ISOMAT MEGACRET-40 Fiber-reinforced cementitious repair mortar grey - 25Kg

MEGACRET-40

High-strength, fiber-reinforced repairing cement mortar

Description

High-strength, fiber-reinforced cementitious

patching mortar, enriched with polymers. It

provides:

• Superior strength.

• Very good bonding to the substrate.

• Excellent workability.

• Reduced water permeability.

• Volume stability.

It is classified as a CC R4 mortar for concrete

repairs, according to EN 1504-3. Certificate Nr.

2032-CPR-10.11.

MEGACRET-40 has received an Environmental

Product Declaration (EPD) following an

assessment of its life-cycle environmental impacts.

Registration No: S-P-06172, The International

EPD® System.

Fields of application

MEGACRET-40 is suitable for highly demanding

repairs in concrete elements. It is applied with a

trowel or pneumatically with a gunite process on

floors, walls or ceilings.

Technical data

Form: cementitious powder

Color: grey

Grain size: up to 3 mm

Water demand: 4.60 l/25 kg bag

Bulk density

of dry mortar: 1.40 ± 0.10 kg/l

Bulk density

of fresh mortar: 2.10 ± 0.10 kg/l

Compressive strength:

• After 24 hours: > 20.00 N/mm2

• After 7 days: > 35.00 N/mm2

• After 28 days: > 50.00 N/mm2

Flexural strength: > 8.00 N/mm2

Elastic modulus 21.70 GPa

Carbonation resistance Pass

Chloride ion content: 0.00 %

Adhesion: ≥ 2.10 N/mm2

Thermal compatibility

Part 1 (50 freeze-thaw

cycles): ≥ 2.00 N/mm2

Capillary water

absorption: 0.48˙kg˙m-2

˙h

-0.5

Reaction to fire: Euroclass A1

Pot life: 2 h at +200C

Max. thickness/layer: 4 cm

Directions for use

1. Substrate preparation

The substrate must be free of dust, grease or any

foreign matter. Before application, the substrate

has to be thoroughly dampened.

2. Application

One 25 kg bag of MEGACRET-40 is gradually

added into 4.60 kg of water under continuous

stirring, until a homogenous, tight mass is formed,

appropriate for repair works. Either a low-speed

mixer or a concrete mixer could be used for the

mixing. The material should be applied (pressed)

in the desired thickness - up to 4 cm per layer -

with a trowel or pneumatically with a gunite

process. When a second layer is required, the

surface of the first layer should be roughened, to

achieve better adhesion.

The final surface should be well protected from

dehydration by being covered with wet cloths or

polyethylene sheets, or repeatedly dampened for

48 hours.

Consumption

Approx. 17.5 kg/m2

/cm of layer thickness.

Packaging

MEGACRET-40 is available in 25 kg paper bags

and 5 kg plastic bags.

The technical information and instructions supplied in this datasheet are based on the knowledge and experience of the Department of Research

and Development of our company and on results from long-term applications of the product in practice. The recommendations and suggestions

referring to the use of the product are provided without guarantee, since site conditions during the applications are beyond the control of our

company. Therefore the user is responsible for confirming that the chosen product is suitable for the envisaged application. The present edition of

this technical datasheet automatically cancels any previous one concerning the same product. | Edition: 03.10.2023

Shelf-life - Storage

• Paper bags of 25 kg:

12 months from production date.

• Plastic bags of 5 kg:

18 months from production date.

The shelf-life mentioned above is valid, provided

that the product is stored in original, unopened

packaging, in places protected from moisture and

frost.

Remarks

• Application temperature must be between +50C

and +300C.

• At low temperatures and in case early strength

development is required, it is recommended to

mix the material with lukewarm water.

• The product contains cement that reacts with

water forming alkaline solutions, thus is

classified as irritant.

• Consult the directions for safe use and

precautions written on the package.