Advanced cement based nanocomposites reinforced with MWCNTs and CNFs

Emmanuel E. Gdoutos*, Maria S. Konsta-Gdoutos, Panagiotis A. Danoglidis, Surendra P Shah

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Cementitious materials reinforced with well dispersed multiwall carbon nanotubes (MWCNTs) and carbon nanofibers (CNFs) at the nanoscale were fabricated and tested. The MWCNTs and CNFs were dispersed by the application of ultrasonic energy and the use of a superplasticizer. Mechanical and fracture properties including flexural strength, Young’s modulus, flexural and fracture toughness were measured and compared with similarly processed reference cement based mixes without the nano-reinforcement. The MWCNTs and CNFs reinforced mortars exhibited superior properties demonstrated by a significant improvement in flexural strength (106%), Young’s modulus (95%), flexural toughness (105%), effective crack length (30%) and fracture toughness (120%).

Original languageEnglish (US)
Pages (from-to)142-149
Number of pages8
JournalFrontiers of Structural and Civil Engineering
Volume10
Issue number2
DOIs
StatePublished - Jun 1 2016

Keywords

  • carbon nanofibers
  • mortars
  • multi-walled carbon nanotubes
  • toughness
  • Young’s modulus

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering

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