Effects of curing temperature on the hydration of GGBS concrete and the use of electron microscope particle analysis

5.00
Hdl Handle:
http://hdl.handle.net/2436/620484
Title:
Effects of curing temperature on the hydration of GGBS concrete and the use of electron microscope particle analysis
Authors:
Tang, Kangkang ( 0000-0002-9289-937X ) ; Wilkinson, Stephen; Beattie, Greg
Abstract:
It is a common concern that ground granulated blast-furnace slag (GGBS) blended CEM I concrete lacks sufficient early-age strength, which may prevent its application in cast-in-place structural concrete. This has been identified in the present study through GGBS activity index tests and compressive strength tests of GGBS blended concrete specimens. Current codes for GGBS used in concrete require a minimum early-age hydraulic activity and a specific surface area. The particle size distribution (PSD) of GGBS can also affect the physical and mechanical properties of concrete, but this cannot be sufficiently addressed by the standard testing methods. This paper proposes a quantitative assessment method which can quickly determine the particle shape and PSD of CEM I cement and GGBS samples based on electron microscope image analysis. This method of assessment offers the potential to work as an important supplementary method to the existing testing methods adopted by the cement industry. In addition to the particle shape analysis, CEM I and GGBS samples were also characterised based on isothermal calorimetry, scanning electron microscopy (SEM) and X-ray diffraction (XRD) tests. These tests were conducted at 20°C and 38°C curing to investigate the effect of curing temperatures.
Citation:
Effects of curing temperature on the hydration of GGBS concrete and the use of electron microscope particle analysis 2017:1 Advances in Cement Research
Publisher:
ICE Publishing
Journal:
Advances in Cement Research 29(8)
Issue Date:
8-May-2017
URI:
http://hdl.handle.net/2436/620484
DOI:
10.1680/jadcr.16.00175
Additional Links:
http://www.icevirtuallibrary.com/doi/10.1680/jadcr.16.00175
Type:
Article
Language:
en
ISSN:
0951-7197
Appears in Collections:
FSE

Full metadata record

DC FieldValue Language
dc.contributor.authorTang, Kangkangen
dc.contributor.authorWilkinson, Stephenen
dc.contributor.authorBeattie, Gregen
dc.date.accessioned2017-05-25T13:51:10Z-
dc.date.available2017-05-25T13:51:10Z-
dc.date.issued2017-05-08-
dc.identifier.citationEffects of curing temperature on the hydration of GGBS concrete and the use of electron microscope particle analysis 2017:1 Advances in Cement Researchen
dc.identifier.issn0951-7197en
dc.identifier.doi10.1680/jadcr.16.00175-
dc.identifier.urihttp://hdl.handle.net/2436/620484-
dc.description.abstractIt is a common concern that ground granulated blast-furnace slag (GGBS) blended CEM I concrete lacks sufficient early-age strength, which may prevent its application in cast-in-place structural concrete. This has been identified in the present study through GGBS activity index tests and compressive strength tests of GGBS blended concrete specimens. Current codes for GGBS used in concrete require a minimum early-age hydraulic activity and a specific surface area. The particle size distribution (PSD) of GGBS can also affect the physical and mechanical properties of concrete, but this cannot be sufficiently addressed by the standard testing methods. This paper proposes a quantitative assessment method which can quickly determine the particle shape and PSD of CEM I cement and GGBS samples based on electron microscope image analysis. This method of assessment offers the potential to work as an important supplementary method to the existing testing methods adopted by the cement industry. In addition to the particle shape analysis, CEM I and GGBS samples were also characterised based on isothermal calorimetry, scanning electron microscopy (SEM) and X-ray diffraction (XRD) tests. These tests were conducted at 20°C and 38°C curing to investigate the effect of curing temperatures.en
dc.language.isoenen
dc.publisherICE Publishingen
dc.relation.urlhttp://www.icevirtuallibrary.com/doi/10.1680/jadcr.16.00175en
dc.rightsArchived with thanks to Advances in Cement Researchen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectblast furnace slagen
dc.subjectthermal methodsen
dc.subjectanalysisen
dc.titleEffects of curing temperature on the hydration of GGBS concrete and the use of electron microscope particle analysisen
dc.typeArticleen
dc.identifier.journalAdvances in Cement Research 29(8)en
dc.contributor.institutionFaculty of Science and Engineering, University of Wolverhampton, Wolverhampton, UK (corresponding author: )-
dc.contributor.institutionFaculty of Science and Engineering, University of Wolverhampton, Wolverhampton, UK-
dc.contributor.institutionArup, Liverpool, UK-
dc.date.accepted2017-04-
rioxxterms.funderInternalen
rioxxterms.identifier.projectUoW250517KTen
rioxxterms.versionAMen
rioxxterms.licenseref.urihttps://creativecommons.org/CC BY-NC-ND 4.0en
rioxxterms.licenseref.startdate2017-05-25en
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