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对水泥添加剂的环保方法:利用废橄种粉末作为生物聚合物添加剂
Şevket Onur Kalkan1, Lütfullah Gündüz2
1Civil Engineering Department, İzmir Katip Çelebi University, İzmir, Turkey. sevketonur.kalkan@ikcu.edu.tr.
Environmental science and pollution research international
|October 22, 2024
概括
橄种子作为生物添加剂增强了水泥砂的流动性和疏水性. 虽然最初阻碍了水合,但较高度提高了150天的强度,为化学添加剂提供了可持续的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
- 废弃物价值化 废弃物价值化 废弃物价值化
背景情况:
- 将有机废物整合到水泥材料中,通过减少填埋垃圾和潜在减少波特兰水泥使用,为环境带来了好处.
- 橄种子是一种有机废物,显示出在水泥制品中作为有益的添加剂的潜力.
- 开发环保添加剂对于可持续建筑实践至关重要.
研究的目的:
- 研究一种从橄种子中提取的新型生物聚合物添加剂对水泥砂物理和机械性能的影响.
- 描述橄种子生物添加剂,并分析其对水泥水化和硬质砂特性的影响.
- 评估橄种子作为传统化学添加剂的可持续,可生物降解的替代品.
主要方法:
- 橄种子被加工成0/125微米的生物聚合物添加剂,并以不同百分比 (0-1.5%) 加入到水泥砂中.
- 橄种子添加剂的表征包括XRD,FT-IR和提取剂,pectin,纤维素,半纤维素和素含量的确定.
- 使用SEM/EDS和XRD分析了水化产品;评估了物理和机械性能 (单位重量,流动性,定位时间,压力/弹性强度,吸水能力).
主要成果:
- 生物添加剂最初阻碍了低速的水泥水化,但在更高的速度促进了水泥水化.
- 28天后压力和屈曲强度下降,但在1.5重%的混合物下观察到150天压力强度略有增加.
- 随着生物添加剂含量增加,可流动性和疏水性 (降低水的吸收) 显著改善.
结论:
- 来自橄种子的生物聚合物添加剂对水流性,定时间 (延迟剂) 和水性有有益影响.
- 它为化学添加剂提供了一个有希望的天然和生物降解的替代品,提供了可比的机械性能,特别是在更高的剂量和更长的固化时间下.
- 这项研究突出了利用橄废料在建筑材料中的潜力,以提高可持续性.
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