Vermiculite Concrete

The components of vermiculite concrete are expanded vermiculite aggregate, air-entraining admixture, Portland cement, and water, all mixed and applied according to precise procedures. Vermiculite is a soft, laminated, mica-like mineral that when heated and exfoliated becomes a lightweight aggregate of great value for fill and insulating concrete.

Vermiculite concrete is used in manufacturing wall panels, roofing slabs, and other components; it has a density of 600-900 kg/m3, a coefficient of thermal conductivity of up to 0.19 W/(m. °K), and a compressive strength of up to 3.5 mega newtons per sq m (35 kilograms-force per sq cm).

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