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 . Construction of a building block, one fabricated essentially from waste materials, that 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 a range of about fifty percent (50%) to sixty five percent (65%) by weight of the molded block, ground celuostic material such a wood shavings, saw dust, and wood chips, mixed in the formulation between about thirty five percent (35%) to fifty percent (50%) by weight of the mixed formulation, and a Portland cement added in the range of one half percent (½%) to three percent (3%) to furnish adhesion to the ingredients when molded into block form.  
     
     
         2 . Molded building block of  claim 1  and including boron, added in the range of one half percent (½%) to five percent (5%) to furnish fire retardancy and a preventer of insect infestation to the molded block.  
     
     
         3 . The building block of  claim 1  and including water added as an ingredient to the formulation between about thirty five percent (35%) to sixty five percent (65%) by weight of the formulation.  
     
     
         4 . The building block of  claim 1  wherein said block has dimensions of approximately four inches by eight inches by 12 inches (4″×8″×12″) in configuration.  
     
     
         5 . The building block of  claim 3  wherein water is sprayed onto the molded block in an amount of approximately twenty percent (20%) to thirty percent (30%) by weight of the block formulation.