Benefil can fill any size of void. It is ideal for filling pipelines and conduits. Residual fluids are forced ahead and expelled. An abandoned pipeline can be filled completely, either uphill or downhill, even if only one end is accessible.
When used to fill the interstitial (annular) space formed by relining, the new ‘slipline’ will not collapse or float when being installed. Soil loss due to ‘infiltration’ can be corrected by filling resultant voids from above.