Master Emaco® S 488 | MCT CHEMICALS | MASTER BUILDER SOLUTIONS

Description

USES
Master Emaco® S 488 is designed for the structural repair of concrete elements, including:

• Columns, piers, and cross beams of bridges
• Cooling towers, chimneys, and industrial structures
• Water treatment plants and sewer facilities, prior to coating
• Tunnels, pipes, outfalls, and other below-ground constructions
• Marine structures

CHARACTERISTICS / ADVANTAGES

• Easy to use; simply mix with water
• Thixotropic consistency allows for application without the need for a bonding primer
• Excellent workability for both trowel and spray applications
• Suitable for application on horizontal, vertical, and overhead surfaces, both indoors and outdoors
• Shrinkage-compensated to reduce the risk of cracking under dynamic loads in both fresh and hardened states
• High resistance to carbonation
• Excellent freeze/thaw and de-icing salt resistance

PRODUCT INFORMATION

• Packaging: Available in 25 kg paper bags, with larger packaging available upon request from local Sika distributors
• Shelf Life: 6 months when stored under recommended conditions
• Storage: Store in a cool, dry place, away from direct sunlight, on pallets, and protected from rain
• Appearance/Colour: Grey powder
• Maximum Grain Size: 2 mm
• Soluble Chloride Ion Content: ≤ 0.05% (EN 1015-17)

TECHNICAL INFORMATION

• Compressive Strength:
  • 1 day (at 21±2 °C): ≥ 17 MPa
  • 7 days (at 21±2 °C): ≥ 30 MPa
  • 28 days (at 21±2 °C): ≥ 50 MPa
• Modulus of Elasticity in Compression: ≥ 25,000 N/mm² (EN 13412)
• Tensile Strength in Flexure:
  • 28 days (at 21±2 °C): ≥ 7 N/mm² (EN 196-1)
• Pull-Out Resistance:
  • Adhesion to Concrete after 28 days: ≥ 2.0 MPa (EN 1542)
• Capillary Absorption: ≤ 0.5 kg·m-²·h⁻⁰.⁵ (EN 13057)
• Freeze-Thaw and De-Icing Salt Resistance:
  • Adhesion to Concrete after 50 Freeze-Thaw Cycles with Salt: ≥ 2.0 MPa (EN 13687-1)
• Carbonation Resistance: dk ≤ Reference Concrete (EN 13295)
• Reaction to Fire: Class A1 (EN 13501-1)

APPLICATION INFORMATION

• Fresh Mortar Density: Approx. 2.0 to 2.1 g/cm³
• Consumption: Approx. 1,850 kg of powder needed for 1 m³ of fresh mortar. A 25 kg bag yields approximately 13 to 13.5 l of mortar
• Layer Thickness: 6 to 40 mm per layer
• Product Temperature: +5 to +30 °C
• Ambient Air Temperature: +5 to +35 °C
• Mixing Ratio: 3.5 to 4.0 l of water per 25 kg bag
• Substrate Temperature: +5 to +35 °C
• Pot Life: Approx. 45 to 60 minutes (at 21±2°C and 60±10% relative humidity). Pot life is shortened by higher temperatures and extended by lower temperatures
• Curing Rate: Full cure is achieved after 28 days at 21±2 °C