Soil and Aggregrate Supplies

Range 0.995 to
1.038 S.G.
by .001 Divisions

Sedimentation methods based on laws of Stokes and Oden are used widely to characterize particle size distribution in the 1-100μm range. Time of sedimenta-tion relates to particle di-ameter, and determination of distribution of percent by weight vs. equivalent
diameter is possible by measurement of weight settled vs. time.

ACM-SA-1 is graduated to read in specific gravity at 68° F (20°C). The 280mm long hydrometers and the general methods are also useful for kaolins and clays (ASTM C 775) and for determination of particle size distributions of many other materials where absolute density has little variation among sample particles.

The method calls for hydrometer readings for up to a 24-hr period. A 1000ml sedimentation cylinder, or hydrometer jar, is required for each sample. For consistent results, temperature may be maintained in a constant temperature bath during this period. Cylinders are 18" (457mm) H x 2.5" (64mm) diameter. Samples are dispersed in sodium hexametaphosphate solution prior to sedimentation using a special stirring apparatus with special mixing paddle and dispersion cup.

Our sieves are one of the finest manufactured and meet all specs. The frames are made of brass and are drawn from one piece without a seam. Extended bottoms (skirts) are also seamless and they are matched to fit all frames, pans, or separator pans of the same diameter - for convenient stacking. The cloth is hand soldered onto the frame, the frame skirt, then spun over the cloth, and the circle of contact between cloth and the frame is smoothly filled with solder so no material is lost between cloth and frame. Nameplate shows sieve number, microns, and nominal openings (in both millimeters and inches).

Our sieves conform to the following specifications:

*ASTM-E11 * AASHTO-M92 NBS
*AN SZ23.1 * FS RRS-366B * CRD-C102

Affordable 8" sieve tester will hold 8 full-height sieves or 16 half-height sieves with lid and pan. Comes complete with a 15 minute timer and a 115 VAC 1/3 H.P. motor.

ACM-TL 6008 USA Standard Testing Sieve

ACM-TL 6012 USA Standard Testing Sieve

Note - On brass sieves #100 - #400:
Customers may upgrade to stainless steel for the same price as the brass.

DETERMINING YOUR DENSITY

Density Drive Samplers

The density drive sampler is designed to determine
in place density of soil. The sampler and tubes are
used to obtain relatively undisturbed soils. Made of
stainless steel, this sampler consists of a rod, handle
and hammer with and internal spring shock.

Specifications:
Drive head: 3" or 4" diameter

Hammer Assembly:
Plated steel with internal shock spring

Tube dimensions: 3" x 2.75", 4" x 5"

Weight: 3" = 22lbs, 4" = 23lbs

Drive Tubes:
3" 0.01 cu ft capacity, 4" 0.033 cu ft capacity

ACM-DS-3  3" Density Drive Sampler
ACM-DS-4  4" Density Drive Sampler
ACM-DS-3T  3" Density Tube
ACM-DS-4T  4" Density Tube

Density Plate

12x12" (305x305mm)

The sand cone density test is an inexpensive method of determining in-place density of soils having maximum particle sizes up to 2" (51mm) using test hole volumes of approximately 0.1ft3 (2.8 liters).

Basic Model ACM-HM-100 apparatus consists of 1-gal. (3.8
liter) threaded plastic jar with detachable brass double
cone fitting. Fitting is threaded on one end, flanged to
6-1/2” (165mm) on the other, with a brass cylindrical valve
of 1/2” (12.7mm) diam. orifice between ends. Valve has
stops to prevent rotating past completely open or closed
positions.

Model ACM-HM-104 Density Plate is 12x12" (305x305mm)
aluminum alloy with 1/2" (12.7mm) high edge walls to
contain soil sample that is dug using 6-1/2" (165mm)
center hole of plate as a guide. After test hole is prepared,
flange of cone fits plate opening for filling hole with
special Density Sand.

Density Sand is clean, dry, uniform, uncemented, durable,
and free flowing. Few particles pass No. 200 (75μm) or are
retained on No. 10 (2.00mm) sieves. Bulk density varies
less than 1%. Packing bag is heavy and reinforced.

ACM-HM-104  6 lb, 0.1 Cu. Ft

Sand Cone Density Apparatus

For 2" (51mm) to Sand Sizes

Patented combination of adjustable chutes and gate release hoppers assures top accuracy for mixing and reducing gross samples to representative smaller test quantities. Universal Splitters are convenient, space saving, and cost-effective. A single model serves the purpose of two or more conventional splitters. Since the hoppers have a gate release, only the included sample collecting pans are
necessary for proper use; but extras are available. This model has a simple; inexpensive Adapter Kit to convert standard 45° chutes to 60 when necessary for flow ability or to meet specifications (recommended for coal and coke). This model has heavy-gauge painted steel, which has been forced air-dried.

The Universal chute section is comprised of a set of aluminum bars of precise width that pivot about a rod through their lower ends. Top of bar ends are flipped to alternate sides to form desired width chutes, as determined by number and width of bars grouped on each side. Groupings that result in an equal number of chutes to
either side may be used (See table of options for each model). Once set, bars are held tightly together via wing nuts on threaded ends of the pivot rod.

Superior durability sets this compact splitter apart from conventional portable models. Lightweight with ample hopper capacity, the ACMSP- 2 has wide appeal for floor or bench use. A 60° Kit is available.

Dimensions: 22 x 14-1/2 x 20 1/2
Hopper / Pans Capacity: 0.55 ft(cubed), 15.6 liters
Chute Slope: 45 degrees
Chute Bar Width, In: 1⁄2
Number of Chute Bars: 36

ACM-SP-2
Gilson Universal Porta-Splitte

25ml Capacity

The ACM-SG-25 is used for determining specific gravity
of pigment samples. Conical-shaped body has side tube
with vented cap and a capacity of 10ml. Thermometer
has range of 14-37°C in 0.2°C increments.

ACM-SG-25
Pycnometer Bottle with Thermometer