Asphalt Mixtures Theoretical Maximum Specific Gravity Tester for Asphalt Paving Mixtures

• Customization: Available
• After-sales Service: 2 Years
• Warranty: 2 Years
• Model NO.: GD-0711A
• Max Diameter of Workpiece: <500mm
• Mass Scope of Workpiece: <900kg
• Type: Universal Testing Machine
• Maxcapacity: <1000KN
• Accuracy Grade: 0.5
• Load Way: Mechanical Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: 100-500Kg
• Power Source: AC220V
• Oil Cylinder Position: Under
• ASTM D2041 Test Equipment: Test Theoretical Maximum Specific Gravity
• Application: Bituminous Mixtures
• Working Power: AC(220+-10%)V, 50Hz
• Volume of Vessel: 4000mlx2
• Power of Vacuum Pump: 160W
• Negative Pressure: 3.7 Kpa (27.75mmhg)
• Power of Shaking Machine: 30W
• Transport Package: Wooden Case or Plywood
• Origin: China
• HS Code: 9031809090
• Production Capacity: 200PCS/Month

Product Description

Asphalt Mixtures Theoretical Maximum Specific Gravity Tester for Asphalt Paving Mixtures


The Theoretical Maximum Specific Gravity Tester is designed and made as per T 0711-2011 and ASTM D2041 Standard Test Method for Theoretical Maximum Specific Gravity of Bituminous Mixtures(Vacuum process) in JTG E20-2011.
The instrument is suitable to determine the theoretical maximum specific gravity of bituminous mixtures by vacuum process. It is used to design the ratio of bituminous mixtures, survey the road condition or calculate the void ratio and compactness of road construction.
Theoretical Maximum Specific Gravity Tester is not available to determine the lacunose bituminous mixtures which water absorption overs 3%.

The theoretical maximum specific gravity testing machine for asphalt mixtures is a professional instrument used to determine the theoretical maximum relative density of asphalt mixtures. In the field of road engineering, the theoretical maximum relative density of asphalt mixture is a key parameter, which is crucial for calculating volume indicators such as void ratio and mineral aggregate void ratio of asphalt mixture. These indicators directly affect the performance of asphalt pavement, such as durability, impermeability, and bearing capacity. By accurately measuring the theoretical maximum relative density, the mix design of asphalt mixture can be optimized, and it plays an important supporting role in the quality control and performance evaluation of asphalt pavement.

Principle

Mainly based on the principle of vacuum method. Treating the mineral aggregate and asphalt of asphalt mixture as a whole, under vacuum conditions, the air in the mixture is expelled as much as possible, and then the voids are filled with a liquid of known density (such as trichloroethylene or other suitable solvents). According to Archimedes' principle, the theoretical maximum relative density of asphalt mixture is calculated by measuring the mass of the mixture in air, the mass in liquid, and the density of the liquid.

Features

1. The Theoretical Maximum Specific Gravity Tester adopts single chip machine technology to vacuumize, shake, fill air and relieve pressure automatically.
2. Equipped with a high-accuracy absolute pressure sensor, the negative pressure can reach 3.7 kPa±0.3 kPa.
3. The working status of the vacuum pump can be reflected by a vacuum meter.
4. It equips a water buffer device to prevent the water in the negative pressure container from flowing into the vacuum pump.
5. It can determine two samples at the same time.Test efficiency is high.The structure is reasonably designed. It is easy to use.

Specifications

1	Power supply	AC(220±10%)V, 50Hz.
2	Volume of vessel	4000ml×2
3	Power of vacuum pump	160W
4	Negative pressure	3.7 kPa(27.75mmHg).   Allowable bias is ±0.3 kPa.
5	Power of shaking machine	30W
6	Dimension	510mm×520mm×380mm

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