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ENGINEERING GROUTS & REPAIR MORTARS

SYMBOLIZES STRENGTH, RAW MATERIAL, REINFORCED CONCRETE

MICRO CONCRETE

High Strength Free Flowing Cementitious Repair Concrete

General purpose, non-shrink, cementitious micro concrete. A specially prepared ready to use grey powder which requires addition of water only on site, to produce a free flowing, high strength-concrete which has micro fine aggregates and ability to penetrate into the recesses of concrete members and behind the reinforcement of the member under repair.
The material is based on Portland cements, graded aggregates and fillers, and additives which impart controlled expansion characteristics in the plastic state, while minimising water demand.

The low water requirement ensures high early strength and long-term durability.

For larger repairs, the mixed MICRO CONCRETE may be modified by the addition of 5mm to 12mm clean, graded, saturated surface dry aggregates at site. For exceptionally large repairs, our local office should be consulted.

The fluid micro-concrete repair material shall be a single Component, cement based, micro-concrete to which only the Site-addition of clean water (and approved graded coarse Aggregates where specified) shall be permitted. The micro concrete shall contain no metallic aggregates, or chlorides and shall be shrinkage compensated in the plastic state.

Test Standard Value
Compressive Strength (28 days) ASTM C 109 > 65 N/mm²
Flexural Strength (28 days) ASTM C 580, ASTM C 293 > 10 N/mm²
Tensile Strength ASTM C 469, ASTM C 307 > 4 N/mm²
E Modulus (Modulus of Elasticity) 35,500 N/mm²
Water Penetration BS EN 12390 Pt 8 2000 < 5 mm
Chloride Content (% by mass) EN 1504 – 3 2005 Low
Slant Shear Bond Strength ASTM C882 > 9 N/mm²
Compliance ASTM C 1107- 02 Type C Complies

MICRO CONCRETE is supplied in powder form. Mix water to the powder in the ratio of 0.18 approximately to get the desired consistency and pour in the forms. Care should be taken to see that the gaps in the shutter forms are effectively sealed with masking tape or cotton to ensure that the material does not run out of shutters joints. Where the repaired surface needs to be plastered, hack the surface immediately after removal of the shutters.

  • High Early Strength: Reaches the strength of main structural member in 24 hours only.
  • Non Shrink: It does not produce shrinkage cracks along the line of old and built-up concrete section.
  • Good Bond: It achieves an excellent bond with parent concrete when used along with Skofbond TM SAC M35.
  • Impermeable: The repaired part of structural member become impermeable to water and protects the reinforcements from any further corrosion.
  • Chemical Structure: MICRO CONCRETE does not require elaborate curing. Sprinkling of water for two days is enough, however water curing is advisable for seven days.

Available in 10kg Pouch, 25kg Bag HD+PP, 50kg Bag HD+PP

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