SYD-0705 The density tester of compacted asphalt mixture is based on the industry standard of the People's Republic of China JTG E20-2011《 In the test procedures for asphalt and asphalt mixtures for highway engineering T 0705-2011《 The density test of compacted asphalt mixture (Table Dry Method) is the main basis, taking into account both T 0706-2011《 Test of compacted asphalt mixture density (water weight method) and T 0707-2011《 Designed and manufactured as required by the compacted asphalt mixture density test (wax sealing method).

This instrument is suitable for:
 1、according to T 0705 Standard, the relative density and volume density of various asphalt mixture specimens with water absorption rate not more than 2% were determined by the surface dry method.
 2、according to T 0706 Standard, the apparent relative density or apparent density of dense asphalt mixture specimens with water absorption rate less than 0.5% was determined by water weight method.
 3、according to T 0707 Standard, the relative volume density and volume density of asphalt concrete or asphalt gravel mixture specimens with water absorption rate greater than 2% were determined by wax sealing method.
 4、The balance configured by this instrument can also be used to press T 0708 The standard stipulates that the air mass of the dry specimens is required to weigh the air mass, and then calculate the relative density and the bulk density of the specimens measured by the volume method.

1. Main technical characteristics
 1、This instrument is multi-purpose and can meet the industry standards of the People's Republic of China at the same time JTG E20-2011《 The test regulations for asphalt and asphalt mixtures in the highway engineering project are required by the dry method, the weight method in water, the wax seal method and the volume method for weighing the sample, and then the corresponding density or relative density is calculated.
 2、This instrument uses a microcomputer to control the water bath temperature, which is convenient to operate, simple and reliable.
 3、The electrical control box of this instrument adopts a removable structure, and the electrical control box is connected to the circuits such as water bath temperature control, water tank level control, and water bath circulation and stirring through an aviation plug and socket.
 4、This instrument adopts high-precision electronic balance, with a large measurement range, high measurement accuracy, and stable and reliable operation.
 5、The overflow water tank of this instrument is made of stainless steel, which is durable, easy to clean, and can automatically replenish and stabilize the water level of the working water tank for easy operation.
 6、This instrument adopts an electric lifting mechanism, and the motor adopts a new push rod motor, which works smoothly and has low noise. It can effectively reduce the work intensity of the experimenter.
 7、The instrument table is made of natural marble material, which is beautiful and practical, providing a stable working platform for electronic balances.

2. Main technical parameters and indicators