US2005258401A1PendingUtilityA1

Corrosion protection for metals in cementitious material and method of applying and making the same

28
Individually held — no corporate assignee on recordPriority: Nov 7, 2002Filed: Nov 6, 2003Published: Nov 24, 2005
Est. expiryNov 7, 2022(expired)· nominal 20-yr term from priority
Inventors:D. Hobson LaneBrian ChambersS. Ray Taylor
C04B 41/5009C04B 22/085C04B 28/02C04B 41/65C04B 2103/61C04B 41/009C23F 2201/02C23F 11/181C04B 2111/26C04B 7/425
28
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Claims

Abstract

A method for preventing, inhibiting or reducing the corrosion of metals embedded in cementitious material. The method can comprise manufacturing lithium nitrate. The method can further comprise providing lithium nitrate for addition to a cementitious material at an effetive dosage rate. The dosage rate can be between about 0.01 gram moles per cubic foot of cementitious material and about 100 gram moles per cubic foot of cementitious material, or greater if desired or required. The reduced corrosion rate therefore increases the life expectancy of the structures formable from cementitious material. Some exemplary structures formable from the cementitious material include the following, but not limited thereto, pillars, bridge decks, bridges, road decks, roads, houses, buildings, pilings, railroads, warehouses, piers, parking structures, wharves, and/or any other structures desired and/or required, etc.

Claims

exact text as granted — not AI-modified
1 . A method for inhibiting the corrosion of metals embedded in a cementitious material, said cementitious material manufacturable from a process comprising the activities of: 
 manufacturing lithium nitrate; and    providing said lithium nitrate for addition to said cementitious material at an effective dosage rate.    
     
     
         2 . The method of  claim 1 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of cementitious material and about 100 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         3 . The method of  claim 1 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of cementitious material and about 0.1 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         4 . The method of  claim 1 , wherein said effective dosage rate is between about 0.1 gram moles of lithium nitrate per cubic foot of cementitious material and about 1 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         5 . The method of  claim 1 , wherein said effective dosage rate is between about 1 gram moles of lithium nitrate per cubic foot of cementitious material and about 10 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         6 . The method of  claim 1 , wherein said effective dosage rate is between about 10 gram moles of lithium nitrate per cubic foot of cementitious material and about 100 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         7 . The method of  claim 1 , wherein said effective dosage rate is about 0.815 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         8 . The method of  claim 1 , wherein said lithium nitrate is provided as a solid.  
     
     
         9 . The method of  claim 1 , wherein said lithium nitrate is provided in an aqueous solution.  
     
     
         10 . The method of  claim 1 , wherein said cementitious material is concrete.  
     
     
         11 . The method of  claim 1 , wherein said cementitious material is grout.  
     
     
         12 . The method of  claim 1 , wherein said cementitious material is mortar.  
     
     
         13 . The method of  claim 1 , wherein said cementitious material is pozzalanic cement.  
     
     
         14 . The method of  claim 1 , wherein said cementitious material is at least one of cement, grout, mortar, and pozzalanic cement, or any combination thereof.  
     
     
         15 . A method for inhibiting the corrosion of metals embedded in concrete or any other cementitious material, said concrete or cementitious material manufacturable from a process comprising the activities of: 
 obtaining lithium nitrate; and    mixing said lithium nitrate with said concrete or cementitious material at an effective dosage rate.    
     
     
         16 . The method of  claim 15 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of concrete or cementitious material and about 100 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         17 . The method of  claim 15 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of concrete or cementitious material and about 0.1 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         18 . The method of  claim 15 , wherein said effective dosage rate is between about 0.1 gram moles of lithium nitrate per cubic foot of concrete or cementitious material and about 1 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         19 . The method of  claim 15 , wherein said effective dosage rate is between about 1 gram moles of lithium nitrate per cubic foot of concrete or cementitious material and about 10 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         20 . The method of  claim 15 , wherein said effective dosage rate is between about 10 gram moles of lithium nitrate per cubic foot of concrete or cementitious material and about 100 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         21 . The method of  claim 15 , wherein said effective dosage rate is about 0.815 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         22 . A method for inhibiting the corrosion of metals embedded in grout, said grout manufacturable from a process comprising the activities of: 
 obtaining lithium nitrate; and    mixing said lithium nitrate with said grout at an effective dosage rate.    
     
