Lecture

Adjusting LC³ Cement Composition: Alumina, Sulphates, and Alkalis

Description

This lecture explores the adjustments needed in LC³ cement composition, focusing on the role of alumina, sulphates, and alkalis. It discusses the impact of sulphates on Portland cement, the importance of sulphation in cements with calcined clays, and the influence of alumina content on early strength. The lecture also covers the effects of alkalis on compressive strength, the concern of alkali silica reaction, and the effectiveness of alumina silicate supplementary cementitious materials in preventing ASR. Additionally, it delves into the reserve of alumina in C-S-H and presents test results in simulated pore solutions, highlighting the benefits of LC³ systems in controlling ASR.

In MOOC

Instructor

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Official source

https://mediaspace.epfl.ch/media/0_l3fyyfw4

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