Specific Gravity Tester LSGT-A10

Specific Gravity Tester LSGT-A10 determines the theoretical maximum specific gravity of bituminous mixtures in accordance to ASTM D2041 Standard Test Method for Theoretical Maximum Specific Gravity of Bituminous Mixtures (Vacuum process). Adopted with single chip machine technology to shake a loose asphalt mixture sample submerged in water. Vacuum is applied into the sample, to extract out the air bubble.

Vessel Volume  4000 ml × 2
Power of Vacuum pump 160 W
Negative power 3.7 kPa(27.75 mmHg)
Power of shaking machine 30 W
Power supply AC(220±10%)V, 50Hz
Dimension 510×520×380 mm
  • High test efficiency
  • Test 2 samples at one time
  • Adopts single chip machine technology
  • Equipped with a high-accuracy absolute pressure sensor
  • Vacuum meter showing working status of vacuum pump
  • Water buffer device preventing water flow from negative pressure container into the vacuum pump
No. Name
1 Constant temperature water bath

Suitable for measuring theoretical specific gravity of bituminous mixtures. Can also be used for the calculation of the percent of air voids in compacted bituminous mixtures and the amount of bitumen absorbed by the aggregates.

Experimental temperature range -50 to 70°C
Test sample volume 50 ml
Ambient temperature range 10 to 40°C
Humidity ≤ 85%
Penetrometer
Measurement range 0 to 600 penetration scale
Timing controller 5 sec or 60 sec
Time accuracy ± 0.1 seconds
Resolution 0.1 penetration
Penetration accuracy ± 1 penetration
Weight of standard needle 2.5 ± 0.05 g
Dimensions (W × L × H) 700 × 400 × 750 mm
Weight 30 kg
Circulatory Water Bath
Bath volume 3.5 L
Temperature range 5 °C to 60 °C
Temperature accuracy ± 0.1 °C
Circulatory water quantity 3 L/minute
Pump Lift 2 m
Power consumption 1200 W
Power supply AC 220V ± 10 %, 50 Hz
Dimensions (W × L × H) 600 × 400 × 650 mm
Weight 40 kg
Measurement range 0 to 600 penetration scale
Timing controller 5 sec, 8 sec, 10 sec, 12 sec, 30 sec and 60 sec
Time accuracy ± 0.1 seconds
Resolution 0.01 mm
Measurement range 0 to 600 penetration scale
Timing controller 5 sec or 60 sec
Time accuracy ± 0.1 seconds
Resolution 0.01 mm
Potential measuring range (0 to ±1999.5) Mv
Intrinsic error 0.1 % ±0.5 mV
Input impedance Ri ≥1 × 1012 Ω
Burette capacity 10 mL
Ambient Temperature 10 ℃ ~ 40 ℃
Relative Humidity ≤ 85 %
Temperature Measurement- Full Scale Ambient temperature to ~ 400 ℃
Temperature Measurement- Repeatability ≤ 4 ℃
Thermometer 0 ℃ ~ 360 °C
Scale Division 1 °C
Ambient Temperature ≤ 35 °C
Relative Humidity ≤ 85 %
Thermometer 6 ℃ ~ 400 ℃
Scale Division 2 °C
Spout Aperture 0.6 ~ 0.8 mm
Ambient Temperature -10 ℃ ~ 50 ℃
Ambient Temperature 10°C to 35°C
Measurement Range 0 to 100 mg
Resolution 0.1 µg
Max. Electrolysis Speed 40 µg /s
Ambient Temperature Range ≤ 35°C
Relative Humidity ≤ 85%
Heating Mantle Cap Power 1000 W
Sample Determination 1 at a time
Ambient Temperature Range ≤ 35°C
Relative Humidity ≤ 85%
Heating Mantle Cap Power 1000 W × 2
Sample Determination 2 at a time