用Agave Americana纤维增强增强混凝土的性能
Houda Hachem1, Insaf Mehrez2, Ramla Gheith2
1Energy Research and Technology Center (CRTEn), BP 95, Hammam-Lif 2050, Tunisia.
ACS omega
|March 4, 2024
概括
在非水泥应用中,Agave Americana纤维 (AAF) 可以显著提高混凝土的性能,在非水泥应用中,可提高曲和压力强度,分别高达99%和86%. 然而,由于性降解,不建议使用AAF用于基于水泥的混凝土.
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.
- 可持续建筑 可持续建筑
背景情况:
- 传统的混凝土材料在可持续性和耐久性方面面临着挑战.
- 天然纤维为混凝土钢筋提供了一个潜在的环保替代品.
- 阿加维美洲纤维 (AAF) 具有独特的特性,适用于材料增强.
研究的目的:
- 研究Agave Americana纤维 (AAFs) 对混凝土物理和机械性能的影响.
- 评估AAF在各种混凝土混合比例中的性能.
- 确定AAF适用于不同的混凝土基质的适用性,包括水泥和非水泥粘合剂.
主要方法:
- 提取和描述AAF,包括化学结构,结晶性,形态和抗拉强度分析.
- 系统地制备混凝土混合物,其中AAF的比例各不相同.
- 评估混凝土的特性,如密度,吸水能力,屈曲强度和压力强度.
- 微结构分析以了解纤维-矩阵相互作用.
主要成果:
- 提取的AAF具有较低的纤维素含量 (约41.34%的结晶度) 和粗的表面形态.
- 将AAF水平加入泥混凝土中,可提高曲阻力高达99%,压力阻力高达86%.
- 由于性环境,AAFs在基于水泥的混凝土中显示出降低的耐用性和机械阻力,随着度的增加,性能下降.
结论:
- 阿加维美洲纤维 (AAF) 是非水泥混凝土的有效增强剂,可显著提高机械性能.
- 基于水泥的混凝土的性质会对AAF的耐用性产生负面影响,使其不适合此类应用.
- 在非水泥混凝土中使用AAF是一种可持续和有弹性的建筑材料解决方案.
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