钢渣粉改性青杆的风学和微观结构特征:深入了解高温性能提升的方法
Xiaodong Xie1,2, Jie Gao3, Zongjie Yu1,2
1Xinjiang Academy of Transportation Sciences Co., Ltd., Urumqi 830000, China.
Materials (Basel, Switzerland)
|March 27, 2025
概括
钢渣粉 (SSP) 比石灰石粉 (LP) 更有效地提高了青杆的性能,因为它的颗粒更细,表面积更大. 这项研究提供了使用SSP作为铺路工程中的可持续填充剂的见解.
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.
- 类风病学 类风病学 类风病学
背景情况:
- 青杆在路面工程中至关重要.
- 优化填料特性是提高青性能的关键.
- 钢粉 (SSP) 是一种可持续的替代填料.
研究的目的:
- 为了研究石柱中SSP的风学修饰机制.
- 为了比较SSP的性能与传统石灰石粉 (LP).
- 为钢铁渣在路面工程中的利用提供机械洞察力.
主要方法:
- 用不同的填料与青比率 (0.6-1.2) 制备青柱.
- 使用激光衍射,BET吸附和SEM进行表征.
- 通过DSR,MSCR测试和温度扫描分析进行风病学评估.
- 用FTIR和2D-COS分析来研究界面相互作用.
主要成果:
- 与LP相比,SSP的平均颗粒大小小 (29.2%少) 和特定表面积大 (7.06%多).
- SSP显著增强了质性质,特别是在较高的填充剂与青比率 (1.0-1.2) 的情况下.
- 与LP相比,SSP提高了6.9-46.06%的不可恢复的爬行合规性 (J),并降低了9.37-18.06%的温度易感性.
- 物理相互作用主导着SSP-青接口.
结论:
- SSP既可以作为一种气质修饰剂,也可以作为一种可持续的建筑材料.
- 在SSP上,它比传统的石灰石粉具有优越的微观结构和学优势.
- 这些发现支持在路面工程中优化钢的利用.
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