CO2 加速碳化改性用于各种原始混凝土强度和粗体聚合物尺寸的回收粗体聚合物
Wei Qin1, Xinhui Fan2, Xiaohui Jiang2
1School of Economics and Management, Chongqing Jiaotong University, 66 Xuefu Road, Nan'an District, Chongqing 400074, China.
Materials (Basel, Switzerland)
|July 27, 2024
概括
回收聚合物 (RAs) 可以通过捕获二氧化碳来增强. 本研究量化了原始混凝土强度和粗聚合物尺寸如何影响RAs的加速碳化过程.
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:
- 越来越多的混凝土需求耗尽了自然资源,增加了混凝土的浪费.
- 回收聚合物 (RAs) 具有可变的特性,限制了它们在钢筋混凝土 (RC) 组件中的使用.
- 酸盐的聚合物特性为二氧化碳捕获和性能增强提供了潜力.
研究的目的:
- 研究原始混凝土强度 (OCS) 和粗聚合物尺寸 (CAS) 对回收聚合物的加速碳化 (RAs) 的影响.
- 量化描述OCS和CAS对RA性能增强的影响.
- 确定最佳的OCS和CAS,以有效地加速RA的碳化修饰.
主要方法:
- 在干燥条件下对回收粗聚合物 (RCA) 样本进行加速碳化试验.
- 分析了RCA在碳化前后与OCS和CAS相关的物理性质变化.
- 检查了RCA的微观形态,以了解财产增强机制.
主要成果:
- 揭示了在加速碳化过程中受OCS和CAS影响的RCA物理性质的变化规律.
- 量化了OCS和CAS对RCAs财产增强的影响.
- 确定了特定的OCS和CAS值,产生最佳的加速碳化效应.
结论:
- 加速碳化有效增强RA特性,OCS和CAS是关键影响因素.
- 了解这些因素对于优化RA修改和促进其在建筑中的应用至关重要.
- 该研究为RA加速碳化修饰的理论研究提供了基础的见解.
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