Asphalt Binder Testing Equipment
Pressure Aging Vessels
Softening Point Test
Asphalt Binder Testing, continued
Because of this, binder testing is vital for HAS quality control, specification acceptance, and overall mixture evaluation.
A variety of different binder tests are used depending on testing needs. With many applications, these tests are extremely versatile. Humboldt provides a wide-range of asphalt binder testing solutions to serve numerous test methods. These methods include:
Bending Beam Rheometer Testing works to measure low temperature stiffness and relaxation properties of asphalt binders. These BBR machines indicate an asphalt binder’s ability to resist low temperature cracking.
Distillation Testing is utilized to assess residue content in asphalts. These tests are used to check compliance with standards in projects as well as for mix design.
Ductility Testing determines asphalt binder ductility. By using a ductilometer or ductility machine, these tests indicates how well the sample will elongate under traffic pressure.
Flash Point and Fire Point Testing are conducted to know the temperature at which an asphalt binder becomes vaporized into a flammable gas. This parameter is established by a flash point tester and useful in determining asphalt’s volatility and fire resistance.
Penetration Testing provides precision penetration measurements and can be used with a variety of materials. Using a penetrometer, this test is able to assess the hardness of an asphalt binder.
Pressure Aging Vessel Testing is utilized to test an asphalt binder’s physical property by stimulating long term age. Asphalt binders are exposed to heat and pressure to artificially display aging over a 7 to 10-year period.
Rice Testing defines the theoretical maximum specific gravity of asphalt specimens. By removing air voids from an HMA sample, the specific gravity of the remaining aggregate and asphalt binder is tested.
Rolling Thin-Film Oven Testing is used to stimulate the STA processes of semi-soft asphalt binders. This machine is employed to measure the effects of both heat and air of binders in permeant renewal.
Softening Point Testing involves the examination of asphalt using a ring and ball method. This test works to quantify the temperature at which an asphalt binder achieves a specified degree of viscosity.
Viscosity Testing of asphalt binders acts to evaluate its resistance to deformation. While this type of testing can take place in many forms, it ensures that an asphalt mix will be capable of withstanding road conditions.
Viscometer and Rheometer Testing Viscometer and Rheometer Testing determine the flowability and viscosity of asphalt binders. In addition, these machines are also able to validate yield stress in a sample.