Material Selection and control : Coarse Aggregates
Specific Gravity and moisture absorption
Needed for yield calculations in mix-design, Low absorption is better, for high absorption pre-wet the aggregates
Shape ( Flakiness/Elongation )
Values for total agg. should not exceed 30-35%, for poor...
Ensure the standard Slump Cone and associated equipment are clean before test and free from hardened concrete.
Wet the Slump Cone and drain away the superfluous water.
Request the mixer or concrete truck to well mix the concrete for additional 5 minutes.
Place the Slump Cone on...