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YAPIFINEConstruction Systems

Coarse Structural Repair Mortar – R4

YAPIFINE MEND® 20

Cement based, fibre reinforced, single component, waterproof, structural repair and finishing mortar with coarse aggregate and chemical additives for higher product performance and workability

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Technical profile

Material data,
at a glance.

Key properties and declared technical characteristics for product selection and initial evaluation.

Appearance
Grey powder Elastic Modulus > 20 Gpa
Pot Life
min. 45 minutes Capillary Water Absorption ≤ 0.5 kg/(m2.h0.5)
Application Temperature
Between +5°C and +30°C Compressive Strength (28 days) ≥ 45 N/mm²
Service Temperature
-30°C /+80°C Flexural Strength (28 days) ≥ 5 N/mm²
Application Thickness
max. 40 mm per layer Adhesive Strength (28 days) ≥ 2 N/mm²
Time Before Use
1 day Chloride Ion Content ≤ 0.05 %
Restrained Shrinkage / Expansion
≥ 2 N/mm² Reaction to Fire A1

Performance

Product advantages

  • Easy to apply.
  • Suitable for upside down applications.
  • Not affected by humidity due to not having any metal content.
  • Waterproof.
  • Resistant to sulphate and chlorine.
  • Does not cause corrosion.
  • Resistant to carbonation.
  • Can be used in contact with reinforcement due to chloride-free content.
  • Does not shrink.
  • Ensures high compressive strength.
  • Does not cause cracking and dusting.
  • Resistant to freeze-thaw cycle.

Application range

Areas of use

  • Structural repairs
  • Repair of surfaces of gas concrete, exposed concrete, prefabricated concrete, briquette, brick etc.
  • Floorings for special coverings with light or medium traffic load and surface repairs
  • Any kind of industrial, reinforced concrete building
  • Filling tension gaps (rod clearances/tie-rod holes) and core spaces in concrete buildings
  • Repairing concrete that is obtained via moulding during any kind of construction work and repairment of cracks
  • Repair, restoring and reinforcing projects
  • Repairing surface disorders of 10–40 mm thick at once

Use guidance

From selection
to application.

01

Application

Applied to the surface in the appropriate width with the help of a trowel. After the application the surface needs to be kept damp for the next 24 hours. Applications should be done layer by layer where the application thickness is larger than 40 mm and between each layer a minimum of 3 hours should be waited.

Specification & supply

Standards, formats
and handling.

02

Packaging

  • 25 kg kraft bag
04

Storage

The shelf life of the product is 12 months when it is stored on wooden pallets in a cool, dry and moisture free environment with an ambient temperature between +10°C and +25°C.