hot mix asphalt strain gages
High Temperature, Low Strain, Extended Performance
High Temperature, Low Strain, Extended Performance Capacitive Extensometers (1200°C or 1600°C) – Model 7650A High precision extensometer measures axial strains on specimens at temperatures up to 1600 °C (2900 °F).
Laboratory evaluation of moisture susceptibility of foamed warm mix asphalt
Warm Mix Asphalt (WMA) is a step in that direction. WMA allows the producers of asphalt pavement material to lower the temperatures at which the material is mixed and placed on the road. WMA is mixed and compacted at 50–100 F lower than traditional hot.
Hot Mix Asphalt Strain Gages
More Hot Mix Asphalt Strain Gages images
CiteSeerX — Evaluating the Longitudinal and the Transverse Horizontal Strains at the Bottom of Hot Mix Asphalt
A total of twelve Horizontal Asphalt Strain Gages (HASGs), six gages oriented in longitudinal direction and the other six sensors oriented in transverse direction are installed at the bottom of the asphalt concrete to measure the horizontal strains in both the
Sensor Design and Layout for Airport Asphalt Pavement
5. Strain Gage Responses . Figure 8 shows strain responses for transverse gages for the bonded and delaminated cases, while Figure 9 does the same for longitudinal gages. Transverse gages are affected by lateral wheel traffic, while the LSGs are not so influenced. This is because the gages only register strains along their longer axis.
Seasonal Variations of Pavement Layer Moduli Determined
Seasonal Variations of Pavement Layer Moduli Determined Using In Situ Measurements of Pavement Stress and Strain Lauren J. Swett ... Table 4.1 Hot mix asphalt properties as reported by the Maine DOT ... Table C. 1 Asphalt Tensile Strain Gage Responses to Traffic Loading ...
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This study looks at determining the suitability of waste cooking oil-based asphalt for making Hot Mix Asphalt (HMA), through structural strength testing – rutting and fatigue properties, using the South African Model Mobile Load Tester (MMLS3). Slabs of
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Selected In-Track Applications and Performances of Hot-Mix
Selected In-Track Applications and Performances of Hot-Mix Asphalt Trackbeds Dr. Jerry G. Rose, P.E. Professor of Civil Engineering 261 Raymond Building
High precision extensometer measures axial strains on specimens at temperatures up to 1600 °C (2900 °F). Compatible with materials testing furnaces or induction heating. May be used for strain-controlled, high frequency fatigue tests. Slide mounting system enables mounting to hot specimens in seconds. Gauge Lengths: 12.5 – 25 mm
DETECTING INTERLAYER DELAMINATION IN ASPHALT AIRPORT
DETECTING INTERLAYER DELAMINATION IN ASPHALT AIRPORT PAVEMENTS USING STRAIN GAGE INSTRUMENTATION SYSTEMS A THESIS SUBMITTED TO THE GRADUATE DIVISION OF THE UNIVERSITY OF ... HMA – Hot Mix Asphalt HNL – Honolulu International Airport HST-N – High-Speed Taxiway N
A "BL/BT" sensor measures hot-mix asphalt strain response due to dynamic loads. The Biaxial Strain (BL/BT) sensor consists of four electrical resistance strain gauges embedded in an asphalt mastic mix. Two of the strain gauges within a biaxial strain sensor are orientated in the longitudinal direction (with traffic) and designated as "BL".
IDOT Quality Management Training Program – Lake Land College
The Illinois Department of Transportation (IDOT) is increasing the number of Hot Mix Asphalt and Portland Cement Concrete Quality Management contracts. These contracts require that industry be responsible for sampling, testing and documenting for specification compliance (Quality Control), and IDOT be responsible for random monitoring testing (Quality Assurance).
Measurement of Stress Based Load Transfer Efficiency Using
The strain gages analyzed were within 3 inches (7.6m) ... of P-403 hot-mix asphalt, while on the South side the stabilized base is 6 inches (15.2cm) of P-306 ...
Smart Geosynthetics For Strain Measurements In Asphalt
13 validate new smart geosynthetics for strain measurements. 14 The pavement was composed of two layers: a 8-cm thick Hot Mix Asphalt (HMA) base 15 layer and a 5-cm thick surface layer. Sensors were located at the base layer/platform interface 16 and base layer/surface layer interface.
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(PDF) Effect of Dynamic Aircraft Gear Loads on Asphalt Concrete Strain
Effect of Dynamic Aircraft Gear Loads on Asphalt Concrete Strain Responses Article (PDF Available) ... Cells, and Asphalt Strain Gages 共 ASGs 兲 …
Designed for measuring axial displacements in the simple performance tests prescribed by NCHRP Report 465, and determining dynamic modulus of hot mix asphalt per AASHTO TP062. Gauge Lengths: 70 – 100 mm Measuring Ranges: ±0.5 mm -270 C to
Faculty Directory - Engineering Information Technology
The objective of this study is to assist State Highway Administration (SHA) engineers, technicians, and decision makers in their current effort to explore the use of Ground Penetrating Radar (GPR) in assessing the condition of critical infrastructure components and to identify potential improvements in GPR data analysis.
Predicting Flexible Pavement – My Assignment Tutor
As shown in Figure 4.3 and 4.4, strain gauges were placed at the bottom of the top layer, AC base layer and FRL layer. Dynatest PAST II – AC strain gauges were used in this project. This type of strain gauge is designed for the measurement of strains in asphalt concrete pavements. It is an “H” shaped precision transducer and can measure
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Evaluating the Longitudinal and the Transverse Horizontal
A total of twelve Horizontal Asphalt Strain Gages (HASGs), six gages oriented in longitudinal direction and the other six sensors oriented in transverse direction are installed at the bottom of the asphalt concrete to measure the horizontal strains in both the longitudinal and the transverse directions for real time traffics.
Mechanical characterization of a bituminous mix under
Mechanical characterization of a bituminous mix under quasi-static and high-strain rate loading ... It was observed that the mechanical properties of the hot mix asphalt (HMA) changed significantly under high-strain rate testing. ... Strain gages mounted diametrically opposite on the transmitted bar recorded strain time history of the bar. Post ...
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SHRP Superpave Today
SUPERPAVE 2005 SHRP ASPHALT INSTITUTE Asphalt ... •• Hot Mix Industries ... H-Bar Strain Gage. 0 200 400 600 800 1000 1200 1400 1600 L a
Why Tracking Temperatures is Key to Successful Asphalt Paving
Nov 20, 2019 · Hot mix asphalt is manufactured at temperatures between 270° F and 325° F. Depending on the environmental conditions and the distance from the hot mix plant to the project, hot mix asphalt can ...
FBG Sensors Embedded in Pavement
The standard asphalt strain sensor at the time was an 8-inch long H-Bar gage based on electrical resistance foil strain gages. Micron Optics modified its os3600 gage to mimic the traditional gage and worked with the FAA to install two such gages and two FBG
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