REPAR STEEL

Passivating two-component cement, anticorrosive, for reinforcing rods

Code: REP.0132

Components: 2

Appearance: Liquid + Powder

Two-component cement slurry, modified with flexibilising resins and specific anticorrosive agents for the passivating treatment of oxidised reinforcement rods, in the restoration of degraded concrete.

Linee di appartenenza

Certification obtained and Standards

Products and systems for the protection and repair of concrete structures. Reinforcement corrosion protection

EN 1504-7

Products and systems for the protection and repair of concrete structures. Reinforcement corrosion protection

Specification for Mortar for Masonry - General purpose rendering/plastering mortar (GP)

EN 998-1

Specification for Mortar for Masonry - General purpose rendering/plastering mortar (GP)

General characteristics

maximum-diameter-of-aggregate

Maximum diameter of aggregate: 0.25 mm

shelf-life

Shelf-life: 12 months

pot-life

Pot-life: 45 min

nonflammable

Nonflammable

temperature-of-use

Temperature of use: +5 / +35 °C

Technical specifications

Resistance to the extraction of the steel bars with improved adhesion

> 90 %

Compressive strength after 28 days

50 MPa

Reaction to fire

B-s2 d0 _

Flexural strength at 01 day

5 MPa

Compressive strength after 01 day

20 MPa

Density

2.0 kg/dm³

Coefficient of permeability

16.8 μ

Corrosion resistance

< 0.5 mm

Flexural strength after 28 days

10 MPa

Adhesion to substrate

≥ 2.0 MPa

Capillary absorption

0.2 kg•h^0.5/m²

Available colours

- Light blu

Packaging and dimensions

- Bottle 1.6 kg [B]

- Kit: 1 Pail 3.4 kg [A] + 1 Bottle 1.6 kg [B]

- Pail 3.4 kg [A]

Characteristics

The anticorrosive efficacy of REPAR STEEL is determined by the high alkalinity and by the superpozzolanic reaction of the components of the anhydrous system, as well as by the presence, in the liquid component (B), of migratory and interfacial corrosion inhibitors, capable of carrying out cathodic and anodic protection, based on organic compounds capable of making ferrous ions unavailable for feeding electrochemical corrosion processes. The polymeric components of the solution also determine further increases in the anticorrosive efficacy, especially against aggressive attacks deriving from chlorides and sulphates, and increase the adhesion between the treated bar and the concrete (adherence test according to EN 15184 in compliance with the UNI EN technical standard 1504 "Products and systems for the protection and repair of concrete structures - Part 7: Corrosion protection of reinforcements").

Consumption

From 0.03 to 0.1 kg of REPAR STEEL for each linear metre of steel bar to be treated.

Use fields

Passivating protective anti-corrosive treatment for reinforcing rods in restoration works in reinforced concrete.

Preparation of supports

Carefully remove non-adhering rust, present on the metal surfaces of the exposed reinforcement rods by blasting or deep brushing , until the following condition is reached: "almost white metal" (metal colour as if it has just come out of extrusion).

Use method

The mixing of the two components may be implemented by an external mixer or by using a site bucket. Pour the blue solution (component B) into the bucket, while adding the powder gradually and during mixing (component A), mixing until the mixture is completely lump-free; apply by brush on the prepared reinforcing surfaces, for a consumption of about 100 g per metre of oxidized reinforcement to be passivated.

Application methods

- Brush

Tool cleaning

- Water

Permitted supports

- Rusty reinforcement rods

Warnings, precautions and Ecology

The overflow of the product on the concrete adjacent to the treated rids does not entail any problem.

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