生物炭添加对活性化材料特性的影响
Andrea Saccani1, Luca Baldazzi1, Stefania Manzi1
1Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
Materials (Basel, Switzerland)
|February 13, 2025
概括
将生物炭添加到激活的甲醇糊中,可以提高压力强度,并降低低百分比的水吸收. 较高的生物炭含量提高了尺寸稳定性,并减少了这些先进的水泥材料中的花.
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.
- 可持续建筑 可持续建筑
背景情况:
- 将生物炭添加到波特兰水泥中可以提高材料的性能.
- 生物炭对活性化材料,如甲甲粉末的影响,仍未得到充分研究.
- 活性粘合剂为传统波特兰水泥提供了一个可持续的替代品.
研究的目的:
- 调查不同生物炭含量对基酸激活糊的物理和机械性能的影响.
- 为了确定生物炭是否可以有益地影响活性结合剂的性能.
- 评估通过加入生物炭来提高耐用性和稳定性的潜力.
主要方法:
- 制备具有不同生物碳结合水平 (重量百分比) 的甲甲胺糊.
- 物理性质的分析,包括通过毛细体吸收水的分析.
- 评估机械性能,特别是压力强度随时间 (28天) 的发展.
- 对尺寸稳定性和花形成的评估.
主要成果:
- 在28天内,微量添加生物炭 (<2重%) 显著增加了最大15%的压力强度.
- 低生物炭含量导致毛细血管吸收水的减少,这表明耐用性得到改善.
- 较高的生物炭含量 (>2重%) 降低了机械性能,但提高了尺寸稳定性.
- 发现增加生物炭含量可以减少花朵的形成.
结论:
- 生物炭可以成为活性化甲醇粉的有益添加剂,特别是在低度下.
- 最佳的生物炭含量可以提高压力强度和耐久性,而更高的含量可以提高稳定性并减少花.
- 对生物炭改性活性材料的进一步研究可能会导致更耐用和可持续的建筑部件.
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