Lightweight drainable cellular concrete

Abstract

A lightweight previous cellular concrete is provided. The concrete has an internal structure comprising interconnected channels, resulting in a permeability K value of less than about 1×10 −5 , and as low as about 1. The cellular concrete has a density range of between 10 to about 100 pounds per cubic foot, with a compressive strength of between about 10 to about 1000 psi.

1 . A previous concrete having interconnected capillaries formed from bubbles of a foaming agent coalesced within a base mix of the previous concrete. 
     
     
         2 . The previous concrete of  claim 1 , wherein the interconnected capillaries are configured to allow a fluid to pass through the previous concrete. 
     
     
         3 . The previous concrete of  claim 1 , wherein the interconnected capillaries are configured to allow solids suspended within the fluid to pass through the previous concrete. 
     
     
         4 . The previous concrete of  claim 1 , wherein the interconnected capillaries are configured to filter contaminants from the fluid as it passes through the previous concrete. 
     
     
         5 . The previous concrete of  claim 4 , wherein the contaminants include one or more of aluminum, chromium, iron, lead, and oil. 
     
     
         6 . The previous concrete of  claim 1 , wherein the base mix further includes zeolite. 
     
     
         7 . The previous concrete of  claim 1 , wherein the foaming agent is used to create foam prior to being combined with the base mix. 
     
     
         8 . The previous concrete of  claim 1 , wherein the foaming agent is mixed with the base mix to create the bubbles. 
     
     
         9 . The previous concrete of  claim 1 , which is pumpable when wet. 
     
     
         10 . A method of forming a previous concrete comprising:
 combining a base mix and a foaming agent together to form a previous concrete having interconnected capillaries formed from bubbles of the foaming agent coalesced within the base mix.   
     
     
         11 . The method of  claim 10 , wherein the interconnected capillaries are configured to allow a fluid to pass through the previous concrete. 
     
     
         12 . The method of  claim 10 , wherein the interconnected capillaries are configured to allow solids suspended within the fluid to pass through the previous concrete. 
     
     
         13 . The method of  claim 10 , wherein the interconnected capillaries are configured to filter contaminants from the fluid as it passes through the previous concrete. 
     
     
         14 . The method of  claim 10 , wherein the base mix further includes zeolite. 
     
     
         15 . The method of  claim 10 , further comprising:
 pumping the previous concrete in a wet state.   
     
     
         16 . A method of forming a previous concrete comprising:
 combining a base mix and a foam to form a previous concrete having interconnected capillaries formed from bubbles of the foam coalesced within the base mix.   
     
     
         17 . The method of  claim 16 , wherein the interconnected capillaries are configured to allow a fluid to pass through the previous concrete. 
     
     
         18 . The method of  claim 16 , wherein the interconnected capillaries are configured to allow solids suspended within the fluid to pass through the previous concrete. 
     
     
         19 . The method of  claim 16 , wherein the interconnected capillaries are configured to filter contaminants from the fluid as it passes through the previous concrete. 
     
     
         20 . The method of  claim 16 , wherein the base mix further includes zeolite. 
     
     
         21 . The method of  claim 16 , further comprising:
 pumping the previous concrete in a wet state.