<p>A pipe construction system which utilises a multiplicity of arcuate pipe segments (11, 12) to form a pipe section (10) and which sections are assembled together to form a length of pipe. Each segment (11, 12) has two longitudinal edges (13) of increased radial thickness and having a groove (14) formed in the circumferential direction whereby an interlocking and sealing member (15) may be located in the aligned grooves (14) of two adjacent segments (11, 12). One end of a pipe section (10) assembled from the segments defines a socket (22) for receiving a spigot (23) defined at the other end of a like section. The spigot end of each segment has a pocket (25) formed along said edge (13) but within the thickness of the major area of the segment, which pocket (25) mates with a corresponding pocket (25) of an adjacent segment whereby sealant may be disposed in the mating pockets.</p>
