Sample test methods for determining percent of moisture and density of soils and asphalt nuclear method scope. The methods in this document are based on test methods set out in bs 77, part 9. Correction factors, nuclear moisturedensity measurements. Easy to operate humboldts hs5001ez moisturedensity gauge is just that easy to operate. Alpha adroit engineering ltd provides laboratory and field testing for soil compaction measurement, including also soil compaction testing using nuclear densometer. Who would say that at some point we would be able to test different types of soils for our own good. A nuclear densometer is a field instrument used in geotechnical engineering to determine the density of a compacted material. Nuclear densometer wikimili, the free encyclopedia. Proctor compaction test for maximum dry density what is compaction. The contractor compacted the subgrade prior to our test and the compactive effort was approximately the same as that used in the placement of the cullet fill. Nuclear gauge testing nuclear moisturedensity gauges are testing devices that use low level radiation to measure the wet density, dry density, and moisture content of soil and granular construction materials.
Drive pin hammer the drive pin hammer is designed to safely and efficiently prepare probe transmission holes for density testing with nuclear gauges. Mc3 elite features a simple operator interface, new large backlit lcd display, illuminated keypad, precision machined base and surface mount electronic technology. Soils special inspection test questions proprofs quiz. Nuclear gauge basics nuclear gauge manufacturers apnga. In order to keep operation of this equipment safe for the operators. Pdf comparison of nuclear gauge densitymeter and sand. However, neither of these technologies allowed the elimination of the current nuclear densometer in use by the department. Set depth automatic or manual 5 push the standard pad and answer the menu questions displayed on the screen. Astm d693810 standard method for inplace density and water content of soil and soil aggregate by nuclear methods shallow depth. Humboldts hs5001ez moisturedensity gauge is just that easy. Relative compaction the percentage ratio between the field density of a soil to the maximum. The chemical device tested was the s peedy calcium carbide soil moisture test.
As the operator of the nuclear gauge, you are inevitably exposed. Astm c231 standard test method for air content of freshly mixed concrete by. Feb 06, 2018 who would say that at some point we would be able to test different types of soils for our own good. A free powerpoint ppt presentation displayed as a flash slide show on id.
Nuclear densometer training, you must bring your personal monitoring badge provided by your employer or district representative. Gary pilarchik the rusted garden recommended for you. Scope this method of test covers the procedure for measuring the inplace density and moisture of soils by the. It consists of a radiation source that emits a cloud of particles and a sensor that counts the received particles that are either reflected by the test material or pass through it. Pdf on aug 4, 2015, bishnukumar tripathi and others published study of. Also known as a soil density gauge, the device uses the interaction of gamma radiation with matter to measure density, either through direct transmission or the backscatter. After the contractor has placed and compacted the soil material, field personnel will conduct nuclear moisturedensity testing according to aashto t 310. Pdf comparison of nuclear gauge densitymeter and sand cone. Once your project moves into the placement and compaction phases, elements certified construction materials technicians work at the job site to conduct field moisture tests, using nuclear and conventional methods, as well as periodic sampling of materials to verify continued compliance and uniform quality with. It is still necessary to utilize the nuclear densometer on a daily basis along with the both the pavement quality indicator 380 and the soil density. Nuclear gauge testing manual, transport and main roads, july 2019. Field density testing by using a nuclear density gauge roads and. Nuclear moisturedensity field testing procedure nebraska dot. Soils containing significant amounts of organic matter, such as coal measures.
The nuclear densitometer contains radioactive material, which can be dangerous if not handled properly. Nuclear gauge for density and moisture soil testing. An electronic nuclear moisturedensity gauge equipped with gamma and. Currently, indot uses the nuclear gauge for the measurement of wet density only. A nuclear density gauge is a tool used in civil construction and the petroleum industry, as well as for mining and archaeology purposes. An ndm test is a rapid, repeatable way of determining wet density and water content. Proctor compaction test, standard effort univ of arkansas. Study of the troxler nuclear soil density and moisture gauges. In conjunction with cbr testing the degree of compaction in the subbase and basecourse layer will first be tested using a cbr test rig. The subballast needs to be compacted to 95% before bnsf will take delivery of the final product. Apnga provides nuclear gauge basics and nuclear gauge manufacturers information, instro tek, cpn, humboldt, seaman, and troxler. We offer complete sales, service and calibrations from our locations throughout canada including electronic, electrical, hydraulic to 10,000 psi and mechanical onsite calibrations to c. Application of nuclear densometer to compaction compliance test.
