Patent ID: 6171655
Filing Date: 2001-01-09
Classification: C04B,E04C

Abstract:
A method of preparing a constructional finished wallboard, comprising:preparing a mixture including 50 to 65 wt. % of dried shirasu, 30 to 40 wt. % of a plaster component, 3 to 10 wt. % of a clay component, 5 to 10 wt. % of shirasu balloons, 0.8 to 2 wt. % of a bond reinforcing component, 0.01 to 3 wt. % of a color pigment, and 1 to 5 wt. % of fibers for plaster,adding an appropriate amount of water to the mixture and mixing together,applying the resulting mixture onto a substrate, andproviding surface-finishing processing onto a surface of the mixture on the substrate followed by drying to thereby form the constructional finished board.