Angularity Number of Coarse Aggregate

Step 1: Weighing of metal cylinder

• Click on the metal cylinder to place it on the weighing balance.
procedure

• Click TARE button to zero the reading
procedure

• Click on the metal cylinder to remove it from the weighing balance .
procedure

• Click NEXT to proceed

Step 2: Filling the cylinder with water

• Click on beaker to pour water into the metal cylinder carefully.
procedure

• Click NEXT to proceed

Step 3: Measuring the volume of water

• Click on cylinder to note down the volume of water filled inside.
procedure

• Click NEXT to proceed

Step 4: Weighing of the tray

• Click on tray to place it on the balance.
procedure

• Click TARE button again to zero the balance.
procedure

• Click NEXT to proceed

Step 5 : Take sufficient quantity of aggregates

• Click on tray to take sufficient quantity of aggregates and weigh them.
procedure

• Click NEXT to proceed

Step 6: Assemble the seives

• Click on "assemble" to arrange sieves in descending order with largest aperture at top and pan at bottom.
procedure

• Click NEXT to proceed

Step 7: Put the aggregates in the sieve stack

Click on tray to put the weighed aggregates on the sieve stack.
procedure

• Click NEXT to proceed

Step 8: Procedure for Conducting Sieve Analysis

• Click on lid to cover the sieve stack.
procedure

• Click on the sieve stack to place it on shaker.
procedure

• Click on the green button to start the machine.
procedure

• Click on the lid to remove the sieve from the shaker.
procedure

• Click on the sieve to open it and record aggregates from each sieve.
procedure

• Click NEXT to proceed

Step 9: Aggregate Sample Preparation Procedure

• Click on tray to fill aggregate in cylinder in three layers.
procedure

• compact each layer with 100 blows using tamping rod by clicking on it and remove excess of the material .
procedure

• Repeat this process three times by clicking on the aggregates tray and rod respectively .

• Click NEXT to proceed

Step 10: Weighing of aggregates

• Click on cylinder to weigh the aggregates along with the cylinder.
procedure

• Click NEXT to proceed

Step 11: Calculations

Calculate the average weight of aggregates.