Product Data Sheet Show all documents

SikaInject®-867

High yield thixotropic cable bolt grout

SikaInject®-867 is a thixotropic, high yield, and shrinkage compensated grout used for placement of cable and rock bolts in tunnels and underground mines

  • Highly pumpable; yet, exhibits rapid thixotropy
  • Can be applied through small-diameter grout tubes
  • Excellent strength development
  • Extended working time (~60 min at 20 °C)
  • Excellent bond to steel and surrounding strata
  • Restricted flow into surrounding strata
  • Enables the use of smaller drill holes
  • Eliminates the requirement for sealing of the collar and plate with cotton waste etc.
  • Economical to use
  • Enhances the safety of critical bolt and anchor installations
Product Data Sheet Show all documents

Usage

  • SikaInject®-867 is particularly suitable as a grout used for the encapsulation of roof bolts and cable anchors where the “top-down” grouting method is preferred.
  • SikaInject®-867 has been specially developed to give a high yield (volume) of grout without segregation or bleed whilst providing excellent compressive strengths.
     

    Advantages

    • Highly pumpable; yet, exhibits rapid thixotropy
    • Can be applied through small-diameter grout tubes
    • Excellent strength development
    • Extended working time (~60 min at 20 °C)
    • Excellent bond to steel and surrounding strata
    • Restricted flow into surrounding strata
    • Enables the use of smaller drill holes
    • Eliminates the requirement for sealing of the collar and plate with cotton waste etc.
    • Economical to use
    • Enhances the safety of critical bolt and anchor installations

    Packaging

    20 kg bag

    Product Details

    Product Information

    Shelf life

    12 months from the date of production

    Storage conditions

    Store properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +35 °C.

     
    Technical Information

    Compressive strength

    24 Hours

    7 Days

    28 Days

    6.0 litres water per 20kg

    ~ 30 MPa

    ~ 55 MPa

    ~ 65 MPa

    6.5 litres water per 20kg

    ~ 25 MPa

    ~ 50 MPa

    ~ 60 MPa

    7.0 litres water per 20kg

    ~ 23 MPa

    ~ 45 MPa

    ~ 55 MPa

    7.5 litres water per 20kg~ 20 MPa~ 40 MPa~ 50 MPa

    AS1478.2 Appendix A. restrained 50 mm cubes at 23°C, Age Typical compressive strength. Strength development depends on the amount of mixing water, ambient temperature, age and curing of the grout mixture. Actual results may vary.

    Application

    Consumption

    Yield

    Mixing 20 kg grout with 6.5L water = ~ 13L of grout mixture
    Application steps

    EQUIPMENT

    For best results, a high mechanical shear mixer or a paddle mixer should be used. The grout pump must have accurate water dosing capabilities.

    MIXING

    SikaInject®-867 is supplied ready to use; requiring only the addition of potable water.

    Fill the mixer with the correct amount of water that matches the number of SikaInject®-867 bags. As a guide, use 6.0 - 7.5L of water per 20 kg bag of SikaInject®-867 grout for a thixotropic mixture. The actual amount of water required will depend on the desired consistency of the grout mixture and the grout pump available. Do not exceed the amount of water recommended for obtaining thixotropic mixtures. Start the mixer after adding the required amount of water. Slowly add SikaInject®-867 grout powder. Continue mixing until a thick, creamy, no-lump consistency is obtained. Discard any grout mixture that has been left unattended for more than 60 minutes. Do not retemper.

    CLEANING OF EQUIPMENT

    As with all grouting operations, it is essential to systematically clean the pump and grout lines with clean water. This should be done immediately after completion of grouting operations. If the grouting operations delay for more than an hour, the batched grout mixture should be discarded, and the pump and grout lines cleaned.

     

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