APPARATUS
Density Apparatus with Base Plate
The density apparatus shall consist of a 4-L (1-gal) jar and a detachable appliance consisting a cylinder valve with an orifice 12.7mm (1/2 in.) diameter and having a small funnel connecting to a standard G mason jar top on one end and a large funnel on the other end. The valve shall have stops o prevent rotating the valve past the completely open or completely closed positions. The base plate shall be made of metal and sufficient rigid. The plate shall have a flanged center hole to receive the large funnel. The apparatus shall conform to the requirements shown in Figure 1. The apparatus described here represents a design that has proven satisfactory. Other apparatus of similar proportions will perform equally well so long as the basic principles of the sand-volume determination are observed. The base plate is required for calibrations and testing.
Calibration Container
A sturdy cylindrical container of known
volume (VC). The container shall be dimensionally approximate to the largest
test hole that will be dug. The Container shall be calibrated according to T
19M/T 19.
Sand
Any clean,
dry, free-flowing, uncommented sand having few, if any, particles passing the
0.075-mm or retained on the 2.0-mm sieve. In selecting a sand for use, several
bulk density determinations should be made using the same representative sample
for each determination. To be acceptable, the sand shall not have a variation
in bulk density greater than 1 percent.
Balances
A balance conforming to the requirements of M
231, Class G 20. Also, a balance conforming to the requirements of M 231, Class
G2.
Drying Equipment
Stove or oven or other suitable equipment for
drying moisture content samples.
Miscellaneous Equipment
Small pick, chisels, or spoons for digging
test hole; 254mm frying pan or any suitable container for retaining the density
sample, moisture sample ; buckets with lids, canvas sacks , or other suitable
containers for retaining the density sample, moisture sample, or density sand,
respectively; small paintbrush, slide rule and notebook.
