Development of Structural Concretes with Fly Ash Aggregates
- Angle of Inclination-30°, Revolution Speed-32 RPM
- Aggregate size – 5-20 mm
- Shape- Spherical
- Specific Gravity – 1.4-1.6
- Bulk Density (kg/m3)- 600-1000
- Water Absorption- 14-19%
- Density – 1700-1900kg/m3
- Light weight Concretes
- Structural grade concrete up to M40
Durability
- FAAs intact after 2 years, pH sufficient for corrosion resistance
- Increased Acid resistance
- RCPT-Moderate-Very low
- Corrosion rate & Resistivity – Improved presence of fly ash
Achievements
- Technology for the production of FAAs
- Alternative to natural gravel/crushed stone aggregate
- Usable upto M40 grade structural concretes
- Light weight Concretes
- Modified Bolomey Equation-Comp.Strength.
- fc = K* [cw-0.5](1-a)
Conservation of natural resources & ecological balance