纳米ZnCo2O4掺入多孔混凝土强度及开裂性能研究

K. Shanmugam, M. Arivanandhan, R. Jayavel
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引用次数: 1

摘要

在本研究中,研究了石灰水对掺入多孔混凝土的钴酸锌(ZnCo2O4)纳米颗粒强度评估和吸水率的影响。硅酸盐水泥部分被平均粒径为50 nm的纳米ZnCo2O4取代。结果表明,纳米颗粒的掺入可使混凝土在饱和水中固化时强度和透水性提高。未添加纳米粒子的混凝土试件强度较添加纳米粒子的混凝土试件低。结果表明,纳米颗粒掺入试样的强化是由于提高了透气性和强度。通过扫描电镜观察压缩后试样的显微组织和形貌。此外,ZnCo2O4纳米颗粒可以作为纳米填料,通过减少损伤孔来恢复试样的孔隙结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Strength and Cracking Behaviour of ZnCo2O4 Nanoparticles Incorporated Porous Concrete
In this study, the effect of limewater on strength assessments and percentage of water absorption of zinc cobaltate (ZnCo2O4) nanoparticles incorporated porous concrete has been investigated. Portland cement was partially replaced by ZnCo2O4 nanoparticles with the average particle size of 50 nm. The results indicated that the incorporation of nanoparticles could transform concrete with improved strength and water permeability when the specimens are cured in saturated water. The strength of concrete specimens without nanoparticles are relatively low compared to the specimen with ZnCo2O4 nanoparticles. The results show that the strengthening of nanoparticles incorporated specimens resulted from improved permeability together with high strength. Microstructure and morphology of the specimen after compressing test was observed by scanning electron microscopy (SEM). In addition, ZnCo2O4 nanoparticles are able to act as nanofillers and recovered the pore structure of the specimens by decreasing damaging pores.
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