矿物添加剂对聚合物反应性的影响
Grzegorz Rogojsz1, Tomasz Rudnicki1
1Faculty of Civil Engineering and Geodesy, Military University of Technology, 2 Gen. Sylwestra Kaliskiego Str., 00-908 Warsaw, Poland.
Materials (Basel, Switzerland)
|January 11, 2025
概括
矿物添加剂可以降低聚合物的性反应性,使得在水泥混凝土道路施工中使用低档材料成为可能. 白色微二氧化被证明是最有效的,显著降低了反应性.
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.
- 地质技术工程 地质技术工程
背景情况:
- 由于高质量聚合物的供应减少,因此需要探索用于水泥混凝土道路建设的替代方案.
- 聚合物的性反应性可能会损害混凝土结构的耐用性和性能.
- 需要进行研究,以确定有效的方法来减轻聚合反应性.
研究的目的:
- 评估各种矿物添加剂对聚合物的性反应性的影响.
- 为了确定具有高性反应性的低级聚合物是否可以使其适合使用.
- 为了确定最有效的矿物添加剂来降低聚合性反应性.
主要方法:
- 实验室测试对选定的矿物添加剂进行了测试:密度微,白色微,石灰粉,玻璃粉,玄武岩粉和玻璃颗粒.
- 矿物添加剂被纳入总样中的重量分别为10%和20%.
- 用标准的NaOH溶液测试对公路聚合物的性反应性进行了评估.
主要成果:
- 白色微石证实了总性反应率的显著降低,在10%的添加时降低了76.7%,在20%的添加时降低了95.8%.
- 然而,压缩的微二氧化增加了9.3% (10%的添加) 和20.9% (20%的添加) 的性反应性.
- 其他测试的矿物添加剂对聚合物反应性产生不同程度的影响.
结论:
- 聚合物的性反应性可以有效地减少使用特定的矿物添加剂,特别是白色微.
- 这项研究支持了以前不适合在水泥混凝土道路建设中的反应性聚合物的潜在使用.
- 矿物添加剂的选择对于减轻不良影响和提高总体性能至关重要.
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