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Download or read book Nuclear Methods for Determining Density and Moisture Content written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robin P. Gardner
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (319 download)
Download or read book Density and Moisture Content Measurements by Nuclear Methods written by Robin P. Gardner and published by . This book was released on 1967 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Thomas I. Csathy
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book Nuclear Methods for Determining Density and Moisture Content written by Thomas I. Csathy and published by . This book was released on 1962 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. F. Ballard
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (319 download)
Download or read book Density and Moisture Content Measurements by Nuclear Methods written by L. F. Ballard and published by . This book was released on 1965 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : ASTM Committee D-18 on Soils for Engineering Purposes
Publisher : ASTM International
ISBN 13 :
Total Pages : 113 pages
Book Rating : 4./5 ( download)
Download or read book Symposium on Nuclear Methods for Measuring Soil Density and Moisture written by ASTM Committee D-18 on Soils for Engineering Purposes and published by ASTM International. This book was released on 1961 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shunil E. Roy
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.3/5 (121 download)
Download or read book Nuclear Radiation Methods for the Determination of Density and Moisture Content of Soils written by Shunil E. Roy and published by . This book was released on 1956 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robin P. Gardner
Publisher : Highway Research Board
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (359 download)
Download or read book Optimization of Density and Moisture Content Measurements by Nuclear Methods written by Robin P. Gardner and published by Highway Research Board. This book was released on 1971 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : L.F. Ballard
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (692 download)
Download or read book Density and Moisture Content Measurements by Nuclear Methods written by L.F. Ballard and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Forest Service. Vicksburg Infiltration Project
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (243 download)
Download or read book Field Tests of Nuclear Instruments for the Measurement of Soil Moisture and Density written by United States. Forest Service. Vicksburg Infiltration Project and published by . This book was released on 1955 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Steve L. Webster
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (359 download)
Download or read book Determination of In-place Moisture and Density by Nuclear Methods written by Steve L. Webster and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in the design of nuclear equipment and a better understanding of the nuclear principles involved have led to increasingly widespread use of nuclear gages in earth construction control work. This report describes surface-type nuclear equipment, procedures, and various test methods used for making shallow-depth moisture and density determinations in place on soil and soil-aggregate mixtures. In general, a 6-in. direct transmission density test using a properly operating nuclear gage and an up-to-date factory calibration curve will yield test results slightly better than those of conventional density tests. The nuclear test is simpler to perform than conventional tests and requires only about 15 min to obtain both a density and moisture test result. (Modified author abstract).
Author : Thomas B Rosser (III.)
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (227 download)
Download or read book Evaluation of Nuclear Methods of Determining Surface in Situ Soil Water Content and Density written by Thomas B Rosser (III.) and published by . This book was released on 1969 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory tests were conducted to evaluate the accuracy and reliability of measuring surface in situ soil water content and density by the backscatter and direct transmission nuclear methods using a single nuclear device and scaler. The nuclear device functioned as a surface backscatter moisture and density meter or as a direct transmission density probe. To determine the accuracy of the nuclear measurements, it was necessary to know the actual density and water content of the test soil. Boxes were fabricated to exact dimensions, filled with uniformly compacted soil, and weighed, and actual average soil density values were calculated. Five soil types were tested to approximate a full range of possible construction materials. Each soil type was tested at eight different densities and water contents. To obtain comparative results, soil densities of each sample were determined by two accepted conventional methods (sand-cone and water-balloon) for determining density in the field. Test results indicated that in situ densities determined by the direct transmission nuclear method using the factory calibration curve furnished with the device were as accurate as densities obtained by the sand-cone and water-balloon methods. The direct transmission nuclear method using a WES-developed calibration curve provided slightly more accurate density measurements than either conventional method. A test procedure for determining surface layer density and water content of soil by nuclear methods is presented in Appendix A. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (676 download)
Download or read book Core Versus Nuclear Gauge Methods of Determining Soil Bulk Density and Moisture Content written by and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Symposium on Nuclear Methods for Measuring Soil Density and Moisture. 1960, Atlantic City, NJ.
Publisher :
ISBN 13 :
Total Pages : 105 pages
Book Rating : 4.:/5 (312 download)
Download or read book Symposium on Nuclear Methods for Measuring Soil Density and Moisture written by Symposium on Nuclear Methods for Measuring Soil Density and Moisture. 1960, Atlantic City, NJ. and published by . This book was released on 1961 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hugh L. Tyner
Publisher :
ISBN 13 :
Total Pages : 490 pages
Book Rating : 4.:/5 (195 download)
Download or read book An Evaluation of Conventional and Nuclear Methods for Determining In-situ Density and Moisture Content of Soils written by Hugh L. Tyner and published by . This book was released on 1966 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Sweeney
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (359 download)
Download or read book Measurement of Soil Moisture and Density by Nuclear Methods written by R. Sweeney and published by . This book was released on 1962 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (676 download)
Download or read book Core Versus Nuclear Gauge Methods of Determining Soil Bulk Density and Moisture Content written by and published by . This book was released on 1983 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. J. Belcher
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Meters for Measuring Soil Density and Moisture in Thin Surface Layers written by D. J. Belcher and published by . This book was released on 1952 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
