Polymer and cement-based fiber-reinforced composite materials for sandwich slabs

The external concrete layers of sandwich panels are often connected through metallic elements. These connectors tend to cause thermal bridging effects. This article introduces an innovative solution for precast sandwich slabs as part of a modular housing system.

The main reason for using sandwich panels in building construction is the structural and thermal efficiency that can be achieved with this technology. This type of system is known to provide adequate weather sheltering, efficient acoustic performance and thermal insulation; it has been widely applied in precast structural panels [1]. However, concrete sandwich panels used for slabs or walls usually consist of two external conventionally reinforced concrete layers separated by an insulation layer and mechanically connected through steel trusses that penetrate the insulation layer, which cause...

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