![]() Using the two non-nuclear density gauges would have resulted in 100% overall pay. (4) If pay factors were determined from gauge densities, then using the densities provided by the TMTL gauge would have resulted in a 5% reduction in overall pay for lane densities. The overlap for the TMTL was 83% and for the KTC PQI was 78%. The Model 3430 provides the basic features required for determining the density of asphalt, soil, aggregate or concrete and the moisture of soil or aggregate. (3) The density distribution of the HHR PQI gauge most closely matched the distribution of the cores with an 88% overlap in the distributions. Description The Troxler Model 3430 gives you the fast, accurate, and consistent results you need to fulfill the testing requirements on today’s construction projects. However, there was a statistically significant difference between the mean density of the TMTL and KTC PQI and the cores. ![]() (2) There was no significant difference between the mean density of the HHR PQI and the mean density of the cores. Troxler Nuclear Density Meters (NDM) 3430 RoadReader Basic Moisture Density Gauge 3440 RoadReader Advanced Moisture Density Gauge 4640-B Surface Thin Layer. Findings were as follows: (1) The standard deviations of the density readings of all the gauges were greater than the standard deviation of the overall density of the cores, indicating more "scatter" in the data from the gauges than in the core data. Two non-nuclear density gauges, one operated by the contractor (HHR PQI) and the other operated by the research team (KTC PQI), were tested. In order to overcome many of the disadvantages of nuclear density gauge, nonnuclear nondestructive device has been developed as a safer, lighter and more. ![]() The other gauge was the PQI Model 300 non-nuclear density gauge manufactured by Transtech Systems, Inc. The nuclear density gauge was a Troxler, Model 4640-D, thin-layer nuclear density gauge (TMTL). ![]() The objective of this study was to compare a non-nuclear density gauge with a nuclear density gage for quality control on hot mix asphalt paving projects. ![]()
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