Leading the way bringing world class valued additive products to India, Sangiris proud to announce yet another innovative product in its varied portfolio. TRibSheets have T shaped Profiles projecting on a one surface of a PE/PPplastic sheet. The T Rib sheets when embedded within Concrete providesuperior grip. The barrier created by the Thermoplastic provides the bestprotection from Chemical attack in a variety of application whereas the baseConcrete provides the necessary mechanical strength THE NEED Organic sulphates and inorganic sulphides are present in the slimes of sewerage flows and form the total sulphides present in the sewerage. A fraction of dissolved hydrogen sulphide is released into the sewer atmosphere as a gas.A process of bacterial reduction occurs when the hydrogen sulphide in combination with the other gases, such as carbon dioxide, is progressively oxidised, reducing the Ph to the point where it splits off with water molecules to form sulphuricacid. The powerful inorganic sulphuric acid reacts with hydrated calcium silicates and lime in the cement structure and reduces it to a soft swelling paste.Conditions are optimal for this process of sulphide attack when there is high Biological Oxygen Demand, presence of sulphates (common in all water systems), higher ambeant temperatures (quickening the kinetics of breakdown and reduction), and long detention times (flat grades - low velocities). THE SOLULTION T- Lining is the installation of a flexible sheet liner with locking extensions in reinforced concrete pipe and auxiliary structures to effectively protect the exposed concrete surfaces from corrosion for long periods of time that can be measured in decades.T-Lining’s projecting, moulded-in T-ribs are designed to allow concrete to flow around them during casting, permanently locking the liner into place as an integral part of the concrete substrate.Because of SanGrip T Rib Liner Sheets '' unique combination of qualities viz., outstanding chemical, abrasion and general resistance to any other physical effects, it is recommended for a wide range of uses when protection against corrosion is necessary.There is no other better way to shield concrete other than T-Lining, which makes T-Lining a necessary precaution which should be incorporated during the project design stage.   Â