IT1249734B - ADDITIVES TO INHIBIT STEEL CORROSION IN CONCRETE. - Google Patents
ADDITIVES TO INHIBIT STEEL CORROSION IN CONCRETE.Info
- Publication number
- IT1249734B IT1249734B ITRM910932A ITRM910932A IT1249734B IT 1249734 B IT1249734 B IT 1249734B IT RM910932 A ITRM910932 A IT RM910932A IT RM910932 A ITRM910932 A IT RM910932A IT 1249734 B IT1249734 B IT 1249734B
- Authority
- IT
- Italy
- Prior art keywords
- concrete
- additives
- steel corrosion
- additive
- fatty acid
- Prior art date
Links
- 239000000654 additive Substances 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 230000007797 corrosion Effects 0.000 title abstract 2
- 238000005260 corrosion Methods 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000008346 aqueous phase Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 150000004671 saturated fatty acids Chemical class 0.000 abstract 1
- 239000000344 soap Substances 0.000 abstract 1
- -1 unsaturated fatty acid ester Chemical class 0.000 abstract 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 abstract 1
- 239000002569 water oil cream Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
L'invenzione riguarda un additivo per inibire la corrosione dell'acciaio nel calcestruzzo comprendente un'emulsione olio nell'acqua in cui la fase oleosa comprende dal 10 al 55% d'un estere di acido grasso insaturo, dall'1 al 15% d'un (alchil in C6-C12)-fenolo etossilato e dall'1 al 5% d'un estere di acido carbossilico alifatico con un alcool contenente 1, 2 o 3 gruppi idrossi, e la fase acquosa comprende dallo 0,1 al 5,0% d'un acido grasso saturo in C12-C30, dallo 0,1 all'1,0% d'un composto anfotero, dal 2 al 10% d'un glicole e dallo 0,01 al 2% d'un sapone. L'additivo viene raggiunto al calcestruzzo prima dell'impiego.The invention relates to an additive for inhibiting corrosion of steel in concrete comprising an oil-water emulsion in which the oil phase comprises from 10 to 55% of an unsaturated fatty acid ester, from 1 to 15% of an (alkyl in C6-C12) ethoxylated phenol and from 1 to 5% of an aliphatic carboxylic acid ester with an alcohol containing 1, 2 or 3 hydroxy groups, and the aqueous phase comprises from 0.1 to 5 , 0% of a saturated fatty acid in C12-C30, from 0.1 to 1.0% of an amphoteric compound, from 2 to 10% of a glycol and from 0.01 to 2% of a soap. The additive is added to the concrete before use.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62634990A | 1990-12-12 | 1990-12-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITRM910932A0 ITRM910932A0 (en) | 1991-12-12 |
| ITRM910932A1 ITRM910932A1 (en) | 1993-06-12 |
| IT1249734B true IT1249734B (en) | 1995-03-09 |
Family
ID=24510028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITRM910932A IT1249734B (en) | 1990-12-12 | 1991-12-12 | ADDITIVES TO INHIBIT STEEL CORROSION IN CONCRETE. |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3264507B2 (en) |
| CH (1) | CH684002A5 (en) |
| DE (1) | DE4140399A1 (en) |
| FR (1) | FR2670480B1 (en) |
| IT (1) | IT1249734B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH685874A5 (en) * | 1993-10-21 | 1995-10-31 | Kibag | Biodegradable, liq., pH-neutral additive for cement concrete and mortar |
| EP0812306A2 (en) * | 1995-03-01 | 1997-12-17 | Mbt Holding Ag | A method for inhibiting corrosion of reinforced concrete |
| US5641352A (en) * | 1995-10-25 | 1997-06-24 | W.R. Grace & Co.-Conn. | Nitrogenous strength enhancers for portland cement |
| DE29701201U1 (en) * | 1996-11-21 | 1997-04-24 | Max Frank Gmbh & Co Kg, 94339 Leiblfing | Spacers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO83814B1 (en) * | 1981-11-03 | 1984-04-30 | INSTITUTUL DE CERCETARI îN CONSTRUCTII SI ECONOMIA CONSTRUCTIILOR | Corrosion protection solution and process for preparing the same |
| DE3419070A1 (en) * | 1984-05-22 | 1985-11-28 | Erdökémia Erdögazdasági Vegyi és Ipari Vállalat, Budapest | Anticorrosive damp-proofing composition for coating surfaces or for adhesive bonding |
| DD262765A3 (en) * | 1987-04-10 | 1988-12-14 | Bauakademie Ddr | CORROSION PROTECTION COATING FOR STEEL, ESPECIALLY FOR REINFORCING STEEL IN CONCRETE |
| US4851043A (en) * | 1987-11-24 | 1989-07-25 | Ashland Oil, Inc. | Water reducible soft coating compositions |
-
1991
- 1991-12-07 DE DE4140399A patent/DE4140399A1/en not_active Withdrawn
- 1991-12-09 CH CH3617/91A patent/CH684002A5/en not_active IP Right Cessation
- 1991-12-10 FR FR9115409A patent/FR2670480B1/en not_active Expired - Fee Related
- 1991-12-11 JP JP32737191A patent/JP3264507B2/en not_active Expired - Lifetime
- 1991-12-12 IT ITRM910932A patent/IT1249734B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| JP3264507B2 (en) | 2002-03-11 |
| DE4140399A1 (en) | 1992-06-17 |
| FR2670480A1 (en) | 1992-06-19 |
| JPH04275960A (en) | 1992-10-01 |
| FR2670480B1 (en) | 1995-09-22 |
| CH684002A5 (en) | 1994-06-30 |
| ITRM910932A0 (en) | 1991-12-12 |
| ITRM910932A1 (en) | 1993-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971128 |