Asphalt specimen core machine

This instrument is designed to obtain high-quality round core-shaped specimens of asphalt mixtures in accordance with the requirements for asphalt mixture specimens in the People’s Republic of China industry standard JTG E20-2011 "Highway Engineering Asphalt and Asphalt Mixture Test Regulations" Coring machine manufactured. This instrument is designed with a special fixture for coring asphalt mixture specimens, which can drill accurate asphalt mixture core specimens for asphalt production companies, highways, bridge construction units, and related universities, scientific research institutes and other laboratories. .

This instrument is compact in structure, small in size, small in area, saving laboratory space, diverse in coring specifications, and convenient to operate. It is a multifunctional coring instrument for asphalt mixtures selected by related units and departments.

Main technical features

1. It can drill core samples of round specimens required for indirect tensile, semicircular bending, Overlay (crack resistance test), DCT (fatigue test), SST (shear test), dynamic modulus test, etc.

2. The horizontal fixing fixture for cylindrical core samples can directly drill core samples with different diameters of 38mm, 50mm and 75mm.

3. The cylindrical core sample is fixed vertically, and the core sample of φ100mm can be drilled from the rotating compaction test piece of φ150mm.

4. Beam-type specimen fixing fixture, which can fix the maximum size of the specimen to 450×180mm, and then drill core samples of various specifications.

5. Vertically liftable guide rail, electric motor and handle for manually controlling the feed of the drill bit. The bottom support has a guide rail. The sample holding device can move along the guide rail and can be taken multiple times at different positions of the test piece. core.

6. The transparent protective cover can prevent the cooling water and waste mixture from splashing during the core drilling process, ensuring personal safety and laboratory cleanliness.

Main technical parameters and indicators

1. Power supply: AC220V, 50Hz, 10A, single phase, power: 2200W

2. The core speed: 540rpm, 1300rpm and 1800rpm three gears, the speed is adjustable.

3. Beam-type specimen fixing fixture: the maximum size of the specimen can be fixed 450×180mm.

4. Cylinder core sample transverse fixing fixture: It can fix the size of the test piece Φ100mm or 150mm, the length is 300mm, and the running distance can be 80mm.

5. Cylinder core sample vertical fixing fixture: the size of the test piece can be fixed from Φ50mm to 150mm.

6. Cylindrical gasket: used for core-like drilling cores with a height shorter than 120mm.

Attached-drill bit selection (factory standard 100mm, other models optional)

1. Diamond drill bit with inner diameter of 150mm and length of 450mm

2. Diamond drill bit with inner diameter 100mm, length 450mm (standard configuration)

3. Diamond drill bit with inner diameter 75mm, length 450mm

4. Diamond drill bit with inner diameter 50mm, length 450mm

5. Diamond drill bit with inner diameter 38mm, length 450mm