Effect of microsilica and acrylic: Polymer treatment on the ageing of GRC

Wenzhong Zhu, Peter Bartos

Research output: Contribution to journalArticle

Abstract

Microsilica and acrylic polymer dispersions were used in different types of fibre treatments and matrix modifications. The effects of the various treatments/modifications on the flexural properties, the failure modes and the interfacial changes after different periods of ageing were investigated. The fibre treatment was found to be more effective in controlling the interfacial changes and properties of the aged composites, compared to the matrix modification. The relative effectiveness of the different fibre treatments, however; depended greatly on the bundle size of the fibre reinforcement used.

A new technique based on an unique microindentation apparatus was developed and used to carry out micro-strength testing in the fibre-matrix interfacial zone and particularly within the fibre bundle. Results suggested that a soft/flexible fibre bundle core combined with a strong bonding at the fibre-matrix interface was desirable for the optimal improvement of the long term performance of the composites.
Original languageEnglish
Pages (from-to)31-39
Number of pages9
JournalCement & Concrete Composites
Volume18
Issue number1
DOIs
Publication statusPublished - 1996

Keywords

  • glass fibres
  • fibre bundles
  • glass reinforced cement
  • acrylic polymer
  • microsilica
  • interfaces bond micro-fracture mechanics

Cite this

@article{cb8e2209601d4fdeafc35edb98223b50,
title = "Effect of microsilica and acrylic: Polymer treatment on the ageing of GRC",
abstract = "Microsilica and acrylic polymer dispersions were used in different types of fibre treatments and matrix modifications. The effects of the various treatments/modifications on the flexural properties, the failure modes and the interfacial changes after different periods of ageing were investigated. The fibre treatment was found to be more effective in controlling the interfacial changes and properties of the aged composites, compared to the matrix modification. The relative effectiveness of the different fibre treatments, however; depended greatly on the bundle size of the fibre reinforcement used.A new technique based on an unique microindentation apparatus was developed and used to carry out micro-strength testing in the fibre-matrix interfacial zone and particularly within the fibre bundle. Results suggested that a soft/flexible fibre bundle core combined with a strong bonding at the fibre-matrix interface was desirable for the optimal improvement of the long term performance of the composites.",
keywords = "glass fibres, fibre bundles, glass reinforced cement, acrylic polymer, microsilica, interfaces bond micro-fracture mechanics",
author = "Wenzhong Zhu and Peter Bartos",
year = "1996",
doi = "10.1016/0958-9465(95)00041-0",
language = "English",
volume = "18",
pages = "31--39",
journal = "Cement & Concrete Composites",
issn = "0958-9465",
publisher = "Elsevier B.V.",
number = "1",

}

Effect of microsilica and acrylic: Polymer treatment on the ageing of GRC. / Zhu, Wenzhong; Bartos, Peter.

In: Cement & Concrete Composites, Vol. 18, No. 1, 1996, p. 31-39.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of microsilica and acrylic: Polymer treatment on the ageing of GRC

AU - Zhu, Wenzhong

AU - Bartos, Peter

PY - 1996

Y1 - 1996

N2 - Microsilica and acrylic polymer dispersions were used in different types of fibre treatments and matrix modifications. The effects of the various treatments/modifications on the flexural properties, the failure modes and the interfacial changes after different periods of ageing were investigated. The fibre treatment was found to be more effective in controlling the interfacial changes and properties of the aged composites, compared to the matrix modification. The relative effectiveness of the different fibre treatments, however; depended greatly on the bundle size of the fibre reinforcement used.A new technique based on an unique microindentation apparatus was developed and used to carry out micro-strength testing in the fibre-matrix interfacial zone and particularly within the fibre bundle. Results suggested that a soft/flexible fibre bundle core combined with a strong bonding at the fibre-matrix interface was desirable for the optimal improvement of the long term performance of the composites.

AB - Microsilica and acrylic polymer dispersions were used in different types of fibre treatments and matrix modifications. The effects of the various treatments/modifications on the flexural properties, the failure modes and the interfacial changes after different periods of ageing were investigated. The fibre treatment was found to be more effective in controlling the interfacial changes and properties of the aged composites, compared to the matrix modification. The relative effectiveness of the different fibre treatments, however; depended greatly on the bundle size of the fibre reinforcement used.A new technique based on an unique microindentation apparatus was developed and used to carry out micro-strength testing in the fibre-matrix interfacial zone and particularly within the fibre bundle. Results suggested that a soft/flexible fibre bundle core combined with a strong bonding at the fibre-matrix interface was desirable for the optimal improvement of the long term performance of the composites.

KW - glass fibres

KW - fibre bundles

KW - glass reinforced cement

KW - acrylic polymer

KW - microsilica

KW - interfaces bond micro-fracture mechanics

U2 - 10.1016/0958-9465(95)00041-0

DO - 10.1016/0958-9465(95)00041-0

M3 - Article

VL - 18

SP - 31

EP - 39

JO - Cement & Concrete Composites

JF - Cement & Concrete Composites

SN - 0958-9465

IS - 1

ER -