Nuclear moisturedensity gauges are testing devices that use low level. It concludes that research is needed that includes a broad set of testing methods and equipment on the same set of soil conditions. Measurementsofthe bulkdensity ofthe soil, by meansof undisturbed cores. A nuclear densometer test is a field test used in geotechnical engineering. Introduction it has become increasingly evident that many nuclear gauge users are neglecting an important fact of life in the compaction testing of soils. Nuclear gauges are also used for industrial, mining, and scientific purposes.
Density of soil in place by the nuclear gauge soil density testing flow chart setting target values laboratory proctor one point proctor running field tests speedy moisture test drying moisture test. For more than 50 years, soil cement has proven to be effective and economical construction material for use in water resources applications including streambank protection, slope protection, channel. If performed improperly, settlement of the soil could occur and result in unnecessary maintenance costs or. The maximum dry density and optimum moisture content are determined from the results. Nuclear densometer test the final compaction test using th. Field density testing by using a nuclear density gauge. He testing is approved by the canadian nuclear safety council for the useof portable nuclear gauges and all staff are trained and certified to handlethe nuclear densometer. Manual of operation and instruction model 3440 surface moisturedensity gauge. The mc3 elite is the newest and most advanced nuclear density gauge cpn has ever developed. Astm d6938 17a standard test methods for inplace density. Compaction is the process of increasing the bulk density of a soil or aggregate by. The soil density measured with the nuclear density gauge, however, requires recurring verification against another standard test such as the sc density test.
Soil testing o wildcat penetration testing o atterberg limits testing astm d4318 o sieve analysis o moisture contents testing monitoring. Soil density and proctor tests for construction supervisors duration. A nuclear gauge also called a nuclear density gauge, a soil moisture gauge, or a moisture density gauge is a tool used for civil engineering projects and construction that measures soil density or soil water content. Humboldt gauges do not have a procedure for gauge function tests or specify limits. Also known as a soil density gauge, the device uses the interaction of gamma radiation with matter to measure density, either through direct transmission or the backscatter method.
Soil type briefly describe the material tested so that the appropriate. Nuclear gauge for density, soil compaction testing. These test kits include analysis service from humboldt. Standard test methods for density of soil and soil. D693817a standard test methods for inplace density and water content of soil and soil aggregate by nuclear methods shallow depth inplace density mass per unit volume water content nuclear gages backscattering airgap ratio direct transmission method. Before field tests are performed, the technician performs a calibration on the gauge which records the standard count of the machine. The importance of the application of necessary moisture. The compaction test results for the cullet are shown on plate 1 which is included at the end of this report. Soil properties as per found on various chainage location. Device comparison for determining field soil moisture content. Campbell pacific nuclear portaprobe percent test nuclear soil gauge, model mc2 radiological specification gamma source cesium7, cpn1 sealed capsule, 10 mcicapsule4caps neutron source americium241, cpn1 sealed capsule, 50 mcicapsule4 caps. Different types of soils may present different variations in field trials and laboratory tests. Using a drive pin and sledge hammer to make probe holes can be tiring and difficult, especially in cohesive and rocky soils.
Easy to operate, easy to power and easy to service. The dsc is an automatic 4minute test and requires no programming. Nuclear densometer readings shall be taken adjacent to the insitu cbr test sites. Ppt proctor compaction test for maximum dry density.
The nuclear densometer is regarded as as a fast and accurate tool to test the density and water content of compacted soils. Jul 25, 20 3 nuclear density test soil test duration. June 1985 an evaluation of a nuclear density gauge. Nuclear density gauges ndgs are increasingly being used to carry compliance testing on. For participation in the nuclear densometer certification, you must bring your personal monitoring badge and a copy of your radiological safety training certificate with you. Superseded versions of the manual are available on the nuclear gauge testing manual superseded page. The intensity of the radiation detected is dependent in part. The proctor test involves compacting the soil into a mold using a force at different levels of moisture content. The nuclear device tested was the nuclear density gauge, included for.
