Historical defects in buildings – No. 2: High-alumina cement

Hugh Docherty looks at the topical subject of reinforced autoclaved aerated concrete (RAAC), offering brief guidance on identification and mitigation/remedial options.

Hugh Docherty introduces a new series of short advice notes that aims to educate structural engineers on historical defects commonly encountered when working on existing buildings.

Hugh Docherty continues this series by examining the potential damage caused by alkalis and silica reacting in concrete, and offering brief advice on identification and remediation.