The Automatic Heavy-Duty 6in Single Indexing Compactor compacts one 6in Marshall specimen in an indexing mold. Heavy-duty frames reduce structural and mechanical wear and tear during operation. The bevel-face hammer and indexing base plate produce a consistent kneading action during compaction. Molds are secured with a cam-action lever assembly. An automatic counter shuts off the unit at completion of the compaction process. Oak pedestal with steel plate, 10lb (4.5kg) bevel-face hammer, and 6in mold, base and collar assembly are included.
The Marshall System is widely used for design and control of bituminous paving mixtures. The resistance to plastic flow of compacted cylindrical specimens is measured in terms of maximum load before fracture occurs. Standard 4" (102mm) diameter specimens are suitable for up to 1" (25.4mm) maximum aggregate size.
Six inch specimens are compacted with a 10 lb (4.54kg) hammer having 3-7/8" (98mm) circular face and 18" (457mm) free fall. Molds are easily inserted and removed via a cam-action lever.
The Automatic Heavy-Duty 6in Single Indexing Compactor has a surcharge weight applied to the hammer foot during compaction. The weight is automatically lifted and released the exact number of hammer blows preset on the digital counter. Multiple automatic units permit duplicate compacting of check specimens under exact temperature conditions. They are also useful for mix design labs or labs with many test to run. Compaction Mold Assemblies, mold holders, hammers, counters, pedestals, and belt guards are provided with this mechanical compactor.
Comes with an indexing mold and bevel-faced hammer.
Overall Dimensions: 20x66x12in (508x1,676x305mm), LxHxW.
Meets Test Methods:
ASTM D 5581
ASTM D 6926