Suitability of excavated London clay as a supplementary cementitious material

Fragkoulis Kanavaris discusses the potential of producing supplementary cementitious materials (SCMs) using London Clay excavated from construction activities of the High Speed 2 rail project. A trade-off between enhancing reactivity versus decomposition of impurities (e.g., pyrite, carbonates) present in different London Clay samples was considered in selecting the calcination temperature.

Image courtesy of interviewee

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