The Marshall Stability Load Frame is designed for versatility in multi-disciplined labs. The loading rate is fixed at the 2in (50.8mm) per minute, as specified for Marshall testing. The loading rate is maintained at ±1% by the 3/4hp DC motor and controller.
Outfit the Marshall Load Frame with selected components to design a custom system for your application. A complete selection of components is available to install on the motorized load frames for measuring, displaying, and recording load and flow of asphalt specimens. Systems can be configured for Marshall or Lottman testing of 4in (102mm) or 6in (152mm) samples. Data collection options range from manual recording using load rings and mechanical dial gauges to automatic recording from load cells, displacement transducers and a digital readout box connected to a user-supplied computer for load and flow data acquisition.
This heavy-duty load frame has a 10,000lbf (44.5kN) capacity and is housed in a 14-gauge steel cabinet with a durable enamel finish. A 6-3/4in (171.5mm) diameter lower platen is included. The load frame has a vertical clearance of 37.3in (947mm) and horizontal clearance of 11.9in (302mm). Cross-head heights are quickly and accurately changed using the selfcentering adjusting nuts. The 1-1/4in (31.8mm) diameter vertical threaded rods are plated for corrosion resistance. Flexible boots protect the precision loading screws from dust and dirt. Component sets for load and flow measurements are ordered separately.
Meets Test Methods:
ASTM D 4867
ASTM D 5581
ASTM D 6927