This instrument is a multi-purpose asphalt tester integrating asphalt ductility, asphalt force ductility, and asphalt elastic recovery ability testing.  

  This instrument is designed and manufactured according to the following standards: 

1、GB/T 4508-2010《 Asphalt ductility determination method《, JTG E20-2011《 In the test procedures for asphalt and asphalt mixtures for highway engineering T 0605-2011《 Asphalt delta test；  

2、NB/SH/T 0814-2010《 Test method for measuring force and delta of asphalt material；  

3、NB/SH/T 0737-2014《 Asphalt elastic recovery determination method (delay meter method) and JTG E20-2011《 In the test procedures for asphalt and asphalt mixtures for highway engineering T 0662-2000《 Asphalt elastic recovery test》.  

1. Main technical characteristics 

1、Use 8 inches TFT color LCD color Touch screen, the operating interface language can be selected in Chinese and English (can be selected when purchasing).  

2、32Bit ARM Microcontroller controls, automatically controls the water bath temperature, and automatically collects and processes stretching and tensioning data.  

3、With a computer RS232 The communication interface can easily communicate with the computer and can be upgraded to realize network communication (user customization).  

4、The novel tensile transmission design adopts a combination of imported screws and guide rails. The stretching process is smooth and synchronous, without jitter, uniform speed, and accurate display of radial and tension.  

5、It adopts a high-power compression mechanism to cool, a strong magnetic circulation pump circulates the bath liquid, fast cooling speed and uniform bath temperature.  

6、The average ductility value, maximum tension force, elongation deformation value at maximum tension, elastic recovery test data, etc. are automatically calculated and displayed.  

7、Store 100 sets of historical data for easy query； It has fault self-test function, which is convenient for instrument use and maintenance.  

8、With needle micro printer, automatic printing of test results.  

9、The wireless remote control has a long control distance, making it more convenient to operate.  

2. Main technical indicators and parameters 

1、Working power supply:       AC（220±10%）V、50Hz。 

2、Measurement range: 1.5 m(±10mm)。 

3、Heating method: Electric heater heating.  

4、Bath liquid circulation: Strong magnetic circulation pump circulates the bath liquid.  

5、Temperature control range: 5 ℃～50℃Adjustable, digital display, temperature display resolution 0.01 ℃。 

6、Temperature control accuracy:       ±0.1℃。 

7、Stretching speed: 10 mm/min、50mm/min Two gears.  

8、Measurement accuracy:       ±1mm。 

9、Delay display: The display screen displays in real time.  

10、Delay record:       ⑴ Recording via wireless delay recorder (remote control)；  

⑵ "Delay Record 1" through the touch screen /2/3”Key record.  

11、Force measurement range:       (0～300)N。 

12、Force measurement accuracy:       ±1N。 

13、Data output:       ⑴ RS232 The interface communicates with the computer.  

               ⑵ Printout by micro printer.  

14、Refrigeration form: Compressor cooling.  

15、Ambient temperature: -10 ℃～+35℃。 

16、Relative humidity:       ≤85%。 

17、Dimensions: 2365 ㎜×530㎜×950㎜（long ×Width ×high).  

18、Power consumption of the whole machine: not more than 4100 W。