Moriya Suzuki* and Hiroshi Ryono**

* Osaka National Research Insititute, AIST
** HEC Co., Ltd

+ Correspondence should be addressed to Moriya Suzuki:
(1-8-31 Midorigaoka, Ikeda-shi, Osaka 563 Japan)

Abstract

Viscosity and glass forming tendency have been studied in the glass and melt prepared from chrysotile, portland cement and waste glass, in order to use waste asbestos as a raw material of glass wool. The addition of the waste glass to the chrysotile and portland cement decreased liquidus temperature, crystallization temperature and degree of supercooling. Viscosity at the liquidus temperature and the forming temperature increased with increasing proportion of the waste glass. From these effects, the addition of the waste glass to the chrysotile and portland cement suppresses the crystallization from the melt and reaches the value suitable for drawing glass wool.

Key words: sprayed asbestos, chrysotile, portland cement, waste glass, glass wool, viscosity