A new approach to improve mechanical properties and durability of low-density oil well cement composite reinforced by cellulose fibres in microstructural scale

X. W. Cheng, Morteza Khorami, Y. Shi, K. Q. Liu, X. Y. Guo, Stephen Austin, Messaoud Saidani

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Abstract

In this research, a new approach was carried out to investigate the effect of incorporating cellulose fibres and silica fume into low-density oil well cement. Mechanical properties, durability and microstructure of the specimens were studied through various tests including; triaxial, flexural, tensile and compressive strength, cement sheath equivalent, permeability, mercury intrusion Porosimetry, ATR-FTIR analysis, degree of hydration and scanning electron microscopy. Twelve groups of the fibre-cement composite, with different amounts of silica fume and fibre content, were made and tested. The results show that the best performance belongs to the specimen reinforced by 8% fibre content and 15% silica fume in terms of mechanical properties and durability.
Original languageEnglish
Pages (from-to)499–510
Number of pages12
JournalConstruction and Building Materials
Volume177
Early online date4 Jun 2018
DOIs
Publication statusPublished - 20 Jul 2018

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Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, [177], (2018) DOI: 10.1016/j.conbuildmat.2018.05.134

© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

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Keywords

  • Low density
  • Durability
  • Cement Composite Microstructure
  • Mechanical properties
  • Silica fume
  • Cellulose fibre
  • Oil well cement composite

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