Development of ultra-high performance engineered cementitious composites using polyethylene (PE) fibers
| Autor: | Surendra P. Shah, Jiangtao Yu, Kequan Yu, Zhou Dao Lu, Jian-Guo Dai |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Polyethylene Microstructure 0201 civil engineering chemistry.chemical_compound Compressive strength Flexural strength chemistry 021105 building & construction Ultimate tensile strength General Materials Science Fiber Mortar Composite material Elastic modulus Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 158:217-227 |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2017.10.040 |
| Popis: | Ultra-high performance engineered cementitious composites (UHP-ECC), which combines the strain-hardening and multiple crack characteristics and the high strength of mortar matrix, was investigated in this study. The tensile strength and elongation of the UHP-ECC achieved were 20 MPa and 8.7%, respectively. For the production of UHP-ECC, ultra-high-molecular-weight polyethylene (PE) fibers were deployed to reinforce the ultra-high strength mortar while special attention was paid to the mix process to ensure satisfactory fiber dispersion. The tensile stress-strain curves, the compressive strength and elastic modulus, and the flexural behavior of UHP-ECC were investigated to understand its mechanical performance. The digital image correlation (DIC) technique was utilized to monitor the crack patterns of UHP-ECC during the tensile and flexural tests. In addition, Scanning electron microscope (SEM) analysis was conducted to achieve an in-depth understanding of the microstructure of UHP-ECC. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect