A Comparison of Optical Gradation Analysis Devices to Current Test Methods - Phase 1: Executive Summary Report

Rajagopal, Arudi; Ohio. Dept. of Transportation. Office of Research and Development

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A Comparison of Optical Gradation Analysis Devices to Current Test Methods - Phase 1: Executive Summary Report

2006-10-01
By Rajagopal, Arudi

[PDF-65.48 KB]

English

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Creators:

Rajagopal, Arudi
Corporate Creators:

Ohio. Dept. of Transportation. Office of Research and Development
Corporate Contributors:

American Association of State Highway and Transportation Officials ; United States. Federal Highway Administration

American Association of State Highway and Transportation Officials ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Aggregate Gradation Aggregates Angularity Cameras Computerized Particle Analyzer Elongation Index Geotechnology Gravel Highways I36: Aggregates Image Analysis Limestone Optical Devices Sieve Analysis Time Savings User Interfaces (Computer Science)
Publication/ Report Number:

FHWA/OH-2006/23
Resource Type:

Brief
Geographical Coverage:

United States ; Ohio

United States ; Ohio Less -
Edition:

Final Report
Corporate Publisher:

Ohio. Dept. of Transportation. Office of Research and Development
Abstract:

The specific objectives of the study are to: 1. Conduct a review and evaluation of available optical gradation analysis devices that are in use and/or being investigated by other agencies. 2. Prepare physical samples and conduct gradation tests on a range of aggregate samples using current ASTM/AASHTO procedures. 3. Repeat tests on physical samples using the optical devices that become available to the researchers. 4. Analyze the data. 5. Identify the specific tasks Phase-2 evaluation for a comprehensive evaluation of optical devices. First, a review of available optical devices was conducted. An optical device called Computerized Particle Analyzer (CPA) was selected for laboratory evaluation to determine its suitability for gradation analysis. This device has been designed to examine particles as they freely fall in front of a light source, while a sophisticated camera capable of making 10,000 scans per second captures images.
Format:

PDF
Funding:

134264
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:01d48533b58b13755df8b4a92dc535ebd8750092a2aeec4ef4dce56ec3ab4149
Download URL:

https://rosap.ntl.bts.gov/view/dot/37639/dot_37639_DS1.pdf
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A Comparison of Optical Gradation Analysis Devices to Current Test Methods - Phase 1: Executive Summary Report

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