当前位置: X-MOL 学术Integr. Ferroelectr. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Preparation and Performance of Carbon Nanotube Modified Cement-Based Phase Change Material in Steel Bridge Engineering
Integrated Ferroelectrics ( IF 0.7 ) Pub Date : 2022-07-28 , DOI: 10.1080/10584587.2022.2074231
Weiwei Zhan

Abstract

Carbon nanotubes have excellent mechanical, electrical and chemical stability, and they are an excellent filler for the development of high-performance, multifunctional/smart cement-based composite materials. In order to understand the preparation and performance of carbon nanotubes modified cement-based, this paper studies the effects of carbon nanotube types and content on the mechanical, electrical, and electromagnetic wave shielding/absorption properties of cement-based materials. The product phase (morphology, composition, structure and content), composite material equivalent circuit and electromagnetic parameter analysis, and fiber-reinforced cement-based composite material mechanical calculations explore the modification mechanism of carbon nanotube cement-based materials. The experimental results found that when the amount of carbon nanotube modified cement is 0–3%, the flexural strength shows an upward trend. At 3–12%, the flexural strength gradually decreases, but in the range of 3–6%. From time to time, although the flexural strength is decreasing, after the final decrease, the strength is still greater than that of the traditional cement-based composite mortar. This shows that carbon nanotubes modified cement-based phase change materials can play an important role in steel bridge engineering.



中文翻译:

碳纳米管改性水泥基相变材料在钢桥工程中的制备及性能

摘要

碳纳米管具有优异的机械、电学和化学稳定性,是开发高性能、多功能/智能水泥基复合材料的优良填料。为了解碳纳米管改性水泥基材料的制备及其性能,本文研究了碳纳米管的种类和含量对水泥基材料的机械、电学和电磁波屏蔽/吸收性能的影响。产品相(形貌、成分、结构和含量)、复合材料等效电路和电磁参数分析、纤维增强水泥基复合材料力学计算等,探索碳纳米管水泥基材料的改性机理。实验结果发现,当碳纳米管改性水泥用量为0~3%时,抗弯强度呈上升趋势。在 3-12% 时,抗弯强度逐渐降低,但在 3-6% 的范围内。抗弯强度时有下降,但最终下降后,强度仍大于传统水泥基复合砂浆。这说明碳纳米管改性水泥基相变材料在钢桥工程中可以发挥重要作用。强度仍大于传统的水泥基复合砂浆。这说明碳纳米管改性水泥基相变材料在钢桥工程中可以发挥重要作用。强度仍大于传统的水泥基复合砂浆。这说明碳纳米管改性水泥基相变材料在钢桥工程中可以发挥重要作用。

更新日期:2022-07-29
down
wechat
bug