地质聚合物混凝土与循环聚合物和铜渣作为细聚合物的热和机械性能
Anasuya Sahu1, Pramod Kumar2, Bheem Pratap3
1Department of Civil Engineering, Institute of Technology, Nirma University, Ahmedabad, 382481, Gujarat, India.
Scientific reports
|August 7, 2025
概括
这项研究探讨了使用回收粗聚合物 (RCA) 和铜渣 (CS) 的可持续地质聚合物混凝土. 加入CS显著增强了机械和热性能,提供了更好的耐火性和减少对自然资源的依赖.
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:
- 地质聚合物混凝土为普通波特兰水泥混凝土提供了一个可持续的替代方案.
- 自然聚合物的枯竭需要在混凝土生产中使用回收和废物材料.
- 回收粗聚合物 (RCA) 和铜渣 (CS) 被调查为天然聚合物的潜在替代品.
研究的目的:
- 评估包含RCA和CS的地质聚合物混凝土的热性能和机械性能.
- 确定RCA和CS的最佳替代水平,以提高混凝土的性能.
- 为了评估这种可持续混凝土在高温下的行为.
主要方法:
- 地质聚合物混凝土是使用飞灰 (FA) 和用NaOH激活的地面颗粒高炉渣 (GGBS) 合成的.
- 回收粗聚合物 (RCA) 取代了30%的天然粗聚合物.
- 铜渣 (CS) 在基于RCA的地质聚合物混凝土中以不同比例 (高达100%) 取代了天然细聚合物.
- 机械性能 (压力,分拉力,屈曲强度) 在环境和高温 (高达700°C) 中进行了测试.
主要成果:
- 与对照混合物相比,铜渣 (CS) 集成提高了机械性能高达45%,剩余热性能高达41%.
- 为了获得最大的机械性能,最优的混合设计被发现为30%的RCA和40%的CS.
- 地质聚合物混凝土在高温下表现出更好的性能,表明其耐火性得到了改善.
结论:
- 在地聚合物混凝土中使用RCA和CS是创建可持续建筑材料的可行策略.
- 铜渣有效地提高了用回收聚合物的地聚合物混凝土的机械和热稳定性.
- 这种方法有助于节约资源,减少建筑行业对环境的影响.
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