Sub-topics Application(s) of Industrial Waste(s)/By-products Fly - - PowerPoint PPT Presentation

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

Applications:

• Power (Hydro, Thermal & Nuclear) sector.
• Dams, Barrages & Irrigation Projects.
• Marine Projects (Underwater Concreting).
• Environmental Engineering Projects.
• High volumes of fly ash
• Low water content
• Low Portland cement content