Marshall Accessories

The Marshall accessories include paper discs, the flowmeter kit, mold extractors, marshall breaking heads, and lottman breaking heads.  The paper discs have a circular smooth edge with either 4″ or 6″ diameters.  They lay in the bottom of compaction molds prior to filling with asphalt mixture to facilitate removal of the sample from the mold.  The dial flowmeter measures flow during Marshall testing. It consists of a special dial indicator with a maximum position brake assembly and guide sleeve. Fitting over either a guide rod or a 4″ or 6″ Marshall breaking head. The mold extractors work with the compression tester for removing either 4″ or 6″ compaction mold specimens. The Marshall breaking heads consist of an upper and lower cylindrical segment. Having 3″ inside radius of curvature for 6″ samples and 2″ for a 4″ sample. Lottman breaking heads test tensile strength in 4″ and 6″ samples.