Base Repair of Lahti   ®    - unshrinkable single composition. It is a loose powder gray, not containing prills and mechanical impurities. The composition of the basic repair of Lahti   ®   is composed of cement, mineral fillers and chemical additives.
Field application:

Base Repair of Lahti ® - wearproof material intended for the repair of concrete and reinforced concrete structures. It can be used to repair defects in the depth of 5-60 mm. Defects depth of more than 60 mm stop stripped of the injury. High thixotropic allows cause of both the horizontal and the vertical surface.
typically used:

    * floors;
    * stairs;
    * staircases;
    * ramps;
    * edge panels;
    * brick wall;
    * prefabricated vaults;
    * ceilings;
    * columns;
    * parapets;
    * bridges;
    * concrete pipe (trumpet, angles, connect);
    * vodopropusknye facilities, etc.
      Instructions for use

      Training grounds

          Age of concrete in construction to restore the time of causing the basic repair of Lahti ® must be at least 28 days. Clear the surface, which would cause the composition of any foreign matter (dust, oil, grease, oil, bitumen, etc.). Organic matter can wash away with the concrete surface of 10-15% solution of hydrochloric acid, after which the surface should be washed with clean water. Remove fragile parts of the surface, including areas covered with cement milk. Cracks should be expanded and deepened not less than 5 mm. When laying floors, or when to remove loose parts of concrete or oil stain is impossible, it is recommended that the base is tentatively zagruntovat latex primers.

          Preparation of solutions

              Solution prepared in the following proportions:
              1 kg of basic repair of Lahti ® at 0.13 liters of water
              average consumption of material (dry mixes): 1.7 kg / dm 3 .

              The solution should be prepared in such numbers that it has been used for 45 minutes. As zatvoritelya solution is used for making clean water.
              Carefully measured in the required amounts of water for zamesa and pour it into a tank with a basic repair composition Lahti ® . Mix until even consistency. Zameshivanie solution is carried out manually , or mechanically.
              Forbidden to re-add water! Do not add cement and sand .

              Surface

                  At

                  repair stations solution cause spatula or Masterkov in one or more layers. The thickness of a single layer may be as high as 60 mm. With temperatures above +30 ° C processed should repair the composition station within 24 hours prevent overly rapid drying, if necessary, moisten with water. Protect repaired area of vibration or pressure to achieve the desired strength.
                  Specifications Used scratch repair of Lahti ® < / span>

  • characteristics of the material

    Value
    make on the strength of contraction but not least:
    - in 7 days M300
    - after 28 days M500
    bond strength with concrete, MPa, no less:
    - in 3 days 1,2
    - after 28 days 1,5
    Preparedness exploitation through, hours:
    - to load steps 7
    - for transport 24
    viability of mines. 45
    to make waterproof, no less W 12
    Mark on morozostoykosti F 200
    flexural strength, MPa, no less:
    - in 7 days 4,0
    - after 28 days 8,0
    Istiraemost, g / cm 2 , no more 0,25
    Make a mixture of mobility Pk2
    Balance sieve № 2,5,%, not more 2
    Vodouderzhivayuschaya capacity%, at least 90
    average cost of material, kg / dm 3 1,7
    temp, ° C +5 - +50
    warranty storage month. 6

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