Exfoliated vermiculite can be used as a replacement for dense aggregates to produce a lightweight insulating concrete. This finds use as in-situ roof and floor screeds and in the fabrication of precast products. It is also used as a back fill where improved insulation is required.
Lightweight roof screeds, as a slope to drain, not only shed water but can reduce the steel structure design while providing a smooth insulating roof substrate for the roof membrane.
Pictures supplied by: The Strong Company, Inc., USA.
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