Automated Laboratory Testing Methods for Specific Gravity & Absorption: Verified to Match the Current Test Methods
Record Type: DOT
Current methods of testing aggregate are manually intensive and physically demanding. While staffing levels are decreasing, the time demands are increasing; consequently requiring more automated testing processes to continue providing the number of tests needed. To accurately predict the quality of aggregate and provide adequate time to perform new tests that come on-line such as Micro Deval, automated systems in gradation have been developed but are in limited use. In addition, there has been no real work done on automation of specific gravity and absorption tests. The objectives of this project are to: (1) develop aggregate test methods to be used in DOT laboratories, private laboratories, and company laboratories which will provide faster and more numerous results by producers, suppliers and owners; and (2) prepare recommendations to Ohio Department of Transportation (ODOT) for standard specification changes and equipment to purchase based on the capability, precision, and durability of the evaluated equipment.
Start date: 2006/7/1
End date: 2009/1/1
Status: Active
Contract/Grant Number: 134302
Total Dollars: 191652
Source Organization: Ohio Department of Transportation
Date Added: 01/18/2007
Index Terms: Specific gravity, Laboratory tests, Absorption, Automated testing, Aggregates, Aggregate gradation, Ohio, Capabilities, Testing protocol, Research projects,
|
