Accuracy of in-situ assessment of soil density and moisture content using the non-nuclear method
Accuracy of in-situ assessment of soil density and moisture content using the non-nuclear method
The in-situ determination of the conditions of the materials in the pavement and subgrade layers (density and water content) is essential in quality control. In addition to the traditional tests of the sand replacement method (density) and the oven drying method (moisture content), the nuclear method based on the gamma-densimeter device has been one of the most used due to its ease and quick operation. Non-nuclear alternative methods can be used, such as the electromagnetic method contemplated in the ASTM D7830/D7830M. The paper presents a study on the potential application of this method to quality control of earthworks, road pavement layers (unbound granular layers of base and sub-base) and subgrade. The paper describes an application of this test method to the case of soil, including a comparative analysis with other test methods, such as sand replacement and nuclear methods. The study's main results confirmed the method's feasibility and identified aspects of its practical application.
J. Neves; C. Lopes; C. M. Silva
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
A - New developments on structural design
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