Marshall Stability Breaking Head, 4in

Marshall Stability Breaking Head, 4in (102mm)

The Marshall Stability Breaking Head is a crucial component for determining the stability and flow of hot-mix asphalt (HMA) specimens. Designed for 4in (102mm) diameter samples, this apparatus is used in a load frame to apply compressive force and measure the specimen's resistance to deformation and its plastic flow rate at a specified temperature.

The breaking head consists of precisely machined upper and lower cylindrical segments that fit the curvature of the asphalt specimen. These segments are connected by two robust vertical guide rods equipped with low-friction sleeves, ensuring smooth, vertical movement and accurate alignment during testing. This design guarantees that the load is applied uniformly and concentrically, providing reliable and repeatable test results.

While specifically engineered for seamless integration with Load Frames, the versatile design of the Marshall Breaking Head also allows it to be compatible with a wide range of load frames from other manufacturers.

Key Features:

• Precision Machining: The upper and lower segments are carefully machined to fit the specimen's dimensions, ensuring uniform load distribution.
• Accurate Loading: Smooth vertical guide rods with low-friction sleeves ensure consistent and precise application of force.
• Durable Construction: Built from high-quality materials to withstand the rigors of frequent laboratory use.
• Broad Compatibility: Designed for Karol-Warner Load Frames but adaptable for use with many other brands.
• Compliance: Fully meets the requirements of multiple testing standards for Marshall stability testing.

Included Items:

• 4in Marshall Stability Breaking Head

Meets Test Methods:

• AASHTO T245
• ASTM D6927
• ASTM D5581