Engineered/strain-hardening cementitious composites (ECC/SHCC) with an ultra-high compressive strength over 210 MPa
| Autor: | Huang Botao, Ke Fan Weng, Jian-Guo Dai, Yu Xiang, Victor C. Li, Ji Xiang Zhu |
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| Rok vydání: | 2021 |
| Předmět: |
Cement
Materials science Polymers and Plastics Combined use 02 engineering and technology Cementitious composite Strain hardening exponent Polyethylene 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Compressive strength chemistry Mechanics of Materials Ultimate tensile strength Materials Chemistry Ceramics and Composites Hardening (metallurgy) Composite material 0210 nano-technology |
| Zdroj: | Composites Communications. 26:100775 |
| ISSN: | 2452-2139 |
| DOI: | 10.1016/j.coco.2021.100775 |
| Popis: | Engineered/Strain-Hardening Cementitious Composites (ECC/SHCC) are fiber-reinforced cement-based materials with tensile strain-hardening and multiple-cracking characteristics. In this study, ultra-high-strength ECC (UHS-ECC) with a compressive strength over 210 MPa was successfully developed for the first time. The developed UHS-ECC exhibited excellent tensile strain capacity (5.2%), and fine crack width (72 μm). These characteristics were realized by combined use of polyethylene and steel fibers in a dense matrix. Two new material indices ( f'cftet index and f'cftet/w index) were proposed to assess the overall performance of UHS-ECC. Compared with existing high-strength ECC, the developed UHS-ECC records the highest compressive strength and the best overall performance. The findings of this study provide useful knowledge for future design and applications of UHS-ECC. |
| Databáze: | OpenAIRE |
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