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| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
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A34 Bitumen Bending Creep Testing Asphalt Mixtures BBR Bending Beam Rheometer Tester
Standard: ASTM D6648
ApplicationsAsphalt binder testDimensions, in (mm) WxDxH49x49x41in (1,245x1,245x1,040mm) LxWxHEstimated Shipping Weight, lb
(kg)487lbs (221kg)
HM-59 and HM-73 Bending Beam Rheometers (BBR) by ATS measure the flexural creep stiffness of asphalt binder from ambient to -40°C to predict low-temperature thermal cracking of asphalt pavements. Special molds form small beam samples of binder for testing, and deflection of the beam is recorded as a constant load is applied. Load, displacement and bath temperature are displayed in real time via tabular and graphic forms.
Both models use an air bearing system to assure reliable loading with accurate and repeatable results. A linear variable
displacement transducer (LVDT) with a range of 6.35mm and accuracy to ±2µm measures deflection. The stainless steel three-point bend apparatus is easily removed and reinstalled in the base unit for convenient sample preparation and loading.
A fluid bath controls temperature of the Ethylene Glycol/Water/Methanol mixture down to -40°C (-40°F). Process temperature is controlled by two independent platinum RTD temperature transducers to maintain stability. Both models fully comply with ASTM/AASHTO requirements. A source of clean, dry, compressed air at 50 PSIG minimum must be provided by the user.
Models come with five aluminum specimen Molds with mylar strips, a Calibration Kit with required weights, and Confidence Beam.
Calibrated test weights and a certified LVDT NIST-traceable standard are also provided.
HM-59 ATS Bending Beam Rheometer uses a desktop computer with pre-loaded control, acquisition and analysis software for precise operation. Safe, rapid cooling of the test fluid is provided by the mechanical refrigeration system.
HM-73 ATS Touch Screen Bending Beam Rheometer retains all of the performance features of the HM-59, but incorporates a state-of-the-art touch-screen design for easy set up and operation. The touch-screen controller has walk through menus for guidance and the machine can be started, stopped and monitored remotely through an App installed on a smartphone, iPad, or tablet.
The user-friendly control, acquisition and analysis software is preloaded on the internal computer and allows daily verification and periodic calibration of load cell, LVDT, and RTD transducers. A USB port is located on the front of the unit for software upgrades and data storage. The fluid bath is chilled by a thermoelectric cooling system.
Features:
Both models are fully compliant with ASTM and AASHTO requirements
Optimal solution for predicting low-temperature thermal cracking of asphalt pavements via flexural creep stiffness measurements
Air bearing systems ensure repeatable results and reliable loading
Fluid baths accurately control temperature of the Ethylene Glycol/Water/Methanol mixture down to -40°C (-40°F)
Included Items:
HM-59 ATS Bending Beam Rheometer with pre-loaded computer OR
HM-73 ATS Touch Screen Bending Beam Rheometer
Accessories Included With Both Models:
Five aluminum specimen molds with mylar strips
Calibration Kit with required weights and Confidence Beam
Calibrated test weights
Certified LVDT NIST-traceable standard
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Parameter Names
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Details
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Cylinder Pressure
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1MPa
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Specimen loading load
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0 ~ 3000 mN
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Cylinder stroke
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200 mm
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displacement sensor range
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20 mm 3 ‰ Precision FS
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Temperature Control Range
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- 20 ~ 60 ºC accuracy of 0.1 ºC
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Specimen size
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Lenghth 127 mm * thickness 6.35 mm * width 12.7 mm
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Environment cabinet internal dimension
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length 300 mm * 270 mm * wideth 270 mm * height 300
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Boundary Dimension
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Length 500 mm *width 700 mm * height700 mm
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Refrigeration power
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1.5 P |
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Heating power
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800 w
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Power supply voltage
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220 V
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Silent air compressor(built-in)
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1 KW, 220 V
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Xi 'an Zealchon electronic technology co., LTD, located in new technology industry development zone in Xi'an, an ancient city in China. It covers an area of 7500 square meters of building area. Zealchen specialize in civil engineering research and experimental apparatus; another is the semiconductor laser research and development.On one hand, currently based on civil experimental instrument research, the research team is founded by the personnel who come from Chang 'an university, Xi 'an polytechnic university, Xi 'an petroleum university, which has the top technology in this expertise. In addition, its research and development has accomplished a series of leading domestic and international standards, first-class technology of asphalt and asphalt mixture, road, bridge deck, geotechnical, structural testing instruments, even more, some of the products fill the blank of similar equipment at home and abroad, won national, ministerial, provincial awards.
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