Applications of Industrial Waste(s) Sub-topics • Application(s) of Industrial Waste(s)/By-products • Fly ash • Silica Fumes • Rubber tiers • Glass (Aggregates) • Dredged material • Need for Characterization (of geomaterials & wastes )
Major Issues (for application of Industrial waste as a geomaterial) Identification of the application Key property required for the application Environmental sustainability Laboratory (testing) protocols Modeling of engineering behavior Constructability and field performance Long-term performance Regulatory constraints
POZZOLANA • Volcanic Ash from Pozzuoli in Italy • Surkhi Man-made Volcano Natural Volcano
Soil Stabilization using Fly ash Laboratory Studies In situ studies on Pavement Base & Sub-bases Swell-pressure and % swell decreases LL, PL, PI, decrease Plasticity modification & hence better compaction CBR modification Fly ash cement mix
Growing Use of Fly Ash Based Cement In India • Has grown significantly over last 6 to 7 years. • High level of acceptance among consultants, architects & engineers. • Accepted by national IS Codes IS 456-2000 for design and construction of concrete. (< 35%). • By reducing consumption of OPC, the rate of depletion of mineral resources required for production of cement can be reduced.
High Volume Fly ash Concrete (HVAC) for Infrastructure development • High volumes of fly ash • Low water content • Low Portland cement content Applications: • Power (Hydro, Thermal & Nuclear) sector. • Dams, Barrages & Irrigation Projects. • Marine Projects (Underwater Concreting). • Environmental Engineering Projects.
Recommend
More recommend
