Noise control device

Abstract

A noise control flooring system includes a resilient layer of extruded polymer monofilaments and a porous separation layer overlying at least a portion of the resilient layer. The porous separation layer carries a floating solid substrate layer thereupon and enhances the speed of drying of the floating solid substrate layer.

1 . A noise control flooring system that enhances the speed of drying of an overlying poured substrate, the noise control flooring system comprising:
 a void space creating layer comprising an entangled fiber mat; and   a porous separation layer that overlies at least a portion of the void space creating layer;   wherein water and vapor from a poured substrate layer overlying the porous separation layer is permitted to pass through the porous substrate layer and into the void space creating layer.   
     
     
         2 . The noise control flooring system according to  claim 1 , wherein the porous separation layer comprises natural fibers, synthetic fibers or a mixture thereof. 
     
     
         3 . The noise control flooring system according to  claim 2 , wherein the fibers of the porous separation layer comprise of PET spun laid nonwoven fibers. 
     
     
         4 . The noise control flooring system according to  claim 2 , wherein the fibers of the porous separation layer comprise spun bound nonwoven polypropylene. 
     
     
         5 . The noise control flooring system according to  claim 2 , wherein the porous separation layer has openings that are in the range of about 0.037 mm to about 0.074 mm. 
     
     
         6 . The noise control flooring system according to  claim 2 , wherein the fibers of the porous separation layer comprise chopped fibers. 
     
     
         7 . The noise control flooring system according to  claim 2 , wherein the fibers of the porous separation layer comprise continuous fibers. 
     
     
         8 . The noise control flooring system according to  claim 1 , where in the porous separation layer further comprises one or more compounds that absorb moisture. 
     
     
         9 . The noise control flooring system according to  claim 1 , wherein the porous separation layer has applied thereto a nano-technology solution that enhances drying by bonding to the water molecules in the substrate layer. 
     
     
         10 . The noise control flooring system according to  claim 1 , wherein the entangled fiber mat comprises a resilient three-dimensional web of extruded polymer monofilaments, the polymer monofilaments being heat welded at junctions to form an open network of tangled monofilament. 
     
     
         11 . The noise control flooring system according to  claim 1 , wherein the substrate layer comprises Portland cement or gypsum cement mixed with other materials selected from fly ash, retarding agents, plasticizers and a combination thereof. 
     
     
         12 . A noise control device comprising:
 a void space creating layer comprising an entangled fiber mat comprising a resilient three-dimensional web of extruded polymer monofilaments, the polymer monofilaments being heat welded at junctions to form an open network of tangled monofilament; and   a porous separation layer that overlies at least a portion of the void space creating layer, the porous separation layer having openings that are in the range of about 0.037 mm to about 0.074 mm.