Specifying hot-mixed lime mortars

Introduction

Hot-mixed lime mortars are crucial in the preservation of historic masonry, offering benefits in authenticity, performance, and workability. This technical paper by Roz Artis, published by Historic Environment Scotland, explores the intricacies of specifying hot-mixed lime mortars, discussing their preparation, historical context, and the reasons for their specification. Additionally, it addresses common causes of failure and provides a framework for developing effective specifications for lime mortar repairs in historic buildings.

Making a Hot-Mix

Understanding what constitutes a hot-mixed mortar and its preparation is essential for ensuring the success of conservation projects involving historic masonry.

• What is a Hot-Mixed Mortar?: This section defines hot-mixed mortars, explaining the chemical and physical processes involved in their creation.
• Preparation