Building block and system for manufacture

Abstract

A compressed building block formed of a pre-mix of fly ash, either of the Class C type, or provided from sugar beet waste lime, are combined with either ground or pulverized wood and/or chips, or with fine sand, having a small amount of Portland cement added thereto, moisturized, and then either extruded or compressed in a press into the configuration of a block. A fire retardant, and an insecticide, may be added to the composition, to provide the formed block with further beneficial attributes. The blocks may be formed by a system for extruding such blocks from the formulation, or they may be formed by means of a hydraulic or other press and pressed into the configuration of the desired block, needed for the construction.

1 - 2 . (canceled)  
   
   
       3 - 5 . (canceled)  
   
   
       6 - 7 . (canceled)  
   
   
       8 . Construction of a building block, said block being fabricated from molding or extruding into a high strength, light weight building block, said block fabricated into a multi-sided integrated block, and molded from a formulation of ingredients including: class C fly ash in the range of about fifty percent (50%) to sixty-five percent (65%) by weight of the mixed formulation; 
 ground cellulosic material mixed in the formulation between about thirty-five (35%) to fifty percent (50%) by weight of the mixed formulation;    Portland cement added in the range of about one half percent (½%) to three percent (3%) by weight of the mixed formulation to furnish adhesion to ingredients;    Water added in the range of about twenty percent (20%) to sixty-five percent (65%) by weight of the mixed formulation; and    whereby significant pressure in the range approximately 300 to 3,000 PSI is applied to said mixed ingredient formulation and forms it into the block form.    
   
   
       9 . The building block of  claim 8  wherein the pressure applied to mixed ingredient formulation is approximately 3,000 PSI.  
   
   
       10 . The building block of  claim 9  and including boron, added in the range of one half percent (½%) to five percent (5%) by weight of the mixed formulation to furnish fire retardancy and a preventer of insect infestation to the molded block.  
   
   
       11 . Construction of a building block, said block being fabricated from molding or extruding into a high strength, light weight building block, said block fabricated into a multi-sided integrated block, and molded from a formulation of ingredients including: 
 class C fly ash in the range of about fifty percent (50%) to sixty-five percent (65%) by weight of the mixed formulation,    ground cellulosic material selected from the group consisting of wood shavings, saw dust, and wood chips, mixed in the formulation between about thirty-five percent (35%) and to fifty percent (50%) by weight of the mixed formulation, and    Portland cement added in the range of about one half percent (½%) to three percent (3%) by weight of the mixed formulation, and including boron added in the range of one half percent (½%) to five percent (5%) by weight of the mixed formulation to furnish fire retardancy and a preventer of insect infestation to the molded block; and    whereby significant pressure of approximately 3,000 PSI is applied to said mixed ingredient formulation to form it into the block form.    
   
   
       12 . The building block of  claim 9  wherein said cellulosic material is selected from the group consisting of wood shavings, saw dust, wood chips, sugar beets, and pulverized cardboard.