生态友好型砂与油漆泥灰灰
Solomon Asrat Endale1, Mitiku Damtie Yehualaw1, Woubishet Zewdu Taffese2,3
1Faculty of Civil and Water Resource Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar P.O. Box 26, Ethiopia.
Materials (Basel, Switzerland)
|May 14, 2025
概括
工业涂料污泥灰 (PSA) 可以替代砂中的水泥,提高强度和耐用性. 这种可持续的方法减少了建筑成本和废物处理问题.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 土木工程 土木工程是指土木工程.
背景情况:
- 由于水泥的高能量强度和污染,传统的混凝土生产对环境造成了巨大的负担和成本.
- 工业涂料污泥灰 (PSA) 是一种危险的废物,通常用于垃圾填埋场,带来环境和后勤方面的挑战.
研究的目的:
- 调查使用工业涂料污泥灰 (PSA) 作为砂中部分水泥替代物的可行性.
- 评估PSA结合对砂新鲜度,机械性,耐久性和微观结构性质的影响.
- 评估PSA作为可持续和成本有效的建筑材料的潜力.
主要方法:
- 用PSA制备砂混合物,以0%至20%的水平 (5%的增量) 取代水泥.
- 评估的新鲜性质 (可加工性,设置时间),机械性质 (压力强度,密度,超声波脉冲速度) 和耐用性 (吸水性,硫酸盐抗性,多孔性).
- 进行微结构分析 (SEM,XRD,TGA/DTA,FTIR) 以了解属性变化.
主要成果:
- 增加的PSA含量对可加工性和设置时间产生了负面影响,但改善了对正常一致性的水需求.
- 压力强度,散密度和超声波脉冲速度随着PSA更换增加到15%.
- 耐久性特性,如硫酸盐耐受性和多孔性,提高到15%的PSA,在10%的PSA下观察到最佳性能.
- 微观结构分析证实了砂密度增加和 PSA 含量改善的组成.
结论:
- 工业涂料污泥灰 (PSA) 是一种可行的补充水泥材料.
- 部分用PSA取代水泥,可达到15%,提高了砂的机械性能和耐久性.
- 在建筑中使用PSA可以通过减少水泥消耗和垃圾填埋来为环境带来好处,同时也降低成本.
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