Experimental Investigation of Hybrid Carbon Nanotubes and Graphite Nanoplatelets on Rheology, Shrinkage, Mechanical, and Microstructure of SCCM

被引：65

作者：

Farooq, Furqan ^{[1
]}

Akbar, Arslan ^{[1
,2
]}

Khushnood, Rao Arsalan ^{[1
]}

Muhammad, Waqas Latif Baloch ^{[1
]}

Rehman, Sardar Kashif Ur ^{[1
]}

Javed, Muhammad Faisal ^{[1
]}

机构：

[1] Natl Univ Sci & Technol, Sch Civil & Environm Engn, Sect H-12, Islamabad 46000, Pakistan

[2] City Univ Hong Kong, Dept Architecture & Civil Engn, Kowloon, Hong Kong 999077, Peoples R China

来源：

MATERIALS | 2020年 / 13卷 / 01期

关键词：

dispersion; shrinkage; superplasticizer demand; rheological properties; microstructure; CEMENT PASTE; PERFORMANCE; CONCRETE; DISPERSION;

D O I：

10.3390/ma13010230

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon nanotubes (CNTs) and graphite nanoplatelets (GNPs) belong to the family of graphite nanomaterials (GNMs) and are promising candidates for enhancing properties of cementitious matrix. However, the problem lies with their improper dispersion. In this paper graphite nanoplatelets are used with carbon nanotubes for dispersion facilitation of CNTs in cement mortar. The intended role is to use the GNPs particles for dispersion of CNTs and to investigate the synergistic effect of resulting nano-intruded mortar. Mechanical properties such as flexure and compressive strength have been studied along with volumetric stability, rheology, and workability. Varying dosages of CNTs to GNPs have been formulated and were analyzed. The hybrid use of CNTs-GNPs shows promise. Scanning electron microscopy reveals that hybrid CNTs/GNPs are well-suited for use in cement mortar composite performing a dual function.

引用

页数：20

共 58 条

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