IP Library Granted Patent US 8,962,087
Granted Patent B2
US 8,962,087 · App. 14/062,058 · Granted Feb 24, 2015

Uniform texture for cast in place walls

Inventors: Ronald D. Shaw (Corona Del Mar, CA); Lee A. Shaw (Newport Beach, CA)
Assignee: Lithocrete, Inc.
C04B41/0018C04B41/5079C04B41/009C04B28/02C04B2111/00612
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Quick Facts
Patent No.
US 8,962,087
App. No.
14/062,058
Granted
Feb 24, 2015
Kind
B2
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 (35)

1. A method of forming a concrete structure comprising the steps of:

pouring a first concrete mixture into a form, wherein the first concrete mixture includes large aggregate;

allowing the first concrete mixture to harden and form a concrete base structure;

removing the form from the base structure;

creating a roughened exterior surface on the base structure;

creating a finishing mixture by separating the large aggregate from a portion of the first concrete mixture; and

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 harden.

9. The method of claim 8 , further comprising the step of acid washing the hardened finishing mixture.

10. A method of forming a concrete structure comprising the steps of:

pouring a first concrete mixture into a form, wherein the first concrete mixture contains large aggregate;

allowing the first concrete mixture to harden and form a concrete base structure;

removing the form from the base structure;

creating a roughened surface on the base structure;

creating a finishing mixture by separating large aggregate from a second mixture of concrete; and

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 harden.

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:

allowing a first mixture of concrete including large aggregate to harden and form a concrete base structure;

creating a finishing mixture by separating the large aggregate from a portion of the first concrete mixture; and

applying the finishing mixture to the base structure.

19. The method of claim 18 further comprising the step of pouring the first mixture of concrete into a wall form.

20. The method of claim 18 further comprising the step of creating a roughened exterior surface on the base structure.

Assignments (3)
CHANGE OF NAME Recorded Jul 9, 2019
From: SHAW CRAFTSMAN CONCRETE, LLC
To: SHAW CRAFTSMEN CONCRETE, LLC
Reel/Frame 049706/0350 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 3, 2019
From: LITHOCRETE, INC.
To: SHAW CRAFTSMAN CONCRETE, LLC
Reel/Frame 049667/0102 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 25, 2013
From: SHAW, RONALD D.; SHAW, LEE A.
To: LITHOCRETE, INC.
Reel/Frame 031482/0626 →
Continuity (4)
Continuation 13595844 · Aug 27, 2012
Continuation 12837389 · Jul 15, 2010
Continuation 11724452 · Mar 15, 2007
Related Publication 20140050854A1 · Feb 20, 2014