Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
| Autor: | Yu Demei, Renhui Qiu, Ban Yang, Wei Zhi, Wendi Liu, Mingen Fei, Tengfei Fu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Absorption of water
Materials science Polymers and Plastics Aluminate 0211 other engineering and technologies 02 engineering and technology mechanical properties Article interfacial bonding lcsh:QD241-441 chemistry.chemical_compound Flexural strength lcsh:Organic chemistry 021105 building & construction bamboo fiber Composite material Natural fiber Shrinkage Cement Carbonization General Chemistry surface treatment 021001 nanoscience & nanotechnology cement mortar Compressive strength chemistry durability 0210 nano-technology |
| Zdroj: | Polymers, Vol 12, Iss 2650, p 2650 (2020) Polymers Volume 12 Issue 11 |
| ISSN: | 2073-4360 |
| Popis: | This study aims to prepare bamboo-fiber-reinforced cement composites and provide a solution to the issue of poor interfacial adhesion between bamboo fibers and cement matrix. The original bamboo fibers were modified by three moderately low-cost and easy-to-handle treatments including glycerol, aluminate ester, and silane treatments. The performance of the modified bamboo-fiber-reinforced cement composites was evaluated by a series of mechanical and durability tests, including flexural and compressive strength, water absorption, chloride ion penetration, drying shrinkage, freeze&ndash thaw resistance, and carbonization. In addition, the microstructures of composites were characterized using a scanning electron microscope (SEM). The results showed that the composites reinforced with glycerol-modified bamboo fibers had 14% increased flexural strength and comparable compressive strength. From durability perspectives, all treatments showed similar performance in drying shrinkage, whereas aluminate ester treatment was the most effective in terms of impermeability, chloride resistance, freeze&ndash thaw resistance, and carbonization. The results could provide insights to efficient and effective natural fiber treatment to enable better performance of natural-fiber-reinforced cement-based materials. |
| Databáze: | OpenAIRE |
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