Automatic Wheel-Track Tester(One wheel)
Summary
This instrument is designed and made as per industrial standard T0719-2011 Wheel Track Test for Bituminous Materials in JTG E20-2011 Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering. It is used to determine the wheel track resistance property of bituminous mixtures under high temperature condition(Immersed in water or not immersed in water).
I. Main technical features
1. PWM temperature control. It can control ： ⑴Water temperature in chamber during water immersed wheel track test
⑵ Ambient temperature of constant temperature chamber at a time.
2. The constant temperature chamber adopts outside circulatory heating mode. The uniformity and stability is good. No
overshoots.
3. It shows time- displacement curves and time- temperature curves during a test.
4. It equips an absolute temperature sensor. No temperature drift in a long time test.
5. The mechanical structure adopts wheel movement mode.
6. One wheel tester. It can determine both water immersion test or no water immersion test.
II. Main technical specifications
1. Grinding rate： (42±1)times/min (One way)
2. Test wheel movement： 230mm±10mm
3. Rubber hardness： 78±2 at 60℃,international standard
4. Loading device：0.7MPa±0.05Mpa When 60℃ ,adjustable range: 0.5～1.2 Mpa
5.Test sample temperature: 60℃±0.5℃
6.Temperature measuring accuracy: ±0.1℃
7. Displacement measuring range： ±0.01mm
8.Thermostatic bath control range: 40～80）℃（Random set）,accuracy: 1℃
9.Working method: Submerging test and non-flooding test
10.Test sample size: 300mm×300mm×50mm(Standard),
Wheel-Track test to the thickness 30～100mm of the test sample.
11.Temperature measuring channel quantity: 2 roads
12.Test time: 60 minutes～240 minutes
13.Synchronous testing samples:1 piece
14. The number of healthy specimens: 3 pieces
15.Grinding motion mode: Wheel motion
16.Outline dimension: 1520mm×770mm×1510mm(L*W*H)
17.Net weight: 350kg
18:Power supply: AC380V,10A,50Hz，3 phase 4 wire