开发一种包含红色泥的环保泡混凝土
Dongyu Chen1, Meizhu Chen2, Xinkui Yang1
1State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China.
概括
这项研究将红色泥 (RM) 回收成泡混凝土 (FC),发现它缩短了定时间,但降低了强度. 然而,基于RM的FC表现出较低的重金属液,使其成为可持续的建筑材料.
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:
- 红泥 (RM) 是生产中的一个有问题的工业废物.
- 可持续利用RM对于环境保护至关重要.
- 泡混凝土 (FC) 是一种轻量级的建筑材料,有可能将工业副产品纳入.
研究的目的:
- 调查使用RM作为FC中的矿物添加剂的可行性.
- 评估RM对FC性能的影响,包括可加工性,机械强度和水分.
- 为了评估重金属漏风险从基于RM的FC在模拟的雨水排水下.
主要方法:
- 用不同的RM替换百分比为水泥的FC的制备.
- 测试FC可加工性,设置时间,压力强度和微观结构性质.
- 设计和使用一个装置来模拟雨水流失,用于重金属漏试验.
- 使用先进技术分析毛孔结构和水化产品.
主要成果:
- 整合RM显著减少了FC设置时间.
- 机械性能和FC的流动性受到RM添加的负面影响.
- 具有高达60%的RM替换率的FC满足指定的压力强度要求.
- 由于水泥固化和矩阵基本性,基于RM的FC的重金属液被有效地最小化.
- 增加的RM含量导致毛孔结构恶化,毛孔性更高,毛孔连接性增加.
结论:
- 作为FC中的矿物添加剂,RM可以有效地被利用,有助于废物回收.
- 基于RM的FC展品减少了重金属漏,提高了其环境安全.
- 优化RM内容是必要的,以平衡FC应用中的性能和可持续性.
- 这项研究为建筑材料和废物管理的可持续发展提供了宝贵的见解.
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