This simple test is widely used for screening to determine possible presence of organic compounds in fine aggregates. Samples are shaken in a special graduated bottle with a 3% sodium hydroxide solution, then allowed to stand for 24 hours. If the resulting color of the liquid above the test sample is darker than a reference standard color, organic compounds may be present and further testing should be done before approval.
The set includes six (6) graduated 8-oz colorless glass Impurities Test Bottles, a 1 lb bottle of Sodium Hydroxide Pellets, and a Color Reference Chart.
Extra Sodium Hydroxide 1 lb bottle (HM-816)
9101 Proportional Caliper Device
Use to determine the percentage of flat particles, elongated particles, or both flat & elongated particles in coarse aggregates. Steel construction for strength & durability, plated for corrosion resistance. 6" x 16" base plate with four rubber feet for stability, and for convenience in tabletop testing. Ratio desired is obtained by selecting one of four adjustable positions: 2 = 1:2; 3 = 1:3; 4 = 1:4; or 5 = 1:5. Meets ASTM D4791.
H-1684 Flakiness Gauge for Classification of Aggregate Particles
For determining flakiness index. Particle is flaky when its thickness (smallest dimension) is less than 0.6 of the mid-size of the sieve fraction. Gauge has seven labeled slots for rapid hand trying of particles from each of the seven sieve cuts. The mass of all flaky particles (passing appropriate slots) as percent of the sample is the flakiness index.
H-1682 Elongation Index for Classification of Aggregate Particles
For determining elongation index. Particle is elongated when its length (longest dimension) is more than 1.8 of the midsize of the sieve fraction. Aggregate to be classified is separated into seven sieve fractions from 63 to 6.3mm, and each fraction is examined separately. Six labeled openings between pairs of metal pins measure particle from each of the six sieve cuts below 50mm. The mass of all elongated particles (failing to pass between pins) as percent of the sample is the elongation index.
9102 Void Content Apparatus Fine Aggregate
Use to determine the uncompacted void content of a fine aggregate sample. Indicates the angularity, sphericality, and workability of fine aggregate in a mixture. Includes 100 ml brass cylindrical measure, funnel assembly, funnel stand, and glass plate for calibration. Meets ASTM C1252, AASHTO TP33.
SG-42 Void Content Apparatus Coarse Aggregate
Used to determine the void content of uncompacted coarse aggregates used in HMA applications. When used on aggregates of a known size, the void content provides the user with an indication of the angularity, sphericity and surface texture as compared to other course aggregates of the same grading. In operation, the aggregate is allowed to free-fall 115mm from the funnel bottom into a 154mm diameter by 160mm high cylindrical measure. The excess heaped aggregate is struck of using the included bar, the mass is measured, and the void content is computed. The apparatus consists of a stainless steel hopper, stand, measure and strike-off bar and a 170mm square glass plate for calibration of the measure. Meets AASHTO TP56.
Sand Equivalent Test Kit
SEA-100 comes with Case SEA-99 without Case
The Sand Equivalent Test indicates the relative portion of undesirable clay-like fines and dusts that occur in granular soils and fine aggregates passing the No. 4 sieve. The sample to be tested is placed in special solution of calcium chloride, formaldehyde, and glycerine. After shaking the cylinder, it is allowed to stand for a 20-minute sedimentation period. Readings are then taken on the cylinder scale for the level of the top of the clay suspension, and for the sand level. The "Sand Equivalent" is the sand reading divided by the clay reading x 100. Replacement Parts also Available.
