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%
Evaporation bath type and size Aluminum bath φ260 × 130 mm
Holes for testing 5 pieces
Size of holes for testing cylinder φ51 × 70 mm
Working temperature 160 ℃ ~ 165℃
Evaporation bath type and size Aluminum block bath, φ260 × 130 mm
Holes for testing 3 pieces
Size of holes for testing cylinder φ51 × 70 mm
Flow rate display Flow meter
Bath type Oil bath
Bath capacity 5000 ml ± 50 ml
Ambient temperature Room temperature to 35 °C
Relative humidity ≤ 85 %
Temperature controlling accuracy ≤ 0.5 ℃
Temperature controlling range Room temperature ~ 200 ℃
Power supply for illumination 5 V
Power of motor 2 kW
Measurement range Room temperature ~ 150°C
Stirring speed 0 ~ 1200 r / min
Heating power 25 W
Interior Dimension 360 × 250 × 545 mm
Cubage of bath Ф300 × 380 mm
Temperature controlling range 0 °C ~ 100 °C
Temperature controlling accuracy ± 0.2 °C
Temperature sensor Industrial platinum resistance, Pt100
Graduated Flask 200 ± 0.2 ml
Standard Water Value 51 ± 1 s
Temperature Range 0 ~ 100 °C
Temperature Controlling Accuracy ± 0.2 °C
Graduated Flask 200 ± 0.2 ml (50 ± 0.2 ml for bituminous materials)
Standard Water Value 51 ± 1 s
Temperature Range 0 ~ 100 °C
Ambient Temperature 10 °C ~ 40 °C
Graduated Flask 100 ml
Standard Water Value 51 ± 1 s
Temperature Range 0 ~ 100 °C
Temperature Controlling Accuracy ± 0.1 °C