<< Click to Display Table of Contents >> Navigation:  Chapter 9 Geotechnical Data Management > Geotechnical Tests > Entering Test Data > Soil and Aggregates Tests > R-Value

The Resistance R-Value can be used as an acceptance criteria for aggregates for use as in base courses and bituminous courses. This test is used to measure the potential strength of subgrade, subbase, and base course materials with a stabilometer and expansion pressure device. The results obtained can be indicative of the performance of the base, subbase, or subgrade of a road when subjected to traffic.

 

The data entry and calculations for this test are performed on the R-Value form described in the next section. After the data and calculations have been performed the results are displayed in a test report as described in the reporting section below. The format of this report is controlled by the geotechnical template used for the test.

 

The methodology and calculations for this test adhere to "ASTM D2844-01 Standard Test Method Resistance R-Value and Expansion Pressure of Compacted Soils". For more detailed information on the methodology and calculations please review this standard.