Welcome to the HotMixedMortars.com website.

Please view the contents of this website to gain an insight into hot mixed mortars and related work.

"The technical evidence does not point to short cuts in the achievement of good building; it points consistently to the discovery by scientific means of the rationale of established building traditions, which should be altered only with the full knowledge of the consequences…" (RIBA Committee: The Architectural Use of Building Materials – Post-War Building Studies Number 18, 1946, London HMSO for the Ministry of Works.)

Hot Limewashes Research

Hot Lime Mortars Research

Lime Revival Research


Hot Mixed Mortars and "The Lime Revival"

Traditional mortars are eminently workable, effectively porous, economic in use and appropriately durable. Used in buildings for thousands of years, these materials are ideal for repair and conservation work. Unlike cement or modern hydraulic lime, their routine use would make a significant contribution in the struggle against climate change. However, despite the 1975 "lime revival" there remains a deficit in research into the most-used traditional mortars. Drawing upon historic literature, material science and industry case studies, topics covered on this website include: a historical overview of traditional mortars; slaking and mixing hot mixed lime mortars; the essentials of pozzolans, aggregates and lime tempering; plasters, lime washes and sheltercoats, and finally, the revival of interest in the use of like-for-like and compatible mortars.


Gallery Highlights

Contact Details

Hot Mixed Mortars
Hall Farmhouse
North Yorkshire
England, UK
YO18 7SA


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