Abstract
AbstractThis study investigated the mechanical properties and the effects of the volume fraction for carbon fibers (CF-VF), polypropylene fibers (PPF-VF) and aramid fibers (AF-VF) with a fixed aspect ratio of 650 for the carbon fibers, 400 for the polypropylene fibers and 900 for the aramid fibers in hybrid fiber-reinforced concrete (HFRC). Furthermore, compressive, splitting tensile and flexural tensile tests were carried out to obtain the optimal total volume fraction for the three types of fibers, as well as the optimal ratio between the CF-VF, PPF-VF and AF-VF. In addition, stress–strain curves of normal concrete and HFRC were examined to explore the whole mechanical process. The results indicated the CF-VF, PPF-VF and AF-VF have a significant effect on the tensile and flexural strengths of HFRC. The HFRC with a fiber additional ratio of 25:50:25 had the best hybrid effect. Moreover, a calculation method based on the compressive strength of normal concrete and HFRC and the volume fraction is proposed to calculate the strength of HFRC in engineering as a reference. Besides, a uniaxial compression constitutive mathematical model of normal concrete and HFRC is established.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Shaanxi Province
Natural Science Foundation of Jiangsu Province
Fundamental Research Funds for the Central Universities
Publisher
Springer Science and Business Media LLC
Subject
Ocean Engineering,Civil and Structural Engineering
Reference40 articles.
1. Alimohammadi, H., Lotfollahi-Yaghin, M., & Esfahani, M. (2019). Effects of different parameters on inelastic buckling behavior of composite concrete-filled steel tubes. International Research Journal of Engineering and Technology, 6(12), 1–16.
2. Alimohammadi, H., Dastjerdi, K., & Yaghin, M. (2020). The study of progressive collapse in dual systems. Civil and Environmental Engineering, 16(1), 1–7. https://doi.org/10.2478/cee-2020-0009
3. Balcikanli Bankir, M., & Sevim, U. K. (2020). Performance optimization of hybrid fiber concrete according to mechanical properties. Construction and Building Materials, 261(2020), 1–18. https://doi.org/10.1016/j.conbuildmat.2020.119952
4. Bolat, H., Şimşek, O., Çullu, M., Durmuş, G., & Can, Ö. (2014). The effects of macro synthetic fiber reinforcement use on physical and mechanical properties of concrete. Composites Part B: Engineering, 61, 191–198. https://doi.org/10.1016/j.compositesb.2014.01.043
5. Bolooki Poorsaheli, H., Behravan, A., & Tabatabaei Aghda, S. T. (2021). Durability performance of hybrid reinforced concretes (steel fiber+polyolefin fiber) in a harsh marine tidal zone of Persian Gulf. Construction and Building Materials, 266(2021), 1–11. https://doi.org/10.1016/j.conbuildmat.2020.121176
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