对大麻石灰的物理,微观结构和机械性能进行实验调查
Siva Avudaiappan1, Pablo Ignacio Cuello Moreno2, Luis Felipe Montoya R2
1Departamento de Ciencias de la Construcción, Facultad de Ciencias de la Construcción y Ordenamiento Territorial, Universidad Tecnológica Metropolitana, Santiago, Chile. s.avudaiappan@utem.cl.
Scientific reports
|December 19, 2023
概括
这项研究考察了可再生建筑材料 - - 大麻石灰. 砂的最佳麻纤维含量为2-4%,增强曲强度和隔热,同时保持压力强度.
科学领域:
- 建筑材料科学 建筑材料科学
- 可持续建筑 可持续建筑
- 材料工程 材料工程 材料工程
背景情况:
- 大麻石灰被探索为环保建筑材料,先前的研究重点是非结构性用途.
- 一种新的大麻石灰制剂表现出有前途的机械和微观结构特性.
- 传统建筑材料面临着对环境影响的严格审查,这推动了对可持续替代品的需求.
研究的目的:
- 为了研究一种新的大麻石灰混凝土复合材料的机械和微观结构性能.
- 为了确定最佳的麻纤维含量和长度,用于麻石灰应用.
- 评估大麻石灰混凝土作为传统混凝土的可持续替代品的潜力.
主要方法:
- 用不同长度和比例的麻纤维与石灰混合制备的标本.
- 测试包括压力强度,屈曲强度和导热性.
- 微结构分析使用扫描电子显微镜 (SEM) 和能量分散X射线光谱 (EDS).
主要成果:
- 对砂的最佳麻纤维含量被确定为2%至4%之间.
- 柔性强度随着纤维含量增加而增加,而压力强度下降但仍然可行 (≥3.48 MPa与2%的纤维).
- 大麻石灰显示出良好的隔热,尺寸稳定性和较高纤维含量 (> 4%) 的干单位重量降低.
结论:
- 大麻石灰含有2-4%的纤维含量,提供了机械性能和增强性能的平衡.
- 该材料具有良好的隔热和尺寸稳定性,适合可持续建筑.
- 大麻石灰混凝土在特定应用中为传统混凝土提供了一个可行的,环保的替代品,特别是在可持续性是关键的地方.
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