Tekpak® Pumpable Crib System has been specifically developed to provide enhanced standing and roof support in underground coal mining. Tekpak® is a two-part system consisting of Tekcem® and Tekbent®. Each component is a free flowing cementitious powder requiring only the addition of water in a suitable mixer to produce a consistent free flowing slurry. Each slurry has a 3 day pumping life. When mixed together the slurries react rapidly to provide a load bearing fill.
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|