The binder-aggregate interface in NHL mortar with non-calcitic aggregate: Physical properties

Alan Mark Forster, Lee Masson, Benny Suryanto, Phillip Frank Gower Banfill, Clare Torney, Jan Valek

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Abstract

In the absence of resources of calcitic aggregates this work aimed to confirm the suitability of Scottish aggregates in NHL mortar. Strength, sorptivity, porosity and carbonation of mortars made with one siliceous and one felsic (granitic) aggregate have been studied. The results suggest that there are no technical barriers to their use and that environmental and philosophical considerations reveal positive benefits. The measured properties all depend on the relative volume proportions of binder and aggregate, even at constant water/binder ratio and the trends can be explained by considering the behaviour at the binder-aggregate interface.
Original languageEnglish
Article number132349
JournalConstruction and Building Materials
Volume398
Early online date17 Jul 2023
DOIs
Publication statusPublished - 22 Sept 2023

Keywords

  • Binder-aggregate interface
  • Felsic aggregate
  • Mortar
  • Natural hydraulic lime
  • Siliceous aggregate

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science

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