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Marshall Stability Breaking Head, 6in (152mm)
The Marshall Stability Breaking Head for 6in (152mm) hot-mix asphalt specimens is a crucial component for determining the stability and flow of bituminous mixtures. When positioned within a load frame, this apparatus applies a compressive load to the specimen, allowing engineers and technicians to accurately measure its deformation and flow rate. This data is essential for assessing the quality and performance characteristics of asphalt paving mixtures.
The breaking head is constructed with a rugged, durable design to withstand the high stresses of repeated testing. It consists of precisely machined upper and lower segments, which are semi-circular and designed to securely cradle the asphalt specimen. These segments are connected by two vertical guide rods that move smoothly through low-friction sleeves, ensuring that the load is applied uniformly and without lateral interference. This precision is key to achieving accurate and repeatable test results.
While specifically designed for seamless integration with Load Frames, the universal design of the Marshall Breaking Head allows it to be used with load frames from many other manufacturers.
Features:
- Designed for testing 6in (152mm) diameter asphalt specimens
- Precision-machined guide rods and low-friction sleeves ensure accurate and concentric loading
- Durable construction provides a long service life
- Compatible with Karol-Warner Load Frames and many other brands
- Also available in a 4in (102mm) model
Meets Test Methods:
- AASHTO T245
- ASTM D5581
- ASTM D6927