MAPEGROUT LM2K: Low-Modulus, Fiber-Reinforced Concrete Repair Mortar with Corrosion Protection
What is MAPEGROUT LM2K?
MAPEGROUT LM2K is a specialized two-component, fiber-reinforced concrete repair mortar with a low modulus of elasticity. Thanks to the organic corrosion inhibitor incorporated into its formulation, it not only repairs damaged concrete surfaces but also helps protect reinforcing steel against corrosion.
Its cement-based composition and thixotropic consistency allow easy application on vertical and overhead surfaces. The low elastic modulus enables the mortar to accommodate the natural movements of concrete, reducing the risk of cracking while providing a durable and reliable repair solution. It is particularly suitable for projects where reinforcement protection is a critical requirement.
Technical Specifications
- Type: Two-component system (A: cement-based powder, B: liquid polymer)
- Elastic Modulus: Low – adapts to structural movements
- Reinforcement: Fiber-reinforced for improved crack resistance
- Corrosion Protection: Contains organic corrosion inhibitors
- Consistency: Thixotropic – non-sag on vertical surfaces
- Application Thickness: 5–35 mm per layer
Advantages
Active Corrosion Protection
The organic inhibitor helps delay reinforcement corrosion and extends the service life of reinforced concrete structures.
Compatible Elasticity
Exhibits movement characteristics similar to concrete, helping to reduce stress concentrations.
Fiber Reinforcement
Improves crack-bridging capability and impact resistance.
High Adhesion
Provides strong and durable bonding to concrete substrates.
Thixotropic Consistency
Can be applied to vertical and overhead surfaces without sagging.
Two-Component System
Delivers optimized mechanical and rheological performance.
Applications
- Restoration of reinforced concrete structures
- Repair of columns, beams, retaining walls, and slabs
- Coastal and industrial environments with high corrosion risk
- Overhead and vertical concrete repairs
- Structural strengthening and rehabilitation projects
- Reinforced concrete systems where reinforcement protection is a priority
Application Instructions
The substrate must be thoroughly cleaned of loose particles, dust, oil, and any contaminants that may impair adhesion. The surface should be damp but free from standing water.
Component A and Component B should be mixed according to the ratios specified in the technical data sheet using a low-speed mixer until a homogeneous, thixotropic consistency is achieved. The prepared mortar can then be applied using a trowel or spatula. Appropriate curing procedures should be carried out after application.
Long-Term Protection and Reliable Repairs with MAPEGROUT LM2K
MAPEGROUT LM2K is an advanced repair system that combines structural repair and corrosion protection in a single product. Particularly in reinforced concrete structures exposed to aggressive environmental conditions, it helps preserve both structural integrity and reinforcement durability, ensuring long-term performance.
Frequently Asked Questions (FAQ)
How does it protect against corrosion?
The organic corrosion inhibitor in its formulation helps slow down the corrosion process of reinforcing steel and provides long-lasting protection.
Can it be applied on vertical surfaces?
Yes. Its thixotropic consistency allows application on vertical and overhead surfaces without sagging.
How should the components be prepared?
Components A and B must be mixed according to the manufacturer's recommended ratios until a homogeneous consistency is obtained.
In which projects is it recommended?
It is particularly recommended for reinforced concrete structures exposed to outdoor conditions and environments where reinforcement corrosion is a significant concern.