Hawthorne, J, Whittaker, M, Herterich, J et al. (1 more author) (2012) Effect of curing conditions, slag type and replacement level on the transport properties of composite cements. In: Russell, MI and Basheer, MPA, (eds.) Proceedings of the 32nd Annual Cement and Concrete Science Conference. 32nd Cement and Concrete Science Conference, 17-19 Sep 2012, Belfast. Queen's University Belfast ISBN 9781909131033
Abstract
The partial replacement of Portland cement (OPC) with ground granulated blast furnace slag (GGBS) is a common practice both here in the UK and on an international level. It serves to reduce both embodied energy and embodied carbon whilst making use of an industrial by-product, creating a double saving through negating the need for landfilling. It has been found that such composite cements have the ability to improve physical and chemical performance through their hydration within a cementitious matrix; however their reduced rate of hydration compared to pure OPC means that they are more susceptible to changes in curing conditions. This study has been performed in order to assess and compare the effects of variations in curing conditions on the performance of these composite cements. Samples were prepared from CEM I with 0, 40 or 70% replacement by GGBS and cured either in ‘field’ conditions (externally, within a sheltered area) or in ‘ideal’ conditions (in a curing room at 20°C ±1°C and 98% RH) for 28 and 56 days. UCS, permeability and sorptivity were measured with additional characterisation via SEM-BSE.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Keywords: | cement; GGBS; BFS; OPC; SCM; curing conditions; Hydration; Strength development; Engineering performance |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Sep 2017 14:04 |
Last Modified: | 08 Sep 2017 14:04 |
Status: | Published |
Publisher: | Queen's University Belfast |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96952 |