发明名称 |
METHOD AND APPARATUS FOR PRODUCING AN INORGANIC FOAM STRUCTURE FOR USE AS A DURABLE ACOUSTICAL PANEL |
摘要 |
A process and apparatus for creating an acoustically absorbent porous panel comprises the steps of dispensing cement and fibers with a dry mixer to create a dry mix and aqueous mixing water, surfactant and air with an aqueous mixer to create a foam. The process and apparatus provides for combining and mixing the foam and dry mix in a combining mixer to form a foamed cementitious material comprising on a wet basis about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fibers, and about 0.01% to about 10% by weight surfactant. The foamed cementitious material is then dried or cured in a drying chamber. The dried foamed cementitious material may then textured with an embossing roller. The cementitious material provides good acoustical performance with enhanced durability and moisture resistance.
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申请公布号 |
CA2320593(C) |
申请公布日期 |
2010.08.10 |
申请号 |
CA20002320593 |
申请日期 |
2000.09.26 |
申请人 |
ARMSTRONG WORLD INDUSTRIES, INC. |
发明人 |
PUTT, DEAN L.;HARTMAN, JOHN J., JR.;HALLETT, CHESTER W.;MOSER, ANDREA M. |
分类号 |
C04B38/10;B28B1/52;B28B5/02;B28C5/38;B32B13/04;C04B28/00;C04B28/02;C04B28/14;E04B1/84;E04B1/86;E04B9/00;E04B9/04;E04C5/07;G10K11/162 |
主分类号 |
C04B38/10 |
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