Synthesis of calcium silicate-based nanofibers and its application in cement-based materials

被引：1
|
作者：
Chen, Lei [1 ,2 ,3 ]
Li, Changcheng [1 ,2 ,3 ]
Ran, Qianping [1 ,4 ]
Shu, Xin [1 ,2 ,3 ]
机构：
[1] State Key Lab High Performance Civil Engn Mat, Nanjing, Peoples R China
[2] Jiangsu Sobute New Mat Co Ltd, Nanjing, Jiangsu, Peoples R China
[3] Jiangsu Res Inst Bldg Sci, Nanjing, Peoples R China
[4] Southeast Univ, Nanjing, Peoples R China
来源：
MATERIALS LETTERS | 2023年 / 333卷
关键词：
Composite materials; Calcium silicates; Nanofiber; Cement; Flexural strength; Microstructure; TITANATE NANOFIBERS; PERFORMANCE; SLAG;
D O I：
10.1016/j.matlet.2022.133589
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Despite many studies of nanomaterials have been reported on the enhancement of cement-based materials, such as the pozzolanic effect of nano silica and flexural enhancement of fibers, there rarely are reports of the nano -materials with both pozzolanic effect and shape-based enhancement. In this paper, anisotropic nanofibers were synthesized based on calcium silicates through hydrothermal method. Seed-mediated growth was conducted while SiO2 nanoparticles served as the seeds and pseudo-wollastonite was used as the precursor. Importantly, the addition of the nanofibers can greatly improve the 28d flexural strength from 7.12 MPa to 8.99 MPa of the cement-based materials, which provides a new approach to realize the high performance of cement-based materials.
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页数：4
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