Annular Space Grouting

Annular Space Grouting

Annular Space Grouting is a type of Void Grouting that consists of filling the annular space between an inner “host” pipe and an outer “liner” pipe in cases where the host pipe has deteriorated and requires repair/lining.  The grouting process requires access at each end of the pipe or access at regular intervals for relatively long pipe alignments.  Grouting is normally performed from the lower end of the pipe with neat cement or cellular concrete grout being pumped “uphill”.