eprintid: 3769
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/37/69
datestamp: 2023-11-09 15:52:02
lastmod: 2023-11-09 15:52:02
status_changed: 2023-11-09 15:47:35
type: article
metadata_visibility: show
creators_name: Demie, S.
creators_name: Nuruddin, M.F.
creators_name: Shafiq, N.
title: Effects of micro-structure characteristics of interfacial transition zone on the compressive strength of self-compacting geopolymer concrete
ispublished: pub
keywords: Binder matrix; Concrete performance; Concrete specimens; Experimental studies; Field emission scanning electron microscopes; Geopolymer; Geopolymer concrete; Good correlations; Interfacial transition zone; Interfacial zones; Self-compacting; Superplasticizers, Aggregates; Binders; Fly ash; Inorganic polymers, Compressive strength
note: cited By 108
abstract: This paper presents an experimental study of the influence of different superplasticizer dosage on compressive strength and micro-structure characteristics of interfacial transition zone (ITZ) prepared with fly ash based self-compacting geopolymer concrete (SCGC). The correlations between compressive strength development and microstructure of interfacial transition zone were also investigated. Concrete specimens were prepared with different superplasticizer (SP) dosage namely 3, 4, 5, 6 and, 7 and cured at 70 °C for duration of 48 h. Field emission scanning electron microscope (FESEM) observations revealed that improved performance of concrete was found when the compressive strength increased through formation of dense ITZ between the aggregate and binder matrix at higher SP dosage. There are good correlations between compressive strength and micro-structure characteristics of interfacial transition zone. The FESEM analysis revealed that relatively a loose and porous interfacial zone was found between the binder and aggregate for low SP dosage and theses loose and porous ITZ decreased the performance of concrete by lowering the compressive strength; however, a dense ITZ was found between the aggregate and binder matrix for higher SP dosage that enhanced the concrete performance by increasing the compressive strength. © 2012 Elsevier Ltd. All rights reserved.
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872140098&doi=10.1016%2fj.conbuildmat.2012.11.067&partnerID=40&md5=1a7aa4e5e2f416376d1a732f5d75b64e
id_number: 10.1016/j.conbuildmat.2012.11.067
full_text_status: none
publication: Construction and Building Materials
volume: 41
pagerange: 91-98
refereed: TRUE
issn: 09500618
citation:   Demie, S. and Nuruddin, M.F. and Shafiq, N.  (2013) Effects of micro-structure characteristics of interfacial transition zone on the compressive strength of self-compacting geopolymer concrete.  Construction and Building Materials, 41.  pp. 91-98.  ISSN 09500618