Tester Soil Density And Moisture Nuclear Method
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| Author | : Robin P. Gardner |
| Publisher | : |
| Total Pages | : 56 |
| Release | : 1967 |
| Genre | : Radioactive gages |
| ISBN | : |
Sources of error that have been identified on the gamma-ray soil density gauge are: (1) sensitivity to local density variations, especially at the soil surface, (2) sensitivity to soil composition, and (3) inaccurate calibration techniques. An attempt was made to solve these problems by developing for each gauge calibration models that enable stable and homogenous non-soil standards to be used for calibration. Calibration standards and calibration models for each gauge were found and tested. In the process of developing and testing the new nuclear gauge calibration model, the dual-gauge principal of compensating these gauges for variations in soil composition was discovered. The air-gap method of using this principal is explained and was optimized by using the calibration model developed in the current study.
| Author | : ASTM Committee D-18 on Soils for Engineering Purposes |
| Publisher | : ASTM International |
| Total Pages | : 113 |
| Release | : 1961 |
| Genre | : Nuclear physics |
| ISBN | : |
| Author | : Kenneth L. Brown |
| Publisher | : |
| Total Pages | : 50 |
| Release | : 1971 |
| Genre | : |
| ISBN | : |
The report covers the evaluation of the nuclear density and moisture method for possible use in military construction. One type of soil was used in the testing. A test fill was constructed and sub-divided into 30 testing locations. Two types of commercial nuclear testers were used. The nuclear testers were evaluated against the conventional density method (sand cone) and conventional moisture (oven dry). Four different nuclear density measurement methods were used. (Author).
| Author | : United States. Forest Service. Vicksburg Infiltration Project |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1955 |
| Genre | : Neutron counters |
| ISBN | : |
| Author | : Symposium on Nuclear Methods for Measuring Soil Density and Moisture. 1960, Atlantic City, NJ. |
| Publisher | : |
| Total Pages | : 105 |
| Release | : 1961 |
| Genre | : |
| ISBN | : |
| Author | : L. F. Ballard |
| Publisher | : |
| Total Pages | : 46 |
| Release | : 1965 |
| Genre | : Technology & Engineering |
| ISBN | : |
Data is provided from an evaluation of the accuracy of the nuclear gages in comparison with the currently used non- nuclear methods of determining soil density and moisture content. The research study was principally theoretical in nature and was conducted in two parts with each part respectively considering density and moisture content. Two existing commercial gages were evaluated, and a nominal experimental program employing non-soil standards of known density and composition was conducted to verify the density results. The results of the moisture content study were checked against data in the literature.
| Author | : American Society for Testing Materials. Committee D-18 on Soils for Engineering Purposes |
| Publisher | : |
| Total Pages | : 105 |
| Release | : 1961 |
| Genre | : |
| ISBN | : |
| Author | : Robin P. Gardner |
| Publisher | : Highway Research Board |
| Total Pages | : 100 |
| Release | : 1971 |
| Genre | : Technology & Engineering |
| ISBN | : |
The objective was to minimize the errors identified with measurement of density and moisture content of soils using nuclear gauges. To provide a reasonable basis for optimization, all identified errors were combined to yield a single criterion, the quality factor, which can be used to evaluate the over-all performance of a nuclear density gauge. Research aimed at minimizing moisture content measurement errors involved using the Monte Carlo or random walk method to simulate gauge response, checking the results of the simulation against experimental studies, and attempting to generalize the Monte Carlo results.
| Author | : ASTM Committee D-18 Staff |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1961 |
| Genre | : Nuclear physics |
| ISBN | : 9780803156791 |
| Author | : Shunil E. Roy |
| Publisher | : |
| Total Pages | : 200 |
| Release | : 1956 |
| Genre | : Soil moisture |
| ISBN | : |
