用一次性面具条纹增强的建筑砂的机械行为
René Sebastián Mora-Ortiz1, Ebelia Del Angel-Meraz1, Sergio Alberto Díaz1
1División Académica de Ingeniería y Arquitectura (DAIA), Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa de Méndez km. 1, Cunduacán 86690, Tabasco, Mexico.
Materials (Basel, Switzerland)
|November 27, 2024
概括
将一次性面罩 (FMs) 回收为体砂显示出有希望. 小额添加 (高达0.2%) 可以提高曲和拉伸强度,而不会显著影响其他特性,从而有助于可持续的材料使用.
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.
- 环境科学 环境科学
背景情况:
- 越来越多的环保问题涉及一次性面罩 (FM) 塑料废弃物.
- 需要可持续的建筑材料和废物回收利用战略.
研究的目的:
- 为了实验性地分析采用回收FM的造砂的机械行为.
- 评估使用FMs作为砂混合物的可持续添加剂的可行性.
主要方法:
- 制备各种比例 (0%至1.5%) 的FM条纹 (3x3mm和3x10mm) 的砂混合物.
- 物理性质的评估:干燥散装密度,可透的空隙,吸水能力和空气含量.
- 机械性质的评估:压力强度,曲强度,拉力强度和28天硬化后的剪接强度.
主要成果:
- 结合高达0.2%的FM条带对3x10毫米条带的柔性 (增加6%) 和拉伸强度 (增加1.4%) 产生了积极的影响.
- 在0.2%的FM添加时,没有观察到对密度,空气含量,压力和剪接键强度的显著不良影响.
- 较高的FM百分比没有产生一致的改善,可能会产生不利影响.
结论:
- 将FM回收为体砂是一种可行的减少废物和减轻微塑料污染的战略.
- 最佳的FM整合 (约为0.2%) 可以增强砂的特定机械性能.
- 需要进一步的研究,以优化FM治疗和剂量,以适用于更广泛的建筑应用.
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