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Nuclear Metering Of Soil Density And Moisture Content At Depth
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Book Synopsis Nuclear Metering of Soil Density and Moisture Content at Depth by : D. G. True
Download or read book Nuclear Metering of Soil Density and Moisture Content at Depth written by D. G. True and published by . This book was released on 1971 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was conducted of the potential applicability of nuclear measuring techniques for determining soil density and moisture content at depth, and changes in these properties, for Navy civil engineering purposes. Measurements were obtained under two different types of engineering requirement to assess measurement capabilities: (1) in base material and subgrade soil beneath the pavements at five airfields, to detect long term variations; (2) in hydraulically placed foundation soils at two construction sites, both before and after densification of the soil was attempted by driving compaction piles, to detect changes due to the densification effort. The data were analyzed and statistical procedures were developed to determine the magnitudes of measurement error. Measurement errors were relatively low compared with the measured temporal variations in the soil properties at th soil densification sites, but were so large as to obscure a large portion of low-level, long-term changes occurring in the pavement subgrades. (Author).
Book Synopsis Density and Moisture Content Measurements by Nuclear Methods by : Robin P. Gardner
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 :ASTM Committee D-18 on Soils for Engineering Purposes Publisher :ASTM International ISBN 13 : Total Pages :113 pages Book Rating :4./5 ( download)
Book Synopsis Symposium on Nuclear Methods for Measuring Soil Density and Moisture by : ASTM Committee D-18 on Soils for Engineering Purposes
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:
Book Synopsis Nuclear Meters for Measuring Soil Density and Moisture in Thin Surface Layers by : D. J. Belcher
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:
Book Synopsis Density and Moisture Content Measurements by Nuclear Methods by : L. F. Ballard
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.
Book Synopsis Field Tests of Nuclear Instruments for the Measurement of Soil Moisture and Density by : United States. Forest Service. Vicksburg Infiltration Project
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:
Book Synopsis Optimization of Density and Moisture Content Measurements by Nuclear Methods by : Robin P. Gardner
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.
Book Synopsis Nuclear Radiation Methods for the Determination of Density and Moisture Content of Soils by : Shunil E. Roy
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:
Book Synopsis The Use of Nuclear Meters in Soils Investigations by : Preston Clark Smith
Download or read book The Use of Nuclear Meters in Soils Investigations written by Preston Clark Smith and published by . This book was released on 1968 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Generalized Calibration of a Nuclear Moisture/Density Depth Gauge by : PH. Morris
Download or read book Generalized Calibration of a Nuclear Moisture/Density Depth Gauge written by PH. Morris and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of nuclear moisture/density depth gauges to soil deposits has generally relied on calibration by direct correlation with measured values of moisture content and density. In very soft variable deposits such as coal tailings, direct calibration is not possible. A generalized calibration can be developed from first principles based on the elemental composition of the soil being tested and the application of existing theories. Density and moisture content calibrations are considered separately for two different access tubes, and reasonably reliable calibrations are obtained. In applying these calibrations, an iterative procedure is required since the moisture content has a direct bearing on the elemental composition of the moist soil. The paper gives an insight into the operation and important features of a nuclear gauge.
Book Synopsis Soil-moisture Measurement by : Howard William Lull
Download or read book Soil-moisture Measurement written by Howard William Lull and published by . This book was released on 1955 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of a Nuclear Gauge for Forest Soil Bulk Density Measurement by : Christopher Hipkin
Download or read book Use of a Nuclear Gauge for Forest Soil Bulk Density Measurement written by Christopher Hipkin and published by . This book was released on 1987 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methods of Measuring Soil Moisture in the Field by : Arnold Ivan Johnson
Download or read book Methods of Measuring Soil Moisture in the Field written by Arnold Ivan Johnson and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluates methods for measuring soil moisture and describes the equipment used.
Book Synopsis Measurement of Moisture and Density in Soils by the Nuclear Method by :
Download or read book Measurement of Moisture and Density in Soils by the Nuclear Method written by and published by . This book was released on 1959 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Measurement of Soil Moisture and Density by Neutron and Gamma-ray Scattering by : Donald Jenks Belcher
Download or read book The Measurement of Soil Moisture and Density by Neutron and Gamma-ray Scattering written by Donald Jenks Belcher and published by . This book was released on 1950 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Methods for Determining Density and Moisture Content by : Thomas I. Csathy
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:
Book Synopsis Nuclear Measurement of Subgrade Moisture by : Nari K. Vaswani
Download or read book Nuclear Measurement of Subgrade Moisture written by Nari K. Vaswani and published by . This book was released on 1975 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
