基于石泥渣地质聚合物的绿色接合材料:为无沟路修路的可行性和性能评估
Xiaoping Ji1, Liyuan Dong1, Xiaojuan Li2
1School of Highway, Chang'an University, Xi'an 710064, China.
Materials (Basel, Switzerland)
|November 13, 2025
概括
这项研究开发了一种可持续的粘合材料,使用工业废物,如石膏和废渣. 新的基于石泥的地质聚合物 (PBG) 接合材料为无道道路维修提供了更好的强度和更少的收缩.
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.
- 环境工程 环境工程
背景情况:
- 传统的基于水泥的接材料表现出显著的收缩和低的早期强度,阻碍了它们在无道道路维修中的有效性.
- 工业固体废物,如石膏和渣,为开发可持续建筑材料提供了机会.
- 需要环保和高性能接解决方案来减轻环境影响并提高基础设施的耐用性.
研究的目的:
- 开发一种可持续的接材料,使用合石和渣的协同合成.
- 评估开发的基于石泥的地质聚合物 (PBG) 接材料的可加工性,机械性能,耐用性和环境安全性.
- 分析PBG接材料的强度发展机制,有毒物质固定和碳足迹.
主要方法:
- 使用工业固体废物的石泥基地质聚合物 (PBG) 的协同合成.
- 对粘合剂与沙子和水与固体的比率对PBG可操作性和性能进行系统评估.
- 分析机械强度,耐久性 (不透性,抗解) 和使用SEM和标准测试协议的有毒物质漏.
- 碳足迹分析以评估环境效益.
主要成果:
- 通过0.28的水与固体比率和0.70-0.75.75的粘合剂与沙子比率实现了最佳PBG性能.
- 开发的接材料具有理想的可加工性 (流动性160-240毫米),设置时间 (>30分钟初始,<400分钟最终),流血率低 (<0.4%),28天压力强度≥9.0MPa.
- 在较高的粘合剂与沙子比率下,观察到更好的不透性和抗解性.
- 毒性物质的漏符合三级地下水质量标准,并且证实了显著的碳排放减少.
结论:
- 开发的基于石泥的地质聚合物 (PBG) 接合材料为传统的基于水泥的材料提供了可持续和高性能的替代品.
- 接材料具有出色的机械性能,耐用性和环境安全性,使其适合无沟道路维修.
- 在PBG合成中利用工业固体废物可以显著减少与接材料相关的碳足迹.
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