AS NZS 1141.17:2014 pdf free download – Methods for sampling and testing aggregates Method 17: Voids in dry compacted filler

AS NZS 1141.17:2014 pdf free download – Methods for sampling and testing aggregates Method 17: Voids in dry compacted filler.
(c) Pressing a linger onto the central hole in the plunger to prevent ejection of the tiller from the cylinder, insert the plunger and allow it to slide slowly onto the filler. Apply pressure to the plunger so as to form the tiller into a slightly compacted bed.
(d) Remove the plunger without disturbance of the filler, wipe excess filler from the plunger and sides of the cylinder, and clean the hole through the plunger if necessary.
(e) Clamp the base or otherwise firmly hold it on a firm level surface free from vibration or resilience. Reinsert the plunger and place the cylinder gently in position on the base.
(1) Raise the cylinder, with plunger in position, and allow it to fall freely through a vertical height of 101.5±0.25mm to the base. Repeat the process until 100 drops have been completed.
The plunger shall remain free to move in the cylinder throughout this operation, and to ensure this it shall he eased frequently by twisting it in the cylinder and, if necessary, removing it and wiping it clean of clogging tiller.
(g) After 100 impacts, if necessary gently lift the plunger, turn it, and place it back on the tiller bed so that the result can be read. Read the depth (D) of the compacted filler to 11w nearest 0.1 mm.
(h) Dismantle the apparatus without damaging the bed or filler, and wipe the outside of the apparatus clean of any adhering compacted filler.
(i) Remove the tiller forming the compacted bed and determine its mass (ni) to the nearest 0.01 g.
7 CALCULATIONS
The following shall he calculated:
(a) The percentage voids in each of the three test portions using the following equation.