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Main Index > Markets > Construction Applications >
Overview
Expanded Perlite Use in Construction Applications
Because of perlite's outstanding insulating character-
istics and light weight, it is widely used as a loose-fill insulation in masonry
construction. In this application, free-flowing perlite loose-fill masonry insulation is
poured into the cavities of concrete block
where it completely fills all cores, crevices, mortar
areas and ear holes. In addition to providing thermal
insulation, perlite enhances fire ratings, reduces
noise transmission and it is rot, vermin and termite
resistant perlite is also ideal for insulating low temperature and cryogenic vessels.
When perlite is used as an aggregate in concrete, a
lightweight, fire resistant, insulating concrete is
produced that is ideal for roof decks and other
applications. Perlite can also be used as an aggregate in Portland cement and gypsum
plasters for exterior applications and for the fire protection of beams and columns.
Other construction applications include under-floor
insulation, chimney linings, paint texturing, gypsum
boards, ceiling tiles and roof insulation boards.
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