A DURABLE POROUS ARTICLE OF MANUFACTURE AND A PROCESS TO CREATE SAME

An acoustically absorbent porous panel formed from a cured aqueous foamed cementitious material comprising on a wet basis of about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fiber, and about 0.01 % to about 10% by weight surfactant. T...

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Bibliographische Detailangaben
Hauptverfasser:	PUTT, DEAN L, WIKER, ANTHONY L, BISCHEL, MARSHA STALKER, MOSER, ANDREA M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ARTIFICIAL STONE BUILDING BUILDING MATERIALS CEILINGS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIME, MAGNESIA METALLURGY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS PREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER REFRACTORIES ROOFS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG SOUND-PRODUCING DEVICES STRUCTURAL ELEMENTS TRANSPORTING TREATMENT OF NATURAL STONE WALLS, e.g. PARTITIONS WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	An acoustically absorbent porous panel formed from a cured aqueous foamed cementitious material comprising on a wet basis of about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fiber, and about 0.01 % to about 10% by weight surfactant. The panel also has pores distributed within the cured material comprising about 75% to about 95% by volume of the material. The cement-based, foamed panel provides good acoustical performance with enhanced durability and moisture resistance.