A method for pipeline rehabilitation grout coverage inspection according
to embodiments of the present invention includes installing a tubular
liner within a pipeline by filling a space between the tubular liner and
the pipeline with grout, creating a heat transfer across the tubular
liner, and observing an inside of the tubular liner with an infrared
camera to detect an infrared signal differential between areas of the
tubular liner in contact with the grout and areas of the tubular liner
not in contact with the grout. Observing and inspecting the inside of the
tubular liner may be accomplished simultaneously with rounding of the
liner and smoothing of the grout by harnessing an infrared camera to a
swab and advancing the swab with chilled compressed air to cool the
liner, according to embodiments of the present invention.