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J-CRIB Pumpable Crib

J-CRIB Support Capacity
J-CRIBLaboratoryResults
J-CRIBTrailerMounted
JCribImage1
JCRIBInstallation
JCRIBInstallation2
J-CRIB Support Capacity
J-CRIBLaboratoryResults
J-CRIBTrailerMounted
JCribImage1
JCRIBInstallation
JCRIBInstallation2

J-CRIB® is a specialized pumpable cement and containment bag that replaces conventional timber cribs in longwall tailgates and bleeder headings. The state-of-the-art mixing and pumping system, together with rapid gelling characteristics of the J-CRIB material ensure simple and fast installation. The rapid strength gain provides early resistance to mine roof convergence and bed separation. J-CRIB is a two part system consisting of Part A and Part B, which when mixed together rapidly react to produce a load bearing mine roof support. J-CRIB (Part A) is a noncombustible grey powder that forms an easy-to-pump slurry when mixed with water. J-CRIB (Part B) is a non-combustible low viscosity easy to pump liquid accelerator. When mixed together, they gel in less than 30 seconds, allowing the top of the crib to be pressurized against a stiff base.

Advantages:

• High-efficiency mixing and pumping equipment
• High yield, approximately 60% by water volume
• Long distance pumping, up to 15,000' (4572 m)
• Long pumping life, minimum 12 hours
• Consistent performance with pressurization of bags ensuring good contact with mine roof and even loadbearing capacity
• Rapid gelling allows bags to be filled completely without additional form work

 

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