Shotcrete Accelerator

Concrete Admixture – Alkali-Free Accelerator for Shotcrete (MNC-Q2)

    Product Name: Alkali-Free Accelerator for Shotcrete (MNC-Q2)
    Type: MNC-Q2
    Package: 250kg/drum

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      Alkali-Free Accelerator for Shotcrete

      (MNC-Q2)

      Description

      MNC-Q2 is a high-performance alkali-free concrete accelerator for sprayed concrete. It is a liquid form which dosage can be varied as according to the designed setting and hardening times.

      Application

      MNC-Q2 is suitable for all applications, where high and early strength, good final strength and extremely thick layers are required.

      • Temporary and permanent rock support in tunnels.
      • Rock support in mining.
      • Poor ground conditions.
      • Tunnel linings, cement ground injection and foam concrete which need acceleration of cementitious grouts.

      Features

      • Quick setting property allowed with rapid work progress and construct thick sprayed concrete linings via layered application during one construction sequence. Initial setting time is 2 min to 5 min, final setting time is 3min to 10min.
      • Good adhesiveness, one spray layer can be 8 mm to 150mm.
      • High strength and concrete performance durability.
      • Easy handling as well as facilitating accurate addition to concrete.
      • Very low dust production with good working environment.
      • Lower handling cost.

      Technical Data Sheet

      Items Specification
      Form Liquid
      Visual Appearance Beige
      Density (+20℃) 1.43 ±0.03g/ml
      pH value (1:1 water solution) 2.6±0.5
      Viscosity ＞400mPa.s
      Thermal stability +5℃ to +35℃
      Chloride Free
      Recommended addition rate: 3% to 8%.of cement quantity

      Storage

      MNC-Q2 kept in closed containers which made of plastic, glass fiber or stainless steel.

      The container is 250kg per drum. The shelf life is 8 months.