Perlite aggregate consists of
expanded perlite, sized for use in lightweight fire retardant (resistant up to four hours) insulating concrete, replacing sand or gravel.
such inorganic aggregates as
expanded perlite (Sari, Karaipeikli 2008; Topcu, Isikdag 2008), vermiculite (Koksal et al.
Saudi Perlite lndustries, a pioneer in the field of thermal and cryogenic insulation, manufactures
expanded perlite at one of the biggest facilities of its kind in the region.
THE US IS ESTIMATED to be the largest consumer and producer of crude and
expanded perlite.
Beglaryan said that the packs of
expanded perlite belong to such technologies.
Some specific topics include modernization of the production of high-purity quartz groats from natural quartz, auto-ignition temperature data for selected ketones, and thermal treatment of new inorganic thermal insulation board based on
expanded perlite.
Expanded perlite is extensively used in construction and other industries due to its low apparent weight as well as low heat coefficient and high sound absorption.
The filler includes a mixture of unexpanded and expanded ash and
expanded perlite.
Air cells within the
expanded perlite provide its insulating efficiency.
Polyester plus
expanded perlite particles, and vitrified perlite particles, were used as support materials.
Several lightweight aggregates were tested, including ceramic spheres, lightweight sand, expanded shale, and
expanded perlite.
