高性能纤维增强混凝土中部分生物纳米二氧化硅包体的制备与表征

IF 2 4区工程技术 Q3 ENGINEERING, CHEMICAL

Advances in Polymer Technology Pub Date : 2023-08-10 DOI:10.1155/2023/4379941

D. Vivek, C. Aravind, S. Gokulkumar, M. Aravindh, Yalew Asres

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引用次数: 0

摘要

超高性能纤维混凝土（UHPFRC）是一种特殊类型的混凝土（以形成非常致密的基质），用于新建和翻新项目，以提高结构的使用寿命。研究人员仅分析和评估UHPFRC的微观结构、孔隙率以及新拌和硬化混凝土性能，但由于氢生成过程中存在金属颗粒和微裂纹，他们对降低UHPFRC力学性能的探索受到限制。因此，本研究旨在通过不同百分比的杂交方法（将生物纳米二氧化硅（nS）和聚丙烯混合）来消除现有问题，以进一步提高UHPFRC的强度性能。结果表明，由于nS在混凝土孔隙中的填充比例，混凝土的抗压强度比传统混凝土提高了15.5%；此外，纤维的表面和粗糙度也有助于强度的提高。

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Fabrication and Characterization of Partial Bio-nano-silica Inclusion in Fibre-Reinforced Concrete for High-performance Applications

Ultra-high-performance fibre-reinforced concrete (UHPFRC) is a specialized type of concrete (to create a very dense matrix) that is used for both new construction and renovation projects in order to improve the lifespan of structures. Researchers analyse and evaluate only the microstructure, porosity, and fresh and hardened concrete properties of UHPFRC but limited their exploration on the reduction of the mechanical properties of UHPFRC due to the presence of metallic particles and micro-fractures that occur during the generation of hydrogen. Hence, the present study aims to eliminate the existing problem by hybridization approach (mixing of bio-nano-silica (nS) and polypropylene) with different percentages to further improve the strength properties of UHPFRC. The result showed that the compressive strength is increased by 15.5% compared to traditional concrete due to the filling ratio of nS in the pores of the concrete; in addition, the fibre’s surface and roughness also contributed to the strength enhancement.

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来源期刊

Advances in Polymer Technology 工程技术-高分子科学

CiteScore

5.50

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Advances in Polymer Technology publishes articles reporting important developments in polymeric materials, their manufacture and processing, and polymer product design, as well as those considering the economic and environmental impacts of polymer technology. The journal primarily caters to researchers, technologists, engineers, consultants, and production personnel.