     
         23 . The method of  claim 22 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 80 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         24 . The method of  claim 22 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 82 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         25 . The method of  claim 22 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 100 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         26 . The method of  claim 22 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 0.1 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         27 . The method of  claim 22 , wherein said effective dosage rate is between about 0.1 gram moles of lithium nitrate per cubic foot of grout and about 1 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         28 . The method of  claim 22 , wherein said effective dosage rate is between about 1 gram moles of lithium nitrate per cubic foot of grout and about 10 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         29 . The method of  claim 22 , wherein said effective dosage rate is between about 10 gram moles of lithium nitrate per cubic foot of grout and about 100 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         30 . The method of  claim 22 , wherein said effective dosage rate is about 0.815 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         31 . A method for inhibiting the corrosion of metals embedded in mortar, said mortar manufacturable from a process comprising the activities of: 
 obtaining lithium nitrate; and    mixing said lithium nitrate with said mortar at an effective dosage rate.    
     
     
         32 . The method of  claim 31 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 80 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         33 . The method of  claim 31 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 82 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         34 . The method of  claim 31 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 100 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         35 . The method of  claim 31 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 0.1 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         36 . The method of  claim 31 , wherein said effective dosage rate is between about 0.1 gram moles of lithium nitrate per cubic foot of mortar and about 1 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         37 . The method of  claim 31 , wherein said effective dosage rate is between about 1 gram moles of lithium nitrate per cubic foot of mortar and about 10 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         38 . The method of  claim 31 , wherein said effective dosage rate is between about 10 gram moles of lithium nitrate per cubic foot of mortar and about 100 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         39 . The method of  claim 31 , wherein said effective dosage rate is about 0.815 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         40 . A method for inhibiting the corrosion of metals embedded in cementitious material, said cementitious material manufacturable from a process comprising the activities of: 
 obtaining lithium nitrate; and    applying said lithium nitrate to the surface of said cementitious material at an effective dosage rate.    
     
     
         41 . The method of  claim 40 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of cementitious material and about 100 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         42 . The method of  claim 40 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of cementitious material and about 0.10 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         43 . The method of  claim 40 , wherein said effective dosage rate is between about 0.1 gram moles of lithium nitrate per cubic foot of cementitious material and about 1 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         44 . The method of  claim 40 , wherein said effective dosage rate is between about 1 gram moles of lithium nitrate per cubic foot of cementitious material and about 10 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         45 . The method of  claim 40 , wherein said effective dosage rate is between about 10 gram moles of lithium nitrate per cubic foot of cementitious material and about 100 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         46 . The method of  claim 40 , wherein said effective dosage rate is about 0.815 gram moles of lithium nitrate per cubic foot of cementitious material.  
     
     
         47 . A method for inhibiting the corrosion of metals in embedded in cementitious material, said cementitious material manufacturable from a previously heated Portland cement composition, said Portland cement manufacturable from a process comprising the activities of: 
 obtaining lithium nitrate; and    admixing said lithium nitrate with said Portland cement composition at an effective dosage rate.    
     
     
         48 . The method of  claim 47 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of cement and about 100 gram moles of lithium nitrate per cubic foot of cement.  
     
     
         49 . The method of  claim 47 , wherein said effective dosage rate is between about 0.01 gram moles of lithium nitrate per cubic foot of cement and about 0.1 gram moles of lithium nitrate per cubic foot of cement.  
     
     
         50 . The method of  claim 47 , wherein said effective dosage rate is between about 0.1 gram moles of lithium nitrate per cubic foot of cement and about 1 gram moles of lithium nitrate per cubic foot of cement.  
     
     
         51 . The method of  claim 47 , wherein said effective dosage rate is between about 1 gram moles of lithium nitrate per cubic foot of cement and about 10 gram moles of lithium nitrate per cubic foot of cement.  
     
     
         52 . The method of  claim 47 , wherein said effective dosage rate is between about 10 gram moles of lithium nitrate per cubic foot of cement and about 100 gram moles of lithium nitrate per cubic foot of cement.  
     
     
         53 . The method of  claim 47 , wherein said effective dosage rate is about 0.815 gram moles of lithium nitrate per cubic foot of cement.  
     
     
         54 . A method for inhibiting the corrosion of metals embedded in cementitious material, said cementitious material comprising a Portland cement composition, said Portland cement composition creatable from a method comprising the activities of: 
 obtaining lithium nitrate;    admixing said lithium nitrate with said Portland cement in an amount sufficient to inhibit the corrosion of metals; and    heating said material to form a Portland cement clinker.    
     
