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Pavement Quality Indicator

Select Item: $8,200.00 HM-598  Pavement Quality Indicator Specify Quantity:     HMA-691 PQI Test Block for H... ($1,000.00)     Estimated Shipping Weight: 16.0 pounds   7.3 kilograms Test Methods AASHTO TP-68 ASTM D 7113 Recent Items Pavement Quality Indicator Banner Extractor, 1500g-Motorized, 115V Marshall Load Frame, Stability,115V/60Hz Cox Rolling Thin Film Oven, 230V/60Hz Economy Vacuum/Pressure Pump, 115V/60Hz

HM-598 pictured

HM-598

The Pavement Quality Indicator (PQI) produces fast, accurate and repeatable in-place density and temperature measurements of asphalt pavement. Instantaneous density and temperature readings help field personnel establish more effective roller patterns and ensure pavement densities are within targeted range. It quickly identifies tender zones and segregated areas, rapidly profiles densities in critical areas such as wheel paths, longitudinal joints, and unconfined edges, and evaluates pavement sections for coring. The PQI is particularly effective on projects that require rapid gathering of results for QC/QA analysis. The results are displayed within seconds. Up to 99 readings can be stored by station, location, date and time for later downloading to user's PC or laptop.

The PQI uses low level, low frequency, electrical impedance technology and is completely nonnuclear. It utilizes an innovative toroidal electrical sensing field created within the asphalt pavement to monitor changes in electrical impedance. Measuring depth is about 1-4in (25-100mm). Pavement densities in selectable pounds per cubic foot or kilograms per cubic meter are shown on the four line, backlit display. Readings of percent air voids are also possible. Accurate density measurements are obtained without the need for expensive nuclear gauge training and certification. There is no need to be concerned about radiation safety monitoring or cumbersome regulations. Warm-up time is not necessary and test results are nearly instantaneous. Significantly lighter weight makes prolonged use of the PQI more convenient for field personnel.

The HM-598 PQI includes a 12V DC, 4 amp/hour NiMH battery. Battery recharge time is approximately four hours. Continuous operational time of fully charged battery is 13 hours. HMA-691 PQI Test Block confirms internal electrical calibration, repeatability and checks for instrument drift. The Test Block can also perform a two-point calibration with asphalt cores. HM-598 includes fast charge 120VAC battery charger, 12V DC adapter and shipping case.