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Operating Procedures for the Asphalt Softening Point Tester
■Place the metal ring on a glass plate coated with a glycerin-talc powder release agent (glycerin:talc powder = 2:1). Heat the asphalt (for petroleum asphalt, heat to ≤ the estimated softening point + 90℃; for coal asphalt, heat to ≤ the estimated softening point + 50℃), stir it thoroughly, sieve it, and then pour it into the metal ring so that its surface slightly exceeds the top of the ring.
2021-10-25
Introduction to the Parameters of the Asphalt Extensometer
This test is applicable for evaluating the elastic recovery performance of thermoplastic rubber-modified asphalt polymers—that is, determining the percentage of deformation recovery through the sieve holes after the specimen has been elongated to a specified length using a ductility tester. Supplied by Hebei Dahong Testing Instrument Co., Ltd. Unless otherwise specified, the test temperature is 25℃, and the tensile rate is 5 cm/min ± 0.25 cm/min.
2021-10-21
Technical Parameters and Specifications of the Asphalt Penetration Tester
The asphalt penetration tester is designed and manufactured in accordance with the technical requirements specified in the industry standard JTGE20-2011 issued by the Ministry of Transport. This method is applicable to determining the penetration of road petroleum asphalt, polymer-modified asphalt, as well as the penetration of residue remaining after distillation or emulsification of liquid petroleum asphalt, measured in 0.1 mm increments. The standard test conditions are 25℃, with a load of 100 g and a penetration time of 5 seconds.
2021-10-18
Features and Main Technical Specifications of the Asphalt Mixture Stability Tester
The asphalt mixture stability tester comprises a main unit, a force-measuring assembly, a flow-value measurement assembly, a printing assembly, and related accessories, all designed for measuring stability and flow value during testing. Moreover, with only minor modifications to the main unit of this testing instrument and the addition of appropriate accessories, it can be used to perform a variety of tests that require the application of vertical loads.
2021-10-13
Introduction to the Basic Parameters of the Asphalt Extensometer
The asphalt ductility tester is suitable for measuring the ductility of various specifications and models of asphalt, as well as the residue remaining after distillation of liquid asphalt and the evaporative residue from asphalt emulsions. It is widely used in manufacturing, road construction, and research institutions, and is particularly well-suited for testing modified asphalt. The instrument complies with the standards set by the Ministry of Transport (JTJ-E52-2011).
2021-10-12