Summary

  The instrument is designed and made as per T0703-2011 “Bituminous Mixtures Sample Making Method (Wheel-grind Method)” in the Industry Standard of People’s Republic of China JTG E20-2011 Standard Test Methods for Bitumen and Bituminous Mixtures for Highway Engineering. It is suitable to mill bituminous mixtures to molding .It is also suitable to determine the capacity of the bituminous mixture to resist high temperature track,and the high temperature stability of the bituminous mixtures matching design etc. ,also used to test the physical mechanics characteristics of bituminous mixtures.

  The instrument with mechanical,electrical and pneumatic technology has the characteristics of small volume,high automaticity,strong function,easy operation etc.

I. Main technical features

1.Adopting the touch screen to control and display,the savable work parameters,easy operation and convenient set.

2.Real-time display the work process and related data.

3.Self-diagnostic function,and fault code hint.

4.The wheel-track pressure by pneumatic control:0 to 20 kN,freely adjustable within the range

5. Mold thickness range:(30~100)mm,freely adjustable within the range

6.The clamping structure to install the sample is reliable,safe and convenient.

7.It can set the temperature of the grinding wheel freely according to the test requirement,wide temperature control
   range,high precision,good stability,adopts PWM adjustment method to realize the temperature PID control and real time
   display the current temperature.

8.Two processes to compacting the mold sample.Each step can be completed autotmatically and reduced the operation
   sequence to realize the one-key completion.

9.High precision to control the compaction load,and real-time display the current pressure value during the compacting
   process.

II. Main technical specifications

1.Mill pinion specification :radius is 500mm ,width is 300mm ,

2.Mill pinion compaction load control range :(200~700)/cm (adjustment at random,300N/cm before delivery)

3.Mill pinion compaction load controlling accuracy :+3N/cm ;

4.Mill pinion temperature controlling range : ambient temperature ~200℃

5.Mill pinion temperature controlling accuracy :+5℃ ;

6.Compaction speed: 6 times/min ±0.5time/min

7.Compaction times: software set,default P1 as 4 times,P2 as 12 times

8.Test mode specification :300mm*300mm*(30~100)mm:

9.Outline dimension :1200mm*700mm*2000mm(L*W*H)

10.Total weight :350kg ;

11.Work air source: pressure 0.7Mpa,gas displacement 40L/min

12.Power supply :AC380V,50Hz,3.0kW (three-phase four-wire system ,yellow and green cable as zero line )