Compressive strength sensitivity of cement mortar using rice husk-derived graphene with a high specific surface area

被引：61

作者：

Rhee, Inkyu ^{[1
]}

Kim, Yoong Ahm ^{[2
]}

Shin, Gun-Ok ^{[1
]}

Kim, Ji Hoon ^{[2
]}

Muramatsu, Hiroyuki ^{[3
]}

机构：

[1] Chonnam Natl Univ, Dept Civil Engn, Kwangju 500757, South Korea

[2] Chonnam Natl Univ, Sch Polymer Sci & Engn, Kwangju 500757, South Korea

[3] Shinshu Univ, Fac Engn, Nagano 3808553, Japan

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 96卷

关键词：

Rice husk-derived graphene; Specific surface area; Cement mortar; Silica fume; Compressive strength; MECHANICAL-PROPERTIES; CARBON NANOTUBES; HIGH-QUALITY; GRAPHITE; COMPOSITES;

D O I：

10.1016/j.conbuildmat.2015.08.016

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Herein, we demonstrate improvements to the compressive strength of cementitious mortar by incorporating rice husk-derived graphenes (GRHs). Several manufacturing trials were undertaken to synthesize optimized GRHs using different dosages of rice husk ash and potassium hydroxide as well as a range of activation temperatures. The incorporation of GRHs into mortar exhibits a generally enhanced reinforcing effect compared to graphene nanoplatelets (GNPs) and multi-walled carbon nanotubes (MWNTs) because of its high specific surface area. SEM/TEM image analyses confirm that GRH has a corrugated graphene structure and clean edges at the atomic scale. GRH showed extremely high BET surface area (2274 m(2)/g) compared to those of multi-walled carbon nanotubes and GNPs (50-200 m(2)/g). (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：189 / 197

页数：9

共 32 条

[1] Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites [J].