题名: |
Testing Methods to Determine Long Term Durability of Wisconsin Aggregate Resources. Wisconsin Highway Research Program. Final rept. (Oct 2002-Oct 2005). |
作者: |
CADY, P. D.; LANE, D. S.; MOKAREM, D. W.; WEYERS, R. E.; WILLIAMSON, G. S. |
关键词: |
*Wisconsin-; *Aggregates-; *Test-methods; *Durability-.;Transportation-industry; Literature-review; Laboratory-tests. |
摘要: |
This project investigated the predictive capabilities of a wide range of aggregate durability tests for Wisconsin course aggregate resources with the goal of developing a coarse aggregate durability testing protocol. It is of great importance to be able to distinguish between durable and non-durable aggregate sources because if the aggregate deteriorates the life-cycle of the constructed facility will be adversely affected. Wisconsin Department of Transportation (WisDOT) officials have determined that the current aggregate durability testing protocol for Wisconsin may be deficient and that there is a need to update the testing program in light of recent developments in aggregate durability testing. Also, the use of recycled/reclaimed aggregate material has increased dramatically in recent years and typical durability tests may be capable of accurately assessing the durability of these aggregates. The investigators were charged with the responsibility of reviewing the state-of-the-practice of aggregate durability testing and selecting potential tests to be investigated in the laboratory phase of the project. Additionally, current WisDOT aggregate durability tests were carried out in the laboratory for comparative purposes. As a result of this research, revised aggregate durability testing protocols have been proposed for both natural and recycled/reclaimed aggregate material for use in the bound or unbound state. |
报告类型: |
科技报告 |