Tekpak® Pumpable Crib System has been specifically developed to provide enhanced standing and roof support in underground coal mining and offers substantial benefits in terms of roof control, speed and ease of installation. Tekpak P is a two part chemical system consisting of Tekcem and Tekbent which when mixed together rapidly reacts to produce a load bearing crib. Tekcem is a non-combustible brown blended cement powder which forms an easy to pump slurry with water. Tekbent is a non-combustible low viscosity non setting liquid. Tekbent has an indefinite pumping life and Tekcem is pumpable for at least 24 hours.
The system provides a more productive means to install roof support in longwall mining operations, providing increased safety for operational personnel and more cost effective mine production.
|WATER : POWDER RATIO||GEL TIME @ 20°C||FRESH WET DENSITY KG/CUBIC METER||MAXIMUM PUMPING DISTANCE|
|2.5:1||10-12 Minutes||1220||5000 Meters|
|1 Day||2.5 MPa|
|7 Days||3.5 MPa|
|28 Days||5.5 MPa|