RELATED MATERIALS
- MEGACRET-40: High-strength, fibre‑reinforced repairing mortar.
- DUROCRET: Polymer-modified cement mortar.
- RAPICRET: Fast-setting patching mortar.
- PLANFIX: Polymer-modified cement putty.
- PLANFIX-FINE: Polymer-modified cement putty, extra fine-grained.
I. NATURE OF THE PROBLEM – REQUIREMENTS
Surface damage to concrete elements can be caused by insufficient vibration during casting, impacts or other mechanical actions. Such damages include spalling, blisters, cavities and broken corners. They affect the appearance of the element, may reduce its durability and create conditions for corrosion of steel reinforcement. Repair materials must restore the geometry, adhere well to the substrate and resist shrinkage and mechanical stresses.
II. SOLUTION
For repairs of 5–40 mm thickness use MEGACRET-40 high-strength fibre‑reinforced mortar. For repairs of 2–20 mm thickness use DUROCRET polymer-modified mortar. For small or urgent repairs use RAPICRET fast-setting mortar (2–40 mm). For smoothing thin layers and fine finishing use PLANFIX (up to 3 mm) or PLANFIX-FINE. For better adhesion on dense or smooth substrates mix the mortars with a solution of water and ADIPLAST polymer (ratio 1:5) or prime with UNI-PRIMER.
III. APPLICATION
1. Remove all loose and damaged concrete using a chisel or other mechanical means until sound material is reached. Cut the edges vertically to at least 1 cm depth to avoid feather edges and clean the surface thoroughly.
2. Pre‑wet the substrate without leaving standing water. If required, apply UNI‑PRIMER or mix the repair mortar’s mixing water with ADIPLAST polymer.
3. Prepare the repair mortar (MEGACRET‑40, DUROCRET or RAPICRET) by mixing it with the prescribed amount of water (and ADIPLAST) using a mechanical stirrer until a homogeneous, workable mortar is formed.
4. Apply the mortar with a trowel, pressing it firmly into the prepared area to ensure full contact and eliminate air voids. Build up the required thickness in layers if necessary and finish with a steel trowel to match adjacent surfaces.
5. For smoothing the surface after the mortar has set, apply PLANFIX or PLANFIX‑FINE putty with a putty knife to fill pores and obtain a uniform finish.
6. Protect the repaired area from rapid drying or frost and keep it moist for at least 48 hours.
IV. REMARKS
- The temperature during application must be between +5 °C and +35 °C.
- Do not apply under direct sun, strong wind, rain or frost.
- Maximum thickness per layer depends on the product; for thicker repairs apply multiple layers.
- Do not rework mortars that have started to set; prepare only as much material as can be used within the pot life.
- Wear gloves and goggles during mixing and application and follow the safety instructions.
- MEGACRET-40: High-strength, fibre‑reinforced repairing mortar.
- DUROCRET: Polymer-modified cement mortar.
- RAPICRET: Fast-setting patching mortar.
- PLANFIX: Polymer-modified cement putty.
- PLANFIX-FINE: Polymer-modified cement putty, extra fine-grained.
I. NATURE OF THE PROBLEM – REQUIREMENTS
Surface damage to concrete elements can be caused by insufficient vibration during casting, impacts or other mechanical actions. Such damages include spalling, blisters, cavities and broken corners. They affect the appearance of the element, may reduce its durability and create conditions for corrosion of steel reinforcement. Repair materials must restore the geometry, adhere well to the substrate and resist shrinkage and mechanical stresses.
II. SOLUTION
For repairs of 5–40 mm thickness use MEGACRET-40 high-strength fibre‑reinforced mortar. For repairs of 2–20 mm thickness use DUROCRET polymer-modified mortar. For small or urgent repairs use RAPICRET fast-setting mortar (2–40 mm). For smoothing thin layers and fine finishing use PLANFIX (up to 3 mm) or PLANFIX-FINE. For better adhesion on dense or smooth substrates mix the mortars with a solution of water and ADIPLAST polymer (ratio 1:5) or prime with UNI-PRIMER.
III. APPLICATION
1. Remove all loose and damaged concrete using a chisel or other mechanical means until sound material is reached. Cut the edges vertically to at least 1 cm depth to avoid feather edges and clean the surface thoroughly.
2. Pre‑wet the substrate without leaving standing water. If required, apply UNI‑PRIMER or mix the repair mortar’s mixing water with ADIPLAST polymer.
3. Prepare the repair mortar (MEGACRET‑40, DUROCRET or RAPICRET) by mixing it with the prescribed amount of water (and ADIPLAST) using a mechanical stirrer until a homogeneous, workable mortar is formed.
4. Apply the mortar with a trowel, pressing it firmly into the prepared area to ensure full contact and eliminate air voids. Build up the required thickness in layers if necessary and finish with a steel trowel to match adjacent surfaces.
5. For smoothing the surface after the mortar has set, apply PLANFIX or PLANFIX‑FINE putty with a putty knife to fill pores and obtain a uniform finish.
6. Protect the repaired area from rapid drying or frost and keep it moist for at least 48 hours.
IV. REMARKS
- The temperature during application must be between +5 °C and +35 °C.
- Do not apply under direct sun, strong wind, rain or frost.
- Maximum thickness per layer depends on the product; for thicker repairs apply multiple layers.
- Do not rework mortars that have started to set; prepare only as much material as can be used within the pot life.
- Wear gloves and goggles during mixing and application and follow the safety instructions.
