Summary


Functional shotcrete repair mortar.

Methods

Click on a method's number to get a more detailed description.

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RE-Monotar


Product Description

RE-Monotar and RE-Monotar S is a premix mortar compounded of cement, special additives, functional admixtures, powder polymer and grade adjusting aggregates. It is also a functional polymer mortar by mixing water on the job site.

Application

    1. Damaged concrete structures
    2. Section repair for reinforced concrete structures

Application Equipment

    1. Mixing equipment: Electrical power mixer. Small silo & continuous mixer (1m3).
    2. Gauge: Scales.
    3. Application equipment: Recommended spraying tool, air compressor, hose, nozzle, trowel.
    4. Specification of sprayer:
      Max capacity: 1-8 Gallon/min (adjustable).
      Compressor: 7.5HP or greater.
      RPM: 20-260rpm.
      Pump: Mono pump.
      Hose: 35mm / 30 bar.
      Nozzle: T=15mm urethane nozzle pipe.

Features

    1. Excellent water-tightness & durability
    2. Good adhesive performance with existing concrete
    3. Cracks inhibitor by drying shrinkage
    4. General applying plasters & shotcrete workability

Test Results

Test Item
Unit
Test Result
Age 28 days
Test Method
Adhesive
Strength
N/mm²
1.8
KS F 4042-´02
Compressive Strength
N/mm²
48.00
KS F 4042-´02

Flexural
Strength

N/mm²
11.3
KS F 4042-´02
Permeability
Qty.
g
4
KS F 4042-´02


Mixing Ratio

RE-Monotar
Type A
Refined Water
1 kg
160~170 g


Directions

    1. Measure 1 lb. of Type A and .16 – .17 lb. of Type B in each container
    2. At initial mixing, mix .16 lb. of Type B to 1 lb. of Type A, and add Type B within 10% in consideration of workability in 5 minutes and mix again for 3 minutes before application.
    3. Dampen concrete surface with refined water before application to ensure that concrete does not wick away moisture from mortar mixture in hotter weather.
    4. Apply the mortar using a trowel or recommended spraying tool.
    5. * When applying using a sprayer:
      Spray refined water or diluted mortar first to reduce the friction inside the sprayer, and then spray the mortar.
    6. When an application is suspended more than 30 minutes, remove the material inside the hose for cleaning.
    7. Aim spray gun at the surface at right angle, and spray the mortar, while moving in round direction, 500mm from the surface.
    8. Apply prime coating shall be at 5mm or less to fill the void and to increase the adhesion.

Caution

    1. A sufficient curing is required under the temperature below 50°F.
    2. In case of any condensation on surface, dry the surface using a heater, fan, air compressor or portable burner.
    3. In case of hot-weather concreting on dried surface, spray refined water or liquid to prevent the mortar from drying too rapidly.
    4. Limit the amount of mixed material at normal temperature so that it can be applied within 30 minutes.
    5. Do not use if powder hardens or freezes.
    6. Do not apply at temperatures below 31°F or above 95°F.
    7. As the viscosity varies depending on temperature and humidity, keep agitating to prevent the aggregate from being segregated in a low viscosity, and add type B within a mixing ratio allowable before agitating the material in a high viscosity.
    8. Protect the surface from external impact at least for 24 hours after application, and continue the following work after checking curing state.

Storage

    1. Refer to instruction on storage of powder or liquid-type material for further details. If problems persists, contact the manufacturer.

Other

    1. Those not instructed in specifications may follow standard concrete specifications.
    2. In the event of any discrepancies between the specification and work environment, consult the manufacturer or designer before application.



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