Web4.1 Nuclear Asphalt-Content (AC) Gauge. 4.1.1 Variability of the AC Gauge at 6 percent asphalt content shall be no greater than 0.05 percent for a 4-minute count. 4.1.2 The variability of the AC Gauge is determined from the slope of the correlation curve and the standard deviation of the count rate. Variability is calculated as follows: v = The nuclear asphalt content gauge can be used for evaluating the asphalt cement content in many types of bituminous mixtures, including: 1. Hot mix (surface and binder). 2. Recycled asphalt pavement (RAP). 3. Surface treatments. 4. Material containing asphalt additives and modifiers. Several states … Meer weergeven About 93 percent of the 3.4 million kilometers of paved roads in the United States are asphalt, and accurate monitoring of the asphalt cement content of these roads … Meer weergeven The direct tests for determining asphalt content are classified as chemical techniques and are commonly known as solvent … Meer weergeven Currently, there are three gauges on the market for determining the asphalt content. Two are made by Troxler Corporation, Models 3241-C and 3242, and one by CPN Inc., Model AC-2. The other nuclear … Meer weergeven The traditional, direct test methods represent a macroscopic evaluation of the asphalt contribution to a mix. These methods compute the asphalt cement content based … Meer weergeven
Compaction Control of Crushed Concrete and Recycled Asphalt …
http://publications.iowa.gov/19945/1/IADOT_mlr_87_02_Calibration_Reliability_Nuclear_Asphalt_Content_Gauge_1987.pdf WebThe nuclear gauge determines moisture by releasing “fast” neutrons that are slowed down, or thermalized, when they interact with the nucleus of hydrogen, a key ingredient of moisture. The Helium 3 tubes in the gauge can only detect “slow” neutrons. It is a very direct relationship, more counts = more moisture. how do you spell supposably
ARDOT 461 - Nuclear Density Gauge - Asphalt Field …
WebNon Nuclear Asphalt Density Gauge ₹ 12.36 Lakh/ Number Get Latest Price Brand: Trans-Tech Depth Range: 300 mm Measurement Area: Pavement and Soil Parameters: Density , Moisture and % of Compaction Temperature: up to 75C read more... C Tech Instruments Ahmedabad TrustSEAL Verified Company Video View Mobile Number … Webnuclear asphalt content gauge, with a testing time of approximately 20 minutes, only 60-80 tons of mix will have been produced before corrections are made. Use of the nuclear gauge will provide another benefit. It will eliminate the problem of storage, handling and disposal of solvents. A nuclear densometer is used on a compacted base to establish its percentage of compaction. Before field tests are performed, the technician performs a calibration on the gauge which records the 'standard count' of the machine. Standard counts are the amount of radiation released by the two nuclear sources inside the machine, with no loss or leakage. This allows the machine … how do you spell superiority