用不同的方法对水泥复合材料进行纤维降解处理
Tsion Amsalu Fode1,2,3, Yusufu Abeid Chande Jande4,5, Thomas Kivevele4,5
1School of Materials, Energy, Water and Environmental Sciences (MEWES), The Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania. fodet@nm-aist.ac.tz.
Scientific reports
|February 15, 2026
概括
使用 Bentonite,性溶液或热量的纤维处理提高了耐用性,并减少了水的吸收在水泥复合材料. 这些改进导致砂的机械性能更好,使西萨尔成为更可行的可持续建筑材料.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 天然纤维复合材料的复合材料
背景情况:
- 来自Agave sisalana的Sisal纤维在混凝土中提供了好处,但由于水泥材料和水分而降解.
- 目前用于西萨尔纤维的表面处理方法存在局限性,它们的综合作用尚未得到充分理解.
- 在水泥复合材料中的天然纤维的耐用性对于可持续建筑至关重要.
研究的目的:
- 系统地评估化本顿石,性溶液 (5%和10%NaOH) 和热处理 (150°C和200°C) 对西萨尔纤维降解的有效性.
- 确定这些处理对西萨尔纤维物理和机械性能的影响.
- 为了评估当被纳入基于水泥的材料处理的西萨尔纤维的性能.
主要方法:
- 纤维使用烧焦的本托尼特,不同度的氧化 (NaOH) 和在150°C和200°C的热处理处理.
- 经过处理和未经处理的纤维经历了10次湿和干燥周期,以评估耐用性.
- 测量了纤维的吸水率,高温时的质量损失,以及纤维的机械性能 (折断负荷).
- 经过处理的西萨尔纤维被纳入砂混合物中,以评估新鲜密度,压力强度和屈曲强度.
主要成果:
- 所有处理都有效地去除了木质素和表面杂质,提高了纤维的耐用性.
- 经过5%NaOH,150°C热处理或化托尼特处理的纤维在10个循环后显著改善了断裂负载阻力 (28.95%33.37%) 和降低了吸水率 (29.27%60.95%).
- 在367°C和600°C时,化托尼特处理减少了约28-29%的纤维质量损失.
- 与未经处理的纤维砂相比,结合150°C处理或化本托尼特处理的西萨尔纤维的砂表现出28天的压力强度 (23.31%23.44%).
结论:
- 热性,性和化托尼特处理在减轻在水泥环境中的西萨尔纤维降解方面是有效的.
- 这些处理提高了西萨尔纤维的耐用性,减少了水的吸收,并提高了热稳定性.
- 将经过处理的西萨尔纤维融入砂中显著提高了机械性能,将其定位为有希望的可持续增强材料.
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