Welcome to the 503 Series!

Rapid Test to Establish Grading of Unbound Aggregates

Researchers:
Carl T. Haas and Alan F. Rauch

            The objective of this study was to develop a test method that can operate in an automatic, continuous sampling mode. Current production methods are mechanical and time consuming. Most recent prior research was proprietary and had not made a significant advancement. The project evaluated current technology, proposed a promising solution, built on prototype, and demonstrated the capability of the device, designated the “LASS” (laser-based aggregate scanning system). The LASS can rapidly acquire volumetric data on multiple particles in an aggregate sample.

            In this 503 series you will find the following reports:

503-1, “Evaluation of Potential Aggregate Grading Technologies,” Alan F. Rauch, Carl T. Hass, Hyoungkwan Kim, and Craig Browne.

503-2, “An Evaluation of Automated Devices to Replace and Augment Manual Sieve Analyses in Determining Aggregate Gradation,” Alan F. Rauch, Carl T. Haas, Craig Browne, and Hyoungkwan Kim.

503-3F, “Automation of Aggregate Characterization Using Laser Profiling and Digital Image Analysis,” Carl T. Haas, Alan F. Rauch, Hyoungkwan Kim, and Craig Browne.

Please click on the above references to go to the individual reports.