轻质三明治板的柔性行为与米皮生物聚合物混凝土核心和Sisal纤维增强泡式水泥面
Daniele Oliveira Justo Dos Santos1, Paulo Roberto Lopes Lima2, Romildo Dias Toledo Filho1
1Postgraduate Program in Civil Engineering, Federal University of Rio de Janeiro, Rio de Janeiro 21945-970, RJ, Brazil.
Materials (Basel, Switzerland)
|May 7, 2025
概括
这项研究使用米生物聚合物 (RHB) 和泡式水泥复合材料开发了可持续的轻质三明治面板. 最佳的20%泡混合物证明了在面板中的高效使用,平衡了可持续性和机械性能.
科学领域:
- 可持续建筑材料 可持续建筑材料
- 复合材料工程是复合材料的工程.
- 在建筑材料中利用废弃物.
背景情况:
- 建筑行业对环境产生重大影响,需要可持续和节能材料.
- 农业工业废物,如米,为开发环保建筑元件提供了机会.
- 轻量级的三明治板提供了降低结构负载和提高热性能的潜力.
研究的目的:
- 开发和评估一种新的轻量级三明治面板,在轻量级混凝土核心和泡式水泥复合材料表面中使用大米生物聚合物 (RHB).
- 调查泡剂含量和大米皮生物聚合物的百分比对面板组件的机械性能和密度的影响.
- 评估开发的三明治板的性能,以便在可持续建筑中潜在应用.
主要方法:
- 生产泡式水泥复合材料,其泡剂含量各不相同 (15%,20%,30%和4%的西萨尔纤维).
- 轻质混凝土芯的制备,其皮生物聚合物 (RHB) 的百分比不同 (50%,60%,70%).
- 评估材料密度,直接压缩强度,四点曲行为和三明治板的剪切性能.
主要成果:
- 泡式水泥复合材料的泡体积为20%,在三明治面板面上表现出最高的效率.
- 轻量级的三明治板生产的密度从670到1000公斤/米3.
- 面部复合材料中的西萨尔纤维抑制了裂的传播,导致偏向硬化行为;然而,增加的RHB含量降低了面板的强度和性.
结论:
- 开发的轻量级三明治面板采用大米生物聚合物,显示出可持续建筑的前景.
- 优化面膜材料中的泡含量对于实现所需的机械性能至关重要.
- 可能需要进一步的研究来缓解与较高的米含量相关的强度和性降低.
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