These occasional comments are mostly additions to the book Water Transport in Brick, Stone and Concrete (Third Edition published in 2021), written with W D Hoff. Some are afterthoughts and clarifications, others new unpublished results. There also some notes on other publications.
Please send any responses to Christopher.Hall@ed.ac.uk
NQ1 Water absorption into a short bar
NQ3 Water vapour permeability: Errors in BS EN ISO 12572:2016
NQ5 The volume of an out-of-true block
NQ6 Capillary imbibition, trapped air and barometric pressure
NQ7 Seven long years: Extended test of the Gummerson effect in Clipsham limestone
NQ8 Wetting and drying strain four English building stones