US5395658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frost de-icing salt-resistance of concrete constructions
Assignee: Individual
•
Filing: 1993-06-10
•
Granted: 1995-03-07
•
Expires: 2013-06-10
Abstract
Abstract The frost-de-icing salt-resistance of concrete structures is improved by applying to the surface of the concrete an aqueous alkali silicate solution comprising ______________________________________ slilicic acid (calculated as SiO 2 ) 30-32 moles alkali metal ions (calculated as Na +1 ) 23-24.3 moles C 1 -C 3 alcohol (calculated as ethanol) 2-2.1 moles carbonate (calculated as CO 3 -2 ) 1.6-2.1 moles water at least 400 moles. ______________________________________
Inventors
- 👤 Hans Jaklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:22
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B28/00; C04B28/24; C04B28/26; C04B41/45; C04B41/50; C04B41/5076; C04B41/5089; C09; C09K; C09K3/00; C09K3/18; E; E01; E01C; E01C11/00; E01C11/24; E01C11/245; C04B2111/00; C04B2111/00241; C04B2111/00405; C04B2111/76; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A method for improving the frost-de-icing salt resistance of concrete structures comprising applying to the surface of a concrete structure an alkali silicate solution comprising: ______________________________________
slilicic acid (calculated as SiO.sub.2)
30-32 moles
alkali metal ions (calculated as Na.sup.+1)
23-24.3 moles
C.sub.1 -C.sub.3 alcohol (calculated as ethanol)
2-2.1 moles
carbonate (calculated as CO.sub.3.sup.-2)
1.6-2.1 moles
water at least 400 moles.
______________________________________
Claim 2
Independent Claim
61 words
A method for improving the frost-de-icing salt resistance of concrete structures comprising applying to the surface of a concrete structure an alkali silicate solution comprising: ______________________________________
slilicic acid (calculated as SiO.sub.2)
30-32 moles
alkali metal ions (calculated as Na.sup.+1)
23-24.3 moles
C.sub.1 -C.sub.3 alcohol (calculated as ethanol)
2-2.1 moles
carbonate (calculated as CO.sub.3.sup.-2)
1.6-2.1 moles
water at least 400 moles.
______________________________________
Claim 3
Dependent Claim
42 words
A method for improving the frost-de-icing salt resistance of concrete structures according to claim 1 wherein the amount of said alkali silicate solution applied to said surface of said concrete structure is greater than 100 grams per square meter of said surface.
Claim 4
Dependent Claim
30 words
A method according to claim 2 wherein the amount of said alkali silicate solution applied to said surface is from 100 to 300 grams per square meter of said surface.
Claim 5
Dependent Claim
24 words
A method according to claim 2 wherein said method of treatment is carried out not earlier than 28 days after the concrete is poured.
Claim 6
Dependent Claim
24 words
A method according to claim 3 wherein said method of treatment is carried out not earlier than 28 days after the concrete is poured.
Claim 7
Dependent Claim
51 words
An aqueous alkali silicate composition for treatment of concrete to improve its frost-de-icing salt resistance comprising: ______________________________________
silicic acid (calculated as SiO.sub.2)
30-32 moles
alkali metal ions (calculated as Na.sup.+1)
23-24.3 moles
C.sub.1 -C.sub.3 alcohol (calculated as ethanol)
2-2.1 moles
carbonate (calculated as CO.sub.3 .sup.-2)
1.6-2.1 moles
water 400-1200 moles
______________________________________
Claim 8
Dependent Claim
51 words
An aqueous alkali silicate composition for treatment of concrete to improve its frost-de-icing salt resistance comprising: ______________________________________
silicic acid (calculated as SiO.sub.2)
30-32 moles
alkali metal ions (calculated as Na.sup.+1)
23-24.3 moles
C.sub.1 -C.sub.3 alcohol (calculated as ethanol)
2-2.1 moles
carbonate (calculated as CO.sub.3 .sup.-2)
1.6-2.1 moles
water 400-1200 moles
______________________________________
Claim 9
Dependent Claim
27 words
A method for improving the frost-de-icing salt resistance of concrete structures comprising applying to the surface of a concrete structure the alkali silicate solution of claim 6.
Claim 10
Dependent Claim
42 words
A method for improving the frost-de-icing salt resistance of concrete structures according to claim 7 wherein the amount of said alkali silicate solution applied to said surface of said concrete structure is greater than 100 grams per square meter of said surface.
Claim 11
Dependent Claim
34 words
The method according to claim 8 wherein the amount of said alkali silicate solution applied to said surface of said concrete structure is from 100 to 300 grams per square meter of said surface.
Claim 12
Dependent Claim
23 words
The method of claim 8 wherein said method of treatment is carried out not earlier than 28 days after the concrete is poured.
Claim 13
Dependent Claim
23 words
The method of claim 9 wherein said method of treatment is carried out not earlier than 28 days after the concrete is poured.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-06 | 1998-09-05 | 1999-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-06 | 2002-09-05 | 2003-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-06 | 2006-09-05 | 2007-03-07 | $7700.00 | Window Closed / Lapsed |