This article addresses the design of lightweight aggregates composites applying different materials (calcium sulphate hemihydrate and cement) as binder. A moderate strength and an excellent thermal conductivity of the lightweight composites are set as the design targets. The designed lightweight aggregates composites are targeted to be used in monolithic facade structure, performing as both load bearing element and thermal insulator. The mixtures are designed based on the insight that superior properties of a granular mix are achieved when a so-called geometric grading line is designed and obtained, applying a model known as the modified Andreasen and Andersen model. The properties of the obtained composites in both fresh and hardened states are investigated. Subsequently, a comparative study on calcium sulphate system and cement as binders is performed.
|Number of pages||13|
|Publication status||Published - 2014|