A place for all mortars

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This masterclass aims to demonstrate that there is a place for all mortars by explaining more about the mortars we have available today. These range from hot mixed mortars, closely replicating historic mortars, to formulated ready mixed mortars.

9:30 a.m. - 4:30 p.m.
Various Speakers

Charlestown Workshops

£ + VAT

We have a huge variety of lime binders available to us today compared to the fairly limited range on offer when the lime enlightenment first began. Research and analysis has helped us understand why we should specify mortars to closely replicate those originally used, however, modern pressures force us to look at mortars more practically. This masterclass looks at all mortars and the advantages and disadvantages of various applications. 

Course suitability: 

This seminar is aimed at those specifying or working with mortars including building contractors, planners, architects, surveyors, engineers and other heritage professionals and students.

Course Programme:

09.30 – 10.00

Welcome and context for the day: history of lime production in Charlestown and use of lime

Roz Artis, Director, SLCT

10.00 – 11.00

NHL Binders: different manufacturers, effects of differences in raw ingredients production and more (HLs & FLs)

Bill Revie, Construction Materials Consultants Ltd, Stirling

11.00 – 11.15



11.15 – 11.35

Sands, aggregates, and proportioning mortars accurately

Roz Artis

11.35 – 11.45

Case Study: Glasgow School of Art unification coat

Roz Artis

11.45 – 12.30

Pre-mixed mortars, historic and modern additives

Edd Walker, Technical Manager, Cornish Lime

12.30 – 13.00

Historic Mortars Archive/Database

Anne Schmidt, HES

13.00 – 13.45



13.45 – 14.30

Hot-mixed mortars: Specifying in practice

Craig Frew, Frew Conservation

14.30 – 15.00

Specifying Traditional Plasterwork: Are we getting it right?

William Napier, Adams Napier Partnership

15.00 – 15.30

Case Study: Limerich

Richard Fraser, Director of Limerich

15.30 – 16.00

Practical Demonstrations:

Additives, hot-mixed mortar, St. One, pre-mixes

Jason Boag, Principal Trainer & Stonemason, SLCT


16.00 – 16.15

Q & A

All guest speakers.

16.15 – 16.30


Summary of the day’s topics and discussions and update on Historic Environment Scotland’s forthcoming technical research papers


Roger Curtis, HES

Please note: The Scottish Lime Centre Trust reserves the right to withdraw or modify any course being offered. In the event of a programme being withdrawn, we will try to find suitable alternatives.

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Scottish Lime Centre Trust is a charity registered in Scotland No: SCO22692

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