Design, mechanism, and performance of cement-based materials with 1D nanomaterials

Weina Meng, Kamal H. Khayat

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations

Abstract

The major disadvantage of cement-based materials is their brittle nature which is attributed to their poor resistance to crack formation, the low tensile strength, and low tensile strain capacities. Efforts have been conducted to enhance the tensile properties of cement-based materials by adding micro or/and macro fibers. Fibers change large wide cracks to dense microcracks. However, the fibers fail to stop cracking initiation at nanoscale and propagation at microscale. Extensive research endeavors over the last few years demonstrated the application potential of various 1D nanomaterials, mainly carbon nanofiber and carbon nanotube (CNT), in cementitious composites. Compared with 0D nanomaterials, 1D nanomaterials can effectively restrict the formation and growth of nanocracks in cementitious composites, which benefits the development of high crack-resistant cement-based materials with superior mechanical properties and durability. This chapter reviews recent research on design, performance, and mechanism of cement-based materials with 1D nanomaterials.

Original languageEnglish
Title of host publicationNanotechnology for Civil Infrastructure
Subtitle of host publicationInnovation and Eco-efficiency of Nanostructured Cement-Based Materials
Pages93-126
Number of pages34
ISBN (Electronic)9780128178324
DOIs
StatePublished - 1 Jan 2023

Keywords

  • 1D nanomaterials
  • Carbon nanofibers
  • Carbon nanotubes
  • Fresh properties
  • Mechanical properties

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