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Economic and social commission for asia and the pacific regional mineral resources development centre

Perlite is a glassy yolcanic roc~which 'fill upon rapid and controlled heating, expand or l:lpop" into a frothy material of low bulk density -valued as a ,lightweight aggregate. Occurrences and commercial• deposits of perli te are known throughout the world as well~exposed flows and domes of Tertiary and Quatern~ry age like most of ~he volcanic rocks of Indonesia are. See map. Simple field and laboratory tests $Uffice to demonstrate if the product is of economic value. Perlite is mined by open pit methods; milling procedures are simple and perlite is processed or "popped" in furnaces. Transpo""ttation of une.xpanded perlite by rail OT truck is a significant economic factor. Because of its physical and chemical properties: low bulk density, low thermal conductivity, high resistance to fire and low sound transmission, uses of expanded perlite are many and varied: aggregate ~nd insulating material in the construction industry (_60 % of the production), loose fill insulation in cavity walls (_tankers, reservoirs), low temperature insulation (_cryogenics), fire proofing, horticul tur_al aggregate, excellent filter (_oil, water) , excellent filler, diluter and carrier of insecticides, herbicides, fertilizers, others uses as extenders in paints, enamels, glazes, plastics, resins rubber, abrasive, etc. Pumice, pumicite and volcanic cinders may be used a$ substitutes. In conclusion it is highly recommended that a preliminary survey should be carried out at the different perlite sites.

Ketersediaan
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Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat PMB LE1981-6
PMB NLLE00242
Tersedia
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Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat PMB LA 1976 -4
PMB LA 19764
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
PMB LE 1981-6
Penerbit
Bandung : Industrial Mineral Specialist.,
Deskripsi Fisik
24 p. ; 21 cm
Bahasa
Indonesia
ISBN/ISSN
-
Klasifikasi
553.076 UES e
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
Mineral
Perlite
Info Detail Spesifik
-
Pernyataan Tanggungjawab
Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas
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