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作者:

Fan, Yufeng (Fan, Yufeng.) | Zhang, Guosheng (Zhang, Guosheng.) | Li, Yue (Li, Yue.) (学者:李悦)

收录:

EI Scopus SCIE

摘要:

Graphene oxide (GO) is an excellent nano reinforcing material. This paper presents the effect of GO addition on the hydration, microstructure and mechanical properties of magnesium phosphate cement (MPC). MPC with GO contents of 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10 % was prepared. The functional groups, mechanical properties, phase composition and reinforcement mechanism of the GO-MPC composites were tested and analysed. The results showed that water adhered to the GO, which led to a decrease in the fluidity of the MPC paste. With increasing GO content, the most probable pore size of MPC first decreased and then increased. By adding 0.04 % GO, the most probable aperture of MPC was reduced from 11.3 mu m to 0.9 mu m. The proper addition of GO could refine the pore size, densify the microstructure and improve the mechanical properties of MPC. An appropriate dosage of GO promoted the hydration of MPC, resulting in more hydration products, including potassium magnesium phosphate hexahydrate (MKP), better growth of MKP with higher crystallinity.

关键词:

Mechanical properties Graphene oxide Microstructure Reinforcement Magnesium phosphate cement

作者机构:

  • [ 1 ] [Fan, Yufeng]China Construct Second Bur Installat Engn Co Ltd, Beijing 100160, Peoples R China
  • [ 2 ] [Zhang, Guosheng]Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China
  • [ 3 ] [Zhang, Guosheng]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Beijing Key Lab Earthquake Engn & Struct Retrofit, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Yue]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Beijing Key Lab Earthquake Engn & Struct Retrofit, Minist Educ, Beijing 100124, Peoples R China

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来源 :

CONSTRUCTION AND BUILDING MATERIALS

ISSN: 0950-0618

年份: 2022

卷: 359

7 . 4

JCR@2022

7 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:66

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 11

SCOPUS被引频次: 14

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

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