The Pozzolan range of centraly and externally placed joint fix PVC waterstops are designed to provide an integral sealing network for joints in water retaining, and water excluding concrete structures. The range is supplied as straight lengths of 25 m in coils with separate intersection pieces to be joined on site.Where necessary factory made fabrications can be supplied to simplified site assembly of the complete waterstop network.Pozzolan waterstops are designed to provide the sealing of movement and construction joints which occur in water retaining  types of concrete structure such as reservoirs, water towers, sewage tanks, dams, culverts, canals, spillways, swimming pools and bounded areas surrounding liquid retaining tanks, as well as in water excluding concrete structures such as basement structures and underground  can parks,tunnels and subways,abutments and retaining walls as well as on roof decks and podium areas.