Thank you for visiting SNEWPapers!
Sign up free
Story
November 24, 1949
Smyrna Times
Smyrna, Kent County, Delaware
What is this article about?
Perlite, a volcanic ore that expands like popcorn when heated, is being used in the building industry as a lightweight, insulating, and moisture-proof material for plastering and concrete aggregates.
Clipping
OCR Quality
98%
Excellent
Full Text
Volcanic Popcorn Used in Building
Perlite, a volcanic ore which explodes like popcorn when it is properly heated, is coming into use in the building industry as a plastering material and concrete aggregate, says American Builder, authoritative building magazine.
Perlite is prepared by heating it in special furnaces. It explodes into a mass of tiny bubbles. Each bubble consists of an air cell surrounded by a tough, glassy shell.
The lightweight material has insulating properties, high compressive strength and is moisture-proof.
Perlite-gypsum mixes for plastering are already on the market. The material is highly resistant to cracking.
Perlite, a volcanic ore which explodes like popcorn when it is properly heated, is coming into use in the building industry as a plastering material and concrete aggregate, says American Builder, authoritative building magazine.
Perlite is prepared by heating it in special furnaces. It explodes into a mass of tiny bubbles. Each bubble consists of an air cell surrounded by a tough, glassy shell.
The lightweight material has insulating properties, high compressive strength and is moisture-proof.
Perlite-gypsum mixes for plastering are already on the market. The material is highly resistant to cracking.
What sub-type of article is it?
Curiosity
What themes does it cover?
Nature
What keywords are associated?
Perlite
Volcanic Ore
Building Material
Plastering
Concrete Aggregate
Insulating Properties
Story Details
Story Details
Perlite, a volcanic ore, expands like popcorn when heated and is used in building as a plastering material and concrete aggregate due to its lightweight, insulating, moisture-proof, and crack-resistant properties.