High dosages of set accelerator in fibre reinforced shotcrete
2006 (English)In: Proceedings of the Tenth International Conference on Shotcrete for Underground Support, 2006, 120-137 p.Conference paper (Refereed)
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.
, Shotcrete for Underground Support X, 215
Compaction, Hydration, Shotcreting, Tunneling (excavation), Dosage rates, Fibre Reinforced Shotcrete (FRS), Set accelerators, Fiber reinforced materials
IdentifiersURN: urn:nbn:se:kth:diva-155847DOI: 10.1061/40885(215)11ScopusID: 2-s2.0-33847723032ISBN: 0784408858ISBN: 9780784408858OAI: oai:DiVA.org:kth-155847DiVA: diva2:765515
10th International Conference on Shotcrete for Underground Support, 12 September 2006 through 16 September 2006, Whistler, BC
QC 201411242014-11-242014-11-132014-11-24Bibliographically approved