Perlite for Use in Well Cements

As a well cementing material, perlite concrete is lightweight, insulating, and less costly. The physical character of expanded perlite lends itself to a variety of special purposes—including as aconstituent in well cement. For a detailed explanation of perlite expansion see PDF: Why Perlite Works. Well Cementing A lubricating mud consisting of water, clay, pozzolans and other materials is used to …

Perlite as a Sludge Absorbent

When perlite ore is expanded by exposure to controlled heating, it grows up to 20 times its original volume and takes on a foam-like cellular internal structure – essentially clusters of microscopic glass bubbles. Fine grades of perlite are mostly broken portions of these clusters, exhibiting a very large surface area, lending themselves to the efficient absorption of liquids. For a …

Perlite in Lightweight Formed Products

Ceiling tiles, pipe insulation, and fire-rated door cores are examples of products that attain lightweight bulk from expanded perlite. The physical character of expanded perlite lends itself to a variety of special purposes­ including the use in lightweight formed products. For a detailed explanation of perlite expansion, see information sheet: “Why Perlite Works” in the informa­tion library. Over half of …

Perlite as a Filler

The physical character of expanded perlite lends itself to a variety of special purposes—including use as a filler material in milled flake form, aggregate bubble form, and individual microspheres. For a detailed explanation of perlite expansion, see PDF information sheet: Why Perlite Works ADVANTAGES OF PERLITE AS A FILLER Weight reduction Shrink and/or crack resistance Low volume-based cost compared to binders and …