Description

A structural R4-class, rapid-setting, shrinkagecompensated, thixotropic, fibre-reinforced, cementitious mortar, applied in a single layer from 3 to 40 mm thick, for repairing and smoothing concrete.

Application

• Rapid repair work on deteriorated concrete beams, pillars, buffer walls, cornices, edges of balconies and structural members and elements that require the use of mortar with high mechanical performance characteristics.
• Quickly smoothing over surface defects in cast concrete, such as deep gravel clusters, spacer holes, second pours, etc. before painting the surface.
• Repairs and structural strengthening of concrete.
• Repairing precast concrete members and elements.
• Repairs to concrete damaged by rusty reinforcing bars due to carbonation.

Benefits

• Hardens without shrinking and is characterised by its excellent adhesion to concrete substrates.
• Excellent adhesion to both old concrete (= 2 MPa), if wetted beforehand with water, and to steel reinforcement, especially when treated with Mapefer or Mapefer 1K anti-corrosion and re-alkalising cementitious mortar, certified EN 1504-7 “Corrosion protection of reinforcement”;
• High dimensional stability and, therefore, low risk of cracking and crazing during both the plastic phase and when hardened;
• Thermal compatibility to freeze/thaw cycles, measured as adhesion according to EN 1542;
• High resistance to carbonation;
• Impermeable to water.