Product Data Sheet Show all documents

SikaCem® Gunit-103

Microsilica Based Gunite Mortar

SikaCem® Gunit-103 is a ready to use , one component cementitous polymer modified silica fume based micro concrete, shotcrete gunite mortar, suitable for use in hot and tropical climatic conditions.

  • Ready- for-use, one-component material.
  • Superior workability.
  • Can be trowelled and screeded after application.
  • Rapid strength development.
  • Outstanding resisitance to attack of frost and de-icing salts.
  • Very high density.
  • Highly effective carbonation inhibitor.
  • Excellent adhesion to substrate.
  • Coat thickness up to 150 mm in a single application.
  • Extremely economical in use, only 5% rebound.
  • Excellent sulphate resistance.
Product Data Sheet Show all documents

Usage

A high perfromance mortar for dry-spray application to concrete, stone and mortar substrates. Suitable for new construction, repairs and maintenance work. Typical applications include:
  • Construction of power stations and penstocks.
  • Tunnels and galleries.
  • Bridges.
  • Industrial and residential buildins.
  • High strength mortar
  • Levelling of large area.
  • Concrete repair work.
 

    Advantages

    • Ready- for-use, one-component material.
    • Superior workability.
    • Can be trowelled and screeded after application.
    • Rapid strength development.
    • Outstanding resisitance to attack of frost and de-icing salts.
    • Very high density.
    • Highly effective carbonation inhibitor.
    • Excellent adhesion to substrate.
    • Coat thickness up to 150 mm in a single application.
    • Extremely economical in use, only 5% rebound.
    • Excellent sulphate resistance.

    Packaging

    30kg paper bag

    Product Details

    Product Information

    Shelf life

    12 months from date of production if stored properly in unopened original packing.

    Storage conditions

    SikaCem® Gunit-103 must be stored in dry conditions, protected from direct sunlight.

    Maximum grain size

    0- 4 mm

    Density

    2.2 kg/l
    Technical Information

    Compressive strength

    According to EN 196-1

    Age of testing

    Compressive strength

    7 days

    35 MPa

    28 days

    55 MPa

     

    Application

    Application Information

    Mixing ratio

    2.25 - 2.55  L water per one pack 30 kg powder

    Layer thickness

    • Minimum application thickness per coat : 10 mm
    • Maximum application thickness per coat : 150 mm
    Consumption

    Consumption

    The rate of coverage depends on the substrate condition and the location of the area to be sprayed ( overhead or vertical) and the thickness required of the applied layer. 
    As an approximate consumption: 22-24 kg/m2/10 mm thickness.
    Application steps

    MIXING

    SikaCem® Gunit-103 is fed into the dry process spraying machine which should be of suitable size for the repair areas to reduce wastage and rebound. The amount of water added is controlled by the nozzleman at the nozzle and should be sufficient to prevent slump and dust. Rebound will be increased with unsuitably sized spraying machine, compressor, nozzle type, dry mixture and thin layers.

    APPLICATION

    SikaCem® Gunit-103 shall be placed onto the pre-wetted substrate between the minimum and maximum layer thickness without the formation of voids and loose rebound material.

    Where layers are to be built up to prevent sagging or slumping, each layer should be allowed to stiffen before applying subsequent layers (wet on wet).

    CURING TREATMENT

    It is essential to cure the repair mortar immediately after application for a minimum of 3 days to ensure full cement hydration and to minimise cracking. Use polyethlene sheet taped down at the edges or other approved methods. Curing compounds shall not be used when they adversely affect subsequently applied products and systems.

    CLEANING OF EQUIPMENT

    Clean all tools and the application equipment with water immediately after use. Hardened/cured material can only be mechanically removed.

     

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