2310 Using X-Ray Fluorescence to Assess Soil Subgrade Stabilization Competency During Construction Inspection
| 项目名称： | 2310 Using X-Ray Fluorescence to Assess Soil Subgrade Stabilization Competency During Construction Inspection |
| 摘要： | Currently, ODOT does not have the technology to assess subgrade stabilization content and distribution during construction, prior to pavement laying. Adequate subgrade stabilization is paramount to quality pavement performance. X-Ray Fluorescence (XRF) has been shown to accurately measure the amount of stabilization in soil and, when using proper sampling and testing protocols, can provide an excellent assessment of the spatial distribution of a soil additive. This information can be used to make recommendations to transportation officials on how to employ the portable handheld XRF (PHXRF) and implement laboratory XRF testing protocol on job-sites for quality control applications or during forensic investigations. This technology would help DOTs to more efficiently and effectively build subgrades that would last longer, require less maintenance, and lower the cost of roadway construction. In addition, PHXRF may be a viable solution in sulfate testing in soil subgrades and environmental applications. PHXRF can, potentially, serve several purposes on site, since sulfate detection changes any stabilization protocol because of the threat of ettringite formation. |
| 状态： | Active |
| 资金： | $104,000 |
| 资助组织： | Oklahoma Department of Transportation |
| 项目负责人： | Garland Jr, Gregory Scott；Hook, Gary L. |
| 执行机构： | University of Oklahoma, Norman |
| 开始时间： | 20191001 |
| 预计完成日期： | 20210930 |
| 主题领域： | Construction；Geotechnology；Transportation (General) |
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