US2016186430A1PendingUtilityA1

Uniform texture for concrete walls

51
Assignee: LITHOCRETE INCPriority: Mar 15, 2007Filed: Mar 10, 2016Published: Jun 30, 2016
Est. expiryMar 15, 2027(~0.7 yrs left)· nominal 20-yr term from priority
E04B 2/84C04B 2111/00612C04B 41/0018C04B 41/009C04B 41/5079C04B 28/02
51
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Claims

Abstract

A method of forming a concrete wall having a substantially uniform exterior surface texture. The method includes the initial step of pouring concrete into a wall form. The concrete is poured from a first mixture and is allowed to cure. After the concrete is cured, the wall form is removed from the resultant concrete base structure. A roughened texture is then created on the base structure. A finishing mixture is then applied to the roughened texture. The finishing mixture may be created by separating the aggregate from a portion of the remaining first mixture. The finishing mixture creates a smooth texture on the exterior surfaces of the initially formed base structure.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of forming a concrete structure comprising the steps of:
 (a) pouring a first concrete mixture into a wall form, wherein the first concrete mixture includes large aggregate;   (b) curing the first concrete mixture to form a concrete base structure;   (c) removing the wall form from the base structure;   (d) creating a roughened exterior surface on the base structure;   (e) creating a finishing mixture by separating the large aggregate from a portion of the first concrete mixture; and   (f) applying the finishing mixture to the roughened exterior surface of the base structure.   
     
     
         2 . The method of  claim 1 , wherein the roughened exterior surface is created by applying a form retarder to the base structure. 
     
     
         3 . The method of  claim 1 , wherein the roughened exterior surface is created by applying a spray on retarder to the base structure. 
     
     
         4 . The method of  claim 1 , wherein the roughened surface is created by sand blasting the base structure. 
     
     
         5 . The method of  claim 1 , wherein the roughened surface is created by acid washing the base structure. 
     
     
         6 . The method of  claim 1 , wherein the roughened surface is created by chemically etching the base structure. 
     
     
         7 . The method of  claim 1 , further comprising the step of troweling the finishing mixture once applied to the base structure. 
     
     
         8 . The method of  claim 1 , further comprising the step of allowing the finishing mixture to cure. 
     
     
         9 . The method of  claim 8 , further comprising the step of acid washing the cured finishing mixture. 
     
     
         10 . A method of forming a concrete structure comprising the steps of:
 (a) pouring a first concrete mixture into a wall form, wherein the first concrete mixture contains large aggregate;   (b) curing the first concrete mixture to form a concrete base structure;   (c) removing the wall form from the base structure;   (d) creating a roughened surface on the base structure;   (e) creating a finishing mixture by separating large aggregate from a second mixture of concrete; and   (f) applying the finishing mixture to the roughened exterior surface of the base structure.   
     
     
         11 . The method of  claim 10 , wherein the roughened exterior surface is created by applying a form retarder to the base structure. 
     
     
         12 . The method of  claim 10 , wherein the roughened exterior surface is created by applying a spray on retarder to the base structure. 
     
     
         13 . The method of  claim 10 , wherein the roughened surface is created by sand blasting the base structure. 
     
     
         14 . The method of  claim 10 , wherein the roughened surface is created by acid washing the base structure. 
     
     
         15 . The method of  claim 10 , wherein the roughened surface is created by chemically etching the base structure. 
     
     
         16 . The method of  claim 10 , further comprising the step of allowing the finishing mixture to cure. 
     
     
         17 . The method of  claim 16 , further comprising the step of acid washing the finishing mixture. 
     
     
         18 . A method of forming a concrete structure having a substantially uniform exterior surface texture, comprising the steps of:
 (a) curing a first mixture of concrete including large aggregate to form a concrete base structure;   (b) creating a finishing mixture by separating the large aggregate from a portion of the first concrete mixture; and   (c) applying the finishing mixture to the base structure.   
     
     
         19 . The method of  claim 18  wherein step (a) comprises initially pouring the first mixture of concrete into a wall form. 
     
     
         20 . The method of  claim 18  wherein step (a) further comprises creating a roughened exterior surface on the base structure.

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