Abstract： AS/NZS 1141.7:2014 pdf download.Methods for sampling and testing aggregates Method 7: Apparent particle density of filler. The test procedure shall he earned out on duplicate test portions as follows: (a) Using the procedure prescribed in A...

AS/NZS 1141.7:2014 pdf download.Methods for sampling and testing aggregates Method 7: Apparent particle density of filler.

The test procedure shall he earned out on duplicate test portions as follows:

(a) Using the procedure prescribed in Appendix A, Steps (a) to (g). weigh the density bottle and stopper when filled with the

dilatometric liquid and record the mass (rn).

(lit Dry the test portion of filler for 4 h in the oven at a temperature of 105°C to 110°C and cool in the desiccator to room

temperature.

(c) Clean and dry the bottle and add the filler through the funnel until the bottle is approximately one-third full. Weigh the

bottle plus contents and stopper and record the mass (,n4)

(d) Add sufficient dilatometric liquid to cover the filler and half fill the bottle. Release entrapped air by giving thc bottlc and its contents a few light taps or gentle swirls on the bench and then subjecting the bottle and contents to reduced pressure

(approximately —90 kPa gauge pressure) in a vacuum vessel for at least S mm until no further bubbles appear.

(e) Add further dilagometric liquid to fill the bottle completely then immerse the bottle in the water bath at 25 ±01°C. The

level of water in the bath shall come to within approximately 5 mm of the top of the density bottle.

(f) After 30 mm. insert the stopper carefully so that no bubbles arc trapped in the neck of the bottle and the excess liquid is expelled through the capillary in the stopper.

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