... tropical climates, Easy welding & installation, Lower water absorption unaffected by metal, salt and other chemicals. ... danger of cracks. These are engineered as water Tight Seals in poured concrete structures. Public Utilities ... Road Embankments, Concrete Roads, Tunnels,Water Tanks, Swimming Pools, Municipal Hydraulic Projects. Water Filtration Plants. Clarifies. Sewage Disposal Systemic ...