热解温度对水泥砂中麦芽生物炭性能的影响
Roza Shainova1, Nelli Muradyan1, Avetik Arzumanyan1
1Faculty of Construction, National University of Architecture and Construction of Armenia, 105 Teryan Street, Yerevan 0009, Armenia.
Materials (Basel, Switzerland)
|November 27, 2025
概括
优化的麦芽生物炭提高了水泥砂的性能. 热解温度影响生物炭的特性,从而提高了水泥材料的强度和耐久性,促进了可持续性.
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:
- 工业麦芽废弃物带来了处置方面的挑战.
- 生物炭生产为废物利用提供了一条途径.
- 水泥生产对环境产生重大影响.
研究的目的:
- 为了研究热解温度对麦芽生物炭性质的影响.
- 为了评估麦芽生物炭对水泥砂性能的影响.
- 探索从工业副产品中获得的可持续建筑材料.
主要方法:
- 在300°C和500°C下进行烧解以产生生物炭 (BC300,BC500) 的麦芽生物质.
- 通过高能球磨生产的纳米级生物炭.
- 物理化学表征 (FTIR,拉曼,XRD,BET,SEM,XRF) 进行.
- 与BC500 (0.25-1.0重量%) 结合的水泥砂,有/没有超级塑化剂.
主要成果:
- 与BC300相比,BC500呈现出更高的石墨排序,更大的表面积 (110 m2/g) 和更小的毛孔.
- 使用BC500的水泥砂显示压力强度增加了20.6%.
- 在生物炭改性砂中观察到水吸收的显著减少.
- 改进归因于内部固化,精细的孔隙结构和改进的粘合.
结论:
- 优化的麦芽生物炭提高了水泥砂的机械性能和耐用性.
- 麦芽生物炭作为一种可持续的添加剂,使工业废物有价值.
- 这种方法支持循环经济原则,并减少水泥的环境足迹.
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