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High dosages of set accelerator in fibre reinforced shotcrete
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
2006 (English)In: Proceedings of the Tenth International Conference on Shotcrete for Underground Support, 2006, 120-137 p.Conference paper, Published paper (Refereed)
Abstract [en]

Aluminium sulphate-based shotcrete set accelerators (also called activators) are known to influence the rate of early-age hydration in shotcrete. This is the primary motivation for their widespread use throughout the mining and tunnelling industries. However, these admixtures are also known to change the degree of compaction that can be achieved with a given shotcrete mix and they can alter the age-dependent post-crack performance of Fibre Reinforced Shotcrete (FRS). The present investigation was undertaken to assess the magnitude and character of these changes in performance as the dosage rate of set accelerator is raised to higher than normal rates. Copyright ASCE 2006.

Place, publisher, year, edition, pages
2006. 120-137 p.
Series
Shotcrete for Underground Support X, 215
Keyword [en]
Compaction, Hydration, Shotcreting, Tunneling (excavation), Dosage rates, Fibre Reinforced Shotcrete (FRS), Set accelerators, Fiber reinforced materials
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-155847DOI: 10.1061/40885(215)11Scopus ID: 2-s2.0-33847723032ISBN: 0784408858 (print)ISBN: 9780784408858 (print)OAI: oai:DiVA.org:kth-155847DiVA: diva2:765515
Conference
10th International Conference on Shotcrete for Underground Support, 12 September 2006 through 16 September 2006, Whistler, BC
Note

QC 20141124

Available from: 2014-11-24 Created: 2014-11-13 Last updated: 2014-11-24Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • modern-language-association-8th-edition
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Language
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  • nn-NB
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  • Other locale
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Output format
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