Lightweight aggregates used in mortars and concretes
Use of recycled polymers in mortars and concretes
Quizzed article REF: AM3600 V1
Lightweight aggregates used in mortars and concretes
Use of recycled polymers in mortars and concretes

Authors : Veronica CALDERON, Matthieu HORGNIES

Publication date: July 10, 2013, Review date: July 21, 2021 | Lire en français

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2. Lightweight aggregates used in mortars and concretes

2.1 Traditional lightweight aggregates

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2.1.1 Expanded clay

This lightweight aggregate is obtained by subjecting clays to a high-temperature firing process (1,200°C), transforming them into spherical, porous, low-density aggregates. The interior of this expanded clay is made up of cells, created by the formation of air microbubbles. This microstructure confers high insulating power, making it ideal for use in insulation elements, lightweight blocks and prefabricated buildings

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