CHARACTERIZATION OF ULTRA-HIGH-PERFORMANCE CEMENTITIOUS COMPOSITE INCORPORATING CARBON NANOTUBES

Authors

  • J. L. G. Lim Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
  • S. N. Raman Department of Architecture, Universiti Kebangsaan Malaysia 43600 UKM Bangi, Selangor, Malaysia http://orcid.org/0000-0003-4149-0141
  • R. Hamid Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
  • M. F. M. Zain Department of Architecture, Universiti Kebangsaan Malaysia 43600 UKM Bangi, Selangor, Malaysia
  • F. C. Lai Hume Concrete Products Research Centre, 46050 Petaling Jaya, Selangor, Malaysia

DOI:

https://doi.org/10.11113/jt.v80.11035

Keywords:

Carbon nanotubes (CNT), Ultra-High-Performance Cementitious Composites (UHPCC), Nano-engineered, Microstructure, Mechanical Properties

Abstract

Ultra-High-Performance Concrete (UHPC) is a type of concrete with unique mechanical and durability characteristics, developed to meet the global demand for extreme construction. Typically, UHPC is produced using customized mix design and subjected to special curing condition. Concrete is a brittle material in nature, where UHPC has its drawbacks in terms of lower tensile strength ratio and brittleness. Carbon nanotubes (CNT) is a potential candidate to act as nano-reinforcement in UHPC matrix, to create a denser and a more ductile Ultra-High-Performance Cementitious Composite (UHPCC) system. The consistent dispersion of CNT in the cementititious matrix is a challenge due to their high aspect ratio and its agglomerating behavior. This paper presents on the fundamental UHPCC mix design which optimizes on its packing density with fewer constituent materials. The mechanical strength and microstructure characteristics of three types of UHPCC developed with CNT, which were produced with different dispersion methods are reported. It was found that stable CNT dispersion enhanced the microstructure characteristics of the UHPCC matrix, and achieved higher compressive and flexural strengths compared to control specimens without CNT.

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Published

2018-01-09

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Section

Science and Engineering

How to Cite

CHARACTERIZATION OF ULTRA-HIGH-PERFORMANCE CEMENTITIOUS COMPOSITE INCORPORATING CARBON NANOTUBES. (2018). Jurnal Teknologi, 80(2). https://doi.org/10.11113/jt.v80.11035