Evaluation of non-nuclear density gauges
WebProper compaction of soils, bases, and other unbound materials is highly important in road construction and critical to the performance of pavements. Hence the ability to quickly and accurately measure density and moisture content is important; nuclear density gauges (NDGs) have long been used to perform this task. With increasing regulations and cost … WebTitle : Alternatives to Nuclear Density Testing : Participants : Huiming Yin; Gisele G. Ribeiro (Ph.D student); Project Quad : Summary/Objectives : The goal of this project is to identify, develop and evaluate some (non-nuclear) alternative methods to the Nuclear Density Gauge (NDG) to assure the performance of asphalt pavements with appropriated …
Evaluation of non-nuclear density gauges
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http://www.columbia.edu/cu/civileng/yin/projects4.html WebEvaluation of the Nonnuclear Density Gauge for Quality Control of Hot-Mix Asphalt Prepared by: John W. Henault, P.E. April 2010 Research Project: SPR-2267 ... correspondence was found between PQI density and nuclear gauge density. Finally, for instances where the H20 Number was greater than 15, a poor correspondence was found
WebJun 1, 2011 · Evaluation of Non-Nuclear Density Gauges, Research Report KTC-03-24/FR115-01-1F, Kentucky Transportation Center, University of Kentucky. Annual Book of ASTM Standards. Jan 2009; WebEvaluation of a Non-Nuclear Soil Density Gauge on Fine-Grained Soils. US Army Corps of Engineers, Engineer Research and Development Center. Vicksburg, MS: The U.S. Army Engineer Research and Development Center (ERDC). Nazzal, M. (2014). Non-Nuclear Methods for Compaction Control of Unbound Materials.
WebThe number of rays detected by the gauge is proportional to pavement density and can be calibrated to actual densities based on pavement cores tested in the laboratory. Non-Nuclear Electrical Gauges. Non-nuclear gauges have been developed as an alternative to nuclear density gauges because they do not contain radioactive material or require the ... WebThis report presents results from an evaluation of a non-nuclear soil moisture-density gauge, the Soil Density Gauge SDG 200, tested on a series of 16 different fine-grained soils. If the results were successful, the device would serve as a replacement to the standard nuclear moisture-density gauge. Results from a standard nuclear moisture …
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WebOverall, neither non-nuclear gauge was able to predict core densities as accurately or precisely as the nuclear gauge. Of the non-nuclear devices, the PQI generated more consistent results but was less sensitive to actual changes in density. The PaveTracker was more sensitive to actual changes in density, but exhibited a higher level of ... how to install catalina on unsupported imacWebNuclear densitometry is a technique used in civil construction and the petroleum industry, as well as for mining and archaeology purposes, to measure the density and inner structure of the test material.The processes uses a nuclear density gauge, which consists of a radiation source that emits particles and a sensor that counts the received particles that … how to install catalina from usbWebInstead, results from side-by-side comparisons with the accepted nuclear density gauge were used to aid in the evaluation of the new density-measuring device. It was concluded, on the basis of data from 76 projects in six different states, that the proposed nonnuclear density gauge must be further developed before it can be used to determine ... jonell walthall realtorWeb23 rows · Item Description. United States. Army. Corps of Engineers. This report presents results from an ... how to install catalytic converter alarmWebEvaluation of Non-nuclear Alternatives to Replace the Nuclear Density Gauge During Compaction Quality Control of Unbound Pavement Layers Ayman W. Ali1(&), Yusuf Mehta1, Manuel Celaya2, and Giri Venkiteela3 1 Center for Research and Education in Advanced Transportation Engineering Systems (CREATEs), Rowan University, Glassboro, NJ, USA jonell mohoney pediatricsWeb2 days ago · High-speed rail has an important impact on the location choices of enterprises and the labor force, which is reflected in a complex space–time process. Previous studies have been unable to show the change characteristics between enterprises and the labor force at the county level. Therefore, based on the new economic geography theory, we … how to install cat 5 outletWebthose based on density gauges (nuclear density gauges [NDGs] and non-nuclear density gauges [NNDGs]). It is generally agreed that measuring core density in accordance with AASHTO T 166 (American Association of State Highway and Transportation Officials [AASHTO], 2007) or a similar procedure is the most accurate … how to install cat 6 cable ends