Density Apparatus with Base Plate

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.

Note 1- The Internal diameter of thecontainer shall be equal to or slightly less than the dimeter of the opening ofthe base plate used with the sand-cone. The 944cm3 and 2830-cm3 molds specifiedin T99 and T180 are suitable.

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.