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Experimental Study on Compressive and Flexural Performance of Lightweight Cement-Based Composites Reinforced with Hybrid Short Fibers.
| Content Provider | Europe PMC |
|---|---|
| Author | Dang, Cong-Thuat Pham, My Dinh, Ngoc-Hieu |
| Editor | Ismail, Mohamed K. Elansary, Ahmed A. Gomaa, Eslam |
| Copyright Year | 2023 |
| Abstract | This paper aims to experimentally study the compressive and flexural characteristics of cement-based composites developed for fabricating thin, lightweight, and high-performance components of buildings. Expanded hollow glass particles with a 0.25-0.5 mm particle size were used as lightweight fillers. Hybrid fibers made of amorphous metallic (AM) and nylon fibers were used to reinforce the matrix with a total volume fraction of 1.5%. The primary test parameters included the expanded glass-to-binder (EG/B) ratio, the fiber volume content ratio, and the length of the nylon fibers in the hybrid system. The experimental results demonstrate that the EG/B ratio and the volume dosage of the nylon fibers exhibited insignificant effects on the compressive strength of the composites. Additionally, the utilization of nylon fibers with a longer length of 12 mm resulted in a slight compressive strength reduction of approximately 13% compared to that of the 6 mm nylon fibers. Further, the EG/G ratio exhibited an insignificant effect on the flexural behavior of lightweight cement-based composites in terms of their initial stiffness, strength, and ductility. Meanwhile, the increasing AM fiber volume fraction in the hybrid system from 0.25% to 0.5% and 1.0% improved flexural toughness by 42.8% and 57.2%, respectively. In addition, the nylon fiber length significantly affected the deformation capacity at the peak load and the residual strength in the post-peak stage. |
| Journal | Materials (Basel) |
| Volume Number | 16 |
| DOI | 10.3390/ma16124457 |
| PubMed Central reference number | PMC10305428 |
| Issue Number | 12 |
| PubMed reference number | 37374640 |
| e-ISSN | 19961944 |
| Language | English |
| Publisher | Molecular Diversity Preservation International (MDPI) |
| Publisher Date | 2023-06-19 |
| Access Restriction | Open |
| Subject Keyword | fiber-reinforced cement-based composites short fibers compressive strength flexural strength tensile toughness |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Materials Science |
