Method of accelerating curing and improving the physical properties of pozzolanic and cementitious-based material

• US 9,505,657 B2
• Filed: 01/30/2015
• Issued: 11/29/2016
• Est. Priority Date: 11/11/2011
• Status: Active Grant

• Current Assignee: Romeo Ilarian Ciuperca
• Original Assignee: Romeo Ilarian Ciuperca
• Inventors: Ciuperca, Romeo Ilarian
• Primary Examiner(s): SCHIFFMAN, BENJAMIN A
• Application Number:
  US14/610,772
• Publication Number:
  US 20150144031A1
• Time in Patent Office: 669 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B28B 7/348 of plastic material or rubber
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/28 of calcium
• CPC Class Codes: C04B 14/305 Titanium oxide, e.g. titanates
• CPC Class Codes: C04B 18/08 Flue dust , i.e. fly ash
• CPC Class Codes: C04B 18/141 Slags
• CPC Class Codes: C04B 2103/0088 Compounds chosen for their latent hydraulic characteristics, e.g. pozzuolanes
• CPC Class Codes: C04B 2201/50 for the mechanical strength
• CPC Class Codes: C04B 28/021 Ash cements, e.g. fly ash cements fly ash as filler C04B18/08; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration alkali-activated combustion residues as such C04B7/243; mixtures of the lime-pozzuolane type C04B28/18; Kiln dust cements
• CPC Class Codes: C04B 28/04 Portland cements
• CPC Class Codes: C04B 28/08 Slag cements
• CPC Class Codes: C04B 40/02 Selection of the hardening environment
• CPC Class Codes: C04B 7/02 Portland cement
• CPC Class Codes: C04B 7/04 using raw materials containing gypsum , i.e. processes of the Mueller-Kuehne type
• CPC Class Codes: C04B 7/14 Cements containing slag slags from waste incineration C04B7/28
• CPC Class Codes: C04B 7/26 from raw materials containing flue dust , i.e. fly ash C04B7/243 takes precedence
• CPC Class Codes: Y02W 30/91 Use of waste materials as fillers for mortars or concrete

Abstract

The invention comprises a method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi. The method comprises placing a cement-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5, wherein the cement-based material comprises approximately 10% to approximately 80% by weight portland cement, and at least one of approximately 10% to approximately 90% by weight slag cement and approximately 5% to approximately 80% by weight fly ash. The invention also comprises a method of making a cement-based object or structure. The invention further comprises objects or structures made by the foregoing methods.

Claims

1. A method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi, the method comprising:

placing a plastic cementitious-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5 whereby at least a portion of the initial heat of hydration of the cementitious-based material is retained in the insulated concrete form or mold;

wherein the cementitious-based material comprises;

aggregate; and

cementitious material, wherein the cementitious material consists essentially of;

approximately 30% to approximately 80% by weight portland cement; and

the remaining cementitious material consists essentially of;

(a) one or more supplementary cementitious materials;

or

(b) one or more pozzolanic materials;

or

(c) a mixture of (a) and (b).

2. The method of claim 1, wherein the insulated concrete form has an R-value of at least 4.

3. The method of claim 1, wherein the insulated concrete form has an R-value of at least 8.

4. The method of claim 1, wherein the cementitious material further consists essentially of approximately 0.1% to approximately 10% by weight Wollastonite.

5. The method of claim 1, wherein the supplementary cementitious materials are slag cement, fly ash, silica fume, rice husk ash, metakaolin, or other siliceous, aluminous or aluminosiliceous materials that react with calcium hydroxide in the presence of water.

6. The method of claim 5, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

7. The method of claim 5, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

8. The method of claim 5, wherein the cementitious material further consisting essentially of a finely divided mineral.

9. The method of claim 8, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

10. The method of claim 8, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

11. The method of claim 1, wherein the cementitious material consists essentially of one or more supplementary cementitious materials selected from slag cement and fly ash;

and

one or more of calcium oxide, calcium hydroxide, calcium carbonate, sodium hydroxide, magnesium hydroxide, or latex or polymer admixtures that have reactive hydroxyl groups.

12. The method of claim 11, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

13. The method of claim 11, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

14. The method of claim 11, wherein the cementitious material further consisting essentially of a finely divided mineral.

15. The method of claim 14, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

16. The method of claim 14, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

17. The method of claim 1, wherein the cementitious material consists essentially of:

one or more supplementary cementitious materials selected from slag cement, fly ash, silica fume, rice husk ash, metakaolin, and other siliceous, aluminous or aluminosiliceous materials that react with calcium hydroxide in the presence of water; and

one or more of calcium oxide, calcium hydroxide, calcium carbonate, sodium hydroxide, magnesium hydroxide, or latex or polymer admixtures that have reactive hydroxyl groups.

18. The method of claim 17, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

19. The method of claim 17, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

20. The method of claim 17, wherein the cementitious material further consisting essentially of a finely divided mineral.

21. The method of claim 20, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

22. The method of claim 20, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

23. The method of claim 1, wherein the cementitious material consists essentially of:

one or more pozzolanic materials; and

one or more of calcium oxide, calcium hydroxide, calcium carbonate, sodium hydroxide, magnesium hydroxide, or latex or polymer admixtures that have reactive hydroxyl groups.

24. The method of claim 23, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

25. The method of claim 23, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

26. The method of claim 23, wherein the cementitious material further consisting essentially of a finely divided mineral.

27. The method of claim 26, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

28. The method of claim 26, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.

29. The method of claim 1, wherein the cementitious material further consisting essentially of a finely divided mineral.

30. The method of claim 29, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 4.

31. The method of claim 29, wherein the insulated concrete form has insulation on the exposed surfaces of the cement-based object or structure each having an R-value of at least 8.