Intelligent Compaction rollers are used in compaction of hot mix asphalt for breakdown and intermediate compaction for method compaction process and for density required HMA. The current nssp 39-8 requires use of steel drum vibratory roller equipped with GPS, temperature sensor, accelerometer data acquisition system and displays.

The normal core body temperature of a healthy, resting adult human being is stated to be at 98.6 degrees fahrenheit or 37.0 degrees celsius. Though the body temperature measured on an individual can vary, a healthy human body can maintain a fairly consistent body temperature that is around the mark of 37.0 degrees celsius. HOT MIX ASPHALT, HMA, PAVEMENT 401.01 Description This work shall consist of one or more courses of QC/QA HMA base, intermediate, or surface mixtures constructed on prepared foundations in accordance with 105.03. 401.02 Quality Control 10 The HMA shall be supplied from a certified HMA plant in accordance with The US DOT states “Do not place HMA on any wet surface or when surface temperature is below 40º F.” Furthermore, HMA is labor and equipment intensive; it must be installed quickly and at a high-enough temperature for the repair to be effective. The window of opportunity is therefore very narrow for a HMA repair. PM, applying a chip seal is not recommended because the temperature will fall after sunset. 8. Q) How does ADT affect seal coat design and is there a maximum ADT on a roadway to be considered for seal coating? A) ADT affects chip seal design in the following way: as the ADT goes up, the chip seal needs less asphalt binder. If your 2-year-old child's oral temperature is 101°F (38.3°C), his or her rectal or ear temperature may be about 102°F (38.9°C). Remember, a child has a fever when his or her temperature is 100.4°F (38°C) or higher, measured rectally. If your axillary temperature is 100°F (37.8°C), your oral temperature is about 101°F (38.3°C).

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1. Surface Temperature. Place HMA mixture only when the pavement surface temperature is equal to or greater than those specified in Table 402-1 Temperature Requirements. TABLE 402-1 TEMPERATURE REQUIREMENTS Nominal Compacted Lift Thickness Surface Temperature Minimum ≤ 1 in 50°F 1 in < Thickness ≤ 3 in 45°F > 3 in 40°F 2. temperature equal to the mixture's compaction temperature ± 5°F (± 3°C). (Note: The compaction temperature range of an HMA mixture is defined as the range of temperatures where the unaged binder has a kinematic viscosity of approximately 0.28 ± 0.03 pa-s (280 ± 30 mm 2/s) measured in accordance with ASTM D 4402. Mixture and the typical HMA pay item is the Performance Graded binder. For High Stress Mixtures, increase the high temperature binder by one grade and add the polymer. The increase in the high temperature number results in an asphalt binder with improved high temperature stiffness or rutting resistance for both the leveling and top course. Jan 16, 2017 · When placing HMA, ensure that the mix temperature is a minimum of 290° F at the mid-depth of the mat behind the screed when the compaction process begins. Related Why Tracking Temperatures is Key

Hot melt adhesive (HMA), also known as hot glue, is a form of thermoplastic adhesive that is commonly sold as solid cylindrical sticks of various diameters designed to be applied using a hot glue gun.

It is generally medically accepted that normal body temperature ranges between 36.5°C (97.7°F) to 37.5°C (99.5°F). Fever is indicated when human body temperature rises about one degree, or more, over the normal temperature of 37.0 degrees Celsius (98.6 degrees Fahrenheit). Thermometers & Temperature Measurement - HMA Lab Supply specializes in laboratory equipment and supplies for the asphalt and aggregate testing industry and has been in operation for over 20 years. size of the unit. HMA is deposited from an end-dump or live-bottom truck into the hopper on the front of the vehicle, which may be equipped with a remixing auger or augers. The purpose of the auger system is to reblend the coarse and fine particles of the HMA and reduce any segregation and temperature variation that may have a hot mix asphalt (HMA) pavement together. It is a viscoelastic material, meaning that it displays both viscous (fluid-like) and elastic (solid-like) charac-teristics. These characteristics are largely temperature dependent, as asphalt cement behaves more like a solid at low temperatures, and more like a liquid at high temperatures.