Measures density of soil for comparing the degree of compaction vs specs measures the effect of moisture on soil density vs specs provides a moisture density curve identifying optimum moisture moisture vs soil density a quick method of determining moisture density is known. Att4895, correction factors, nuclear moisturedensity measurements 1. After the contractor has placed and compacted the soil material, field. Daily most nuclear gauges require a warmup period and standard count. The original proctor test, astm d698 aashto t99, uses a 4inchdiameter 100 mm mould which holds cubic feet of soil, and calls for compaction of three separate lifts of soil using 25 blows by a 5. The ez gauge features a menudriven control panel with easytouse, builtin test routines and auto features, making testing a quick and accurate operation. A density and moisture correction factor must be determined at the beginning of each project, and. D693817a standard test methods for inplace density and water content of soil and soilaggregate by nuclear methods shallow depth inplace density mass per unit volume water content nuclear gages backscattering airgap ratio direct transmission method. Easy moisture density gauge, nuclear density gauge, soil. The testing procedure is analogous to burying a known quantity of radioactive material at a specific depth, and then. It is built to withstand the toughest construction and testing environments. Want to be notified when the nuclear gauge testing manual is. Drive pin hammer for nuclear soil moisture density gauges. Humboldts nuclear gauges provide density and moisture measurements for road bed construction to determine the percent of soil compaction.
The nuclear device tested was the nuclear density gauge, included for comparison purposes. We have developed this document to clarify and standardise the methods used to calibrate nuclear density gauges, and to test and report on earthworks on landfill sites. Nuclear gauge testing manual department of transport and. Field compaction data sheet nuclear direct transmission form sm 418b. Choose a test site on the compacted layer of soil or soil mixture represented by the one. By calculating the percentage of particles that return to the sensor, the gauge. This paper outlines a comparison between nuclear gauge densitymeter and sand cone test, used in two. For sure it is fast as it takes only 15 seconds to do the measurement. Because of potential health, environmental, and safety hazards, the nuclear regulatory commission requires tight controls for transport. Take up the quiz below on soils special inspection and see how it goes. Standard test method for water content of soil and rock in place by nuclear methods shallow depth the latest engineering, design, and manufacturing techniques have been incorporated, as well as over thirty years of experience. May 02, 2017 3 nuclear density test soil test tdot learning network. Model 3440 roadreader nuclear moisturedensity gauge offers two test modes for measuring the density of soil, aggregate, concrete and asphalt materials. The device determines the density of material by counting the number of photons emitted.
This investigation consisted of full scale construction. As you may have guessed from the name, a nuclear densometer uses nuclear energy to measure the density of the soil being tested. Scope this method of test covers the procedure for measuring the inplace density and moisture of soils by the attenuation of gamma and neutron radiation. Usda ohsec radiation safety division nuclear gauges. Test results will be recorded on the nuclear moisturedensity field sheet and the results verified for compliance with the. Pdf nuclear density gauge compaction testing alternatives.
Also known as a soil density gauge, the device uses the interaction of gamma. Main roads western australia calibration of nuclear moisturedensity meters. Standard test method for density of bituminous concrete in place by nuclear method astm d3017. Each leak test kit contains all of the materials necessary for users to perform a leak test on sealed source devices. Average the four or more k factors within each general soil type. Compaction tests made with nuclear moisture gauges june 2001 a report addressing the use of the moisture correction when using any nuclear moisture gauge, focusing on the 3411b. Then dial the appropriate average factor for the soil type being tested in the 3411b with the rotary switches at the bottom of the front panel under the label moisture correction. Standard test method for water content of soil and rock in place by nuclear methods shallow depth the latest engineering, design, and manufacturing. Nuclear densometer test the final compaction test using the nuclear densometer test method and astm standard d1557. This test method describes the procedure for determining the inplace density and. The fastest way of measuring dry density and moisture content of soils in the field is using nuclear densometer testing. Density of soil in place by the sand cone method t310. Performance of 1 one nuclear densometer test on the soil subgrade at a location adjacent to the fill area.
True means oven dry or other standard test for soil moisture. In construction, this is a significant part of the building process. Eb 15025 page 1 of 10 geotechnical engineering manual. The test is performed on a compacted base to establish its percentage of compaction. Suitability of nuclear densometer testing on glass cullet. Pdf 9781775519638 methods of sampling and testing road aggregates.
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