Asphalt Testing

Photo of Bituminous Penetrometer Needle
Penetrometer Needle for Bituminous materials. Standard hardened stainless steel needle, 40-45mm exposed needle length. Wt. 2.5g. ASTM D5; AASHTO T49, IP49; ASA Std., A37.1; Fed Spec. SS.R. 406C, Meth. 214.01.
Photo of Constant Temperature Ductility Machine. Koehler
Similar to the standard Ductility Machine (A1383), but equipped with a solid state, thermostatically controlled bath and circulator to control temperature within ± 0.9°F (±0.5°C) in the range of 35-90°F (1.7-32.2°C). Circulated water is directed through stainless steel tubes beneath a false bottom in the trough to provide efficient heat transfer. Measures the distance of elongation of a bitumen sample when a briquet specimen is pulled apart at a specified speed and temperature. Supplied with three standard brass briquet molds and brass base plate.
Photo of Microprocessor-Based Digital Penetrometer. Koehler
A new microprocessor based penetrometer loaded with advanced features to provide ease of operation and highly reproducible consistency measurements of petroleum products. Microprocessor control provides a full range of measurement and reporting options, and operation is simplified by four user programmable presets that facilitate lowering the penetrator tip to the sample surface. The penetrometer defaults to the standard ASTM interval of 5.0 seconds, or the operator may conveniently program a different interval in the range between 0.1 and 9999.9 seconds (in 0.1 second increments).
Photo of Koehler Manual Penetrometers

Designed for ASTM penetration tests on petroleum products and for consistency tests on a wide range of food products, cosmetics, pastes and other solid to semisolid products. Precision machined and assembled to exacting specifications, and ruggedly constructed to insure long service life in both laboratory and field applications. Features a full penetration range of 0-62.0mm with 1/10mm subdivisions (0-620 penetration scale). Accommodates cones and needles to perform all of the ASTM tests on lubricating greases, asphalts, petroleum waxes and petrolatums.

Photo of Softening Point Apparatus. Koehler
The sample is cast in shouldered rings and heated at a controlled rate under the weight of a steel ball. The softening point is the temperature at which the bitumen disks soften and sag downward a specified distance. Consists of 800mL beaker, 2 standard balls, shouldered rings, ball centering guides, ring holder, bottom plate and beaker cover with support rods. Order thermometer and heater separately. Conforms to the specifications of: ASTM D36, E28; AASHTO T53; IP 58, 198; NF T 66-008. Shipping Weight: 4 lbs (1.8kg).
Photo of Penetrometer Cones & Needles. Koehler
Precision machined cones and needles for ASTM and related methods. Use together with A1570 and A1573 series penetrometers to determine the consistency of petroleum products.
Constant temperature water bath for conditioning samples prior to a penetration test. Full visibility bath has a large shelf to accommodate a wide range of sample containers, including all containers used in ASTM tests. Sample containers can be left in the bath during the penetration test if required. The base of the Koehler manual penetrometer can be placed directly on the shelf of the bath, or the head assembly of the digital automatic model can be reversed to overhang the bath. Temperature Range: Ambient to 70°C.
Photo of Breaking Point Apparatus
Determines the breaking point of solid and semi-solid bitumens. A thin steel plaque is coated with the sample and flexed in a bending apparatus at descending temperatures until cracks appear in the sample coating. Consists of two concentric borosilicate glass tubes with movable steel plate holders. A cone-and-peg mechanism moves the inner tube up and down relative to the outer tube, which varies the distance between the plate holders, causing the stainless steel test plate to be flexed. The inner tube accommodates a test thermometer. Supplied with 12 spring stainless steel plaques.
Photo of Single, Softening Point Apparatus Set. Humboldt
Ring and ball method softening point apparatus used for single determinations, asphalts, pitches, tars and most resins. Includes burner, beaker, support stand, 1 ring, wire gauze with ceramic center, thermometer clamp, 1 shouldered ring and stem with hardened steel ball. Order Thermometer separately. Meets ASTM D36, E28; AASHTO T53.
Photo of Automatic Universal Penetrometer

Automatic instrument for precision penetration measurements of bituminous materials, cement, petrolatum, waxes, food, cosmetic, and pharmaceutical products. Digital timer with release mechanism is switchable to seconds, minutes, or hours. Timer may be set in 1/10th second intervals. Plunger releases with push of a button, and automatically stops after the preset time duration. 5" diameter indicator dial, graduated in 400 divisions of 0.1mm, corresponding to 40mm penetration. Zero preset to eliminate errors.

Photo of Manual Universal Penetrometer

Direct-reading instrument for precision penetration measurements of bituminous materials, cement, petrolatum, waxes, food, cosmetic, and pharmaceutical products. 5" diameter indicator dial, graduated in 400 divisions of 0.1mm, corresponding to 40mm penetration. Zero preset to eliminate errors. Includes 47.5g plunger with 3.2mm hole, bituminous penetration needle and two loading weights (50g and 100g). Overall dim. 10-1/2 x 13 x 22" (266.7 x 330.2 x 558.8mm). Meets ASTM D5, D217, D1168, D1191, D1321, D1403, D1831, D1855; AASHTO T49, T187. Shipping weight: 32 Lbs.