Concrete Repair

Builda Rep S52

High Strength Thixotropic, Fiber Reinforced Repair Mortar

Anti-sag shrinkage compensated cementitious repair mortar for vertical and overhead concrete repairs.

  • Shrinkage compensating repair mortar
  • Suitable for vertical and overhead application
  • Excellent adhesion to host concrete
  • Low permeability against chlorides and salts

Surface Preparation

Concrete should be sound, clean and uncontaminated. Cut damaged areas square and remove all dust, laitance and unsound material

Rebar Priming

Clean exposed reinforcement thoroughly and apply Zinc Rich Primer over cleaned steel

Concrete Priming

Generally no primer required. Soak substrate with water to saturated surface dry condition before repair

Mixing

Mix the powder with clean water to form an easily workable thixotropic mortar

Application

Apply to vertical or overhead repairs in recommended layer thicknesses and consolidate firmly

  • Repair of degraded reinforced concrete
  • Edges of beams and columns
  • Bridges and channels
  • Terraces, balcony rises and expansion joint repairs

Property
Value
Applicable standards
ASTM C579, C580, C469, EN 1015-17
Physical state
Powder
Color
Cement Grey
Required water per 20kg bag
Approx. 2.5-3.5 L
Wet density
2 Kg/Liter
Consistency of mix
Thixotropic paste
Application temperature
+5°C to +35°C
Workability @ 25°C
40-50 minutes
Layer thickness
Horizontal 10-100 mm / Vertical 10-50 mm / Overhead 10-25 mm
Compressive strength
7 days 45 N/mm2 / 28 days 62 N/mm2
Flexural strength
7 days 5 N/mm2 / 28 days 7.5 N/mm2
Modulus of elasticity @ 28 days
21000 N/mm2
Adhesion to concrete @ 28 days
1.8 N/mm2
Chloride ion content
0.03%
Drying shrinkage @ 28 days
< 500 micro strain