     
         55 . The method of  claim 54 , wherein said sufficient amount provides a molar ratio of lithium to sodium equivalent in the resultant cement clinker of between about 0.01:1 to about 10:1.  
     
     
         56 . The method of  claim 54 , wherein said sufficient amount provides a molar ratio of lithium to sodium equivalent in the resultant cement clinker of between about 0.01:1 to about 0.1:1.  
     
     
         57 . The method of  claim 54 , wherein said sufficient amount provides a molar ratio of lithium to sodium equivalent in the resultant cement clinker of between about 0.1:1 to about 1:1.  
     
     
         58 . The method of  claim 54 , wherein said sufficient amount provides a molar ratio of lithium to sodium equivalent in the resultant cement clinker of between about 1:1 to about 5:1.  
     
     
         59 . The method of  claim 54 , wherein said sufficient amount provides a molar ratio of lithium to sodium equivalent in the resultant cement clinker of between about 5:1 to about 10:1.  
     
     
         60 . A composition comprising: 
 a concrete or cementitious material comprising between about 0.01 gram moles of lithium nitrate per cubic foot of concrete to about 100 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.    
     
     
         61 . The composition of  claim 60 , wherein said concrete or cementitious material comprises between about 0.01 gram moles of lithium nitrate per cubic foot of concrete to about 0.1 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         62 . The composition of  claim 60 , wherein said concrete or cementitious material comprises between about 0.1 gram moles of lithium nitrate per cubic foot of concrete to about 1 gram moles of lithium nitrate per cubic foot of concrete.  
     
     
         63 . The composition of  claim 60 , wherein said concrete or cementitious material comprises between about 1 gram moles of lithium nitrate per cubic foot of concrete to about 10 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         64 . The composition of  claim 60 , wherein said concrete or cementitious material comprises between about 10 gram moles of lithium nitrate per cubic foot of concrete to about 100 gram moles of lithium nitrate per cubic foot of concrete or cementitious material.  
     
     
         65 . The method of  claim 60 , wherein said concrete or cementitious material comprises about 0.815 gram moles of lithium nitrate per cubic foot of grout or cementitious material.  
     
     
         66 . A composition comprising: 
 a grout comprising between about 0.01 gram moles of lithium nitrate per cubic foot of grout to about 100 gram moles of lithium nitrate per cubic foot of grout.    
     
     
         67 . The composition of  claim 66 , wherein said grout comprises between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 80 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         68 . The composition of  claim 66 , wherein said grout comprises between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 82 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         69 . The method of  claim 66 , wherein grout comprises between about 0.01 gram moles of lithium nitrate per cubic foot of grout and about 0.1 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         70 . The method of  claim 66 , wherein said grout between about 0.1 gram moles of lithium nitrate per cubic foot of grout and about 1 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         71 . The method of  claim 66 , wherein said grout comprises between about 1 gram moles of lithium nitrate per cubic foot of grout and about 10 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         72 . The method of  claim 66 , wherein said grout comprises between about 10 gram moles of lithium nitrate per cubic foot of grout and about 100 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         73 . The method of  claim 66 , wherein said grout comprises about 0.815 gram moles of lithium nitrate per cubic foot of grout.  
     
     
         74 . A composition comprising: 
 a mortar comprising between about 0.01 gram moles of lithium nitrate per cubic foot of mortar to about 100 gram moles of lithium nitrate per cubic foot of mortar.    
     
     
         75 . The composition of  claim 74 , wherein said mortar comprises between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 80 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         76 . The composition of  claim 74 , wherein said mortar comprises between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 82 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         77 . The method of  claim 74 , wherein mortar comprises between about 0.01 gram moles of lithium nitrate per cubic foot of mortar and about 0.1 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         78 . The method of  claim 74 , wherein said mortar between about 0.1 gram moles of lithium nitrate per cubic foot of mortar and about 1 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         79 . The method of  claim 74 , wherein said mortar comprises between about 1 gram moles of lithium nitrate per cubic foot of mortar and about 10 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         80 . The method of  claim 74 , wherein said mortar comprises between about 10 gram moles of lithium nitrate per cubic foot of mortar and about 100 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         81 . The method of  claim 74 , wherein said mortar comprises about 0.815 gram moles of lithium nitrate per cubic foot of mortar.  
     
     
         82 . A composition comprising: 
 a cementitious material comprising an effective amount lithium nitrate per cubic foot of cementitious material for inhibiting the corrosion of metals embedded in cementitious material.

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