Forming Fibres from Basalt Rock

New application for a well-established process.

Necessary rock studies of the gabbro and andesite basalt groups for the suitability as the raw material base for the production of continuous basalt fiber (CBF). A unique technique including laboratory melting and pilot-industrial melting at the high-tech equipment.

Basalt, a rock which results when molten lava from deep in the earth’s crust rises up and cools sufficiently to solidify is found in many parts of the world. In some notable instances, it covers areas of many thousands of square miles. This paper describes work carried out to produce commercially useful fibre from the basalt which occurs as an enormous outcrop in Idaho, Oregon and Washington in the United States of America.

By Professor G. L. Sheldon Department of Mechanical Engineering, Washington State University, Pullman, Washington.


Terms: Basalt

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