a9a178ff8af6d |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
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| series | Case Studies in Construction Materials |
| spelling | doaj-art-65c0a1a4c5ed4aa1910a9a178ff8af6d2025-01-26T05:03:53ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04301Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analyticalGang Chen0Mingyan Lv1Haitang Zhu2Jianwen Zhang3Le Zhang4School of Civil Engineering, Henan University of Engineering, Zhengzhou, Henan 451191, China; School of Architecture, Building and Civil Engineering, Loughborough University, Loughborough LE11 3TT, UKSchool of Civil Engineering and Transportation, North China University of Water Resources and Electric Power, Zhengzhou, Henan 450003, China; Corresponding author.School of Civil Engineering, Henan University of Engineering, Zhengzhou, Henan 451191, ChinaSchool of Civil Engineering, Henan University of Engineering, Zhengzhou, Henan 451191, ChinaChina Yangtze Power Renewables Co., Ltd., Wuhan, Hubei 430015, ChinaHybrid fibre-reinforced cementitious composites (HFRCCs) have demonstrated super engineering performance in terms of strengths, toughness, ductility and durability since the hybrid fibre effect can be positively activated when the hybrid ratio of polyvinyl alcohol (PVA) and steel fibres falls in an appropriate range. However, the appropriate hybrid ratio for achieving a positive hybrid effect needs to be explored. In addition, currently available analytical/statistical models for predicting the strength of HFRCCs are far from satisfactory and, therefore, need to be improved. In this study, compressive and flexural tensile tests were carried out to investigate the compressive and flexural tensile strengths of HFRCCs. The experimental results show that increasing the water/cement ratio would dramatically reduce the compressive strength of HFRCCs, but marginally reduce their flexural tensile strength. With the steel fibre volume ratio up to 0.75 vol%, the HFRCCs with 0.15 vol% steel fibres and 1.5 vol% PVA fibres exhibit the highest compressive and flexural tensile strengths. With the PVA fibre volume ratio up to 1.5 vol%, the flexural tensile strength of HFRCCs increases but their compressive strength decreases with the increase of the PVA fibre volume ratio. The hybrid fibre effect on compressive and tensile strengths collected from the literature was calibrated and compared by using four analytical models for strength. Their performance was evaluated against the experimental data from this study and the literature. Then, the hybrid fibre ratio (in terms of volume fraction) for the best hybrid effect on HFRCC strength was proposed. Through analysing numerous experimental data from this study and the literature, an analytical model that can explicitly consider fibre volume fraction and fibre aspect ratio was modified to predict the compressive and tensile strengths of HFRCCs. It has been found that the modified analytical model gives a better prediction of compressive and flexural tensile strengths of HFRCCs.http://www.sciencedirect.com/science/article/pii/S2214509525001007Hybrid fibre reinforced cementitious compositesHybrid fibre effectCompressive strengthTensile strength |
| spellingShingle | Gang Chen Mingyan Lv Haitang Zhu Jianwen Zhang Le Zhang Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical Case Studies in Construction Materials Hybrid fibre reinforced cementitious composites Hybrid fibre effect Compressive strength Tensile strength |
| title | Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical |
| title_full | Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical |
| title_fullStr | Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical |
| title_full_unstemmed | Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical |
| title_short | Towards compressive and tensile strengths of hybrid steel and PVA fibre-reinforced cementitious composites: Experimental and analytical |
| title_sort | towards compressive and tensile strengths of hybrid steel and pva fibre reinforced cementitious composites experimental and analytical |
| topic | Hybrid fibre reinforced cementitious composites Hybrid fibre effect Compressive strength Tensile strength |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525001007 |
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