Ring knife is used to take undisturbed soil is to do the bulk density (soil density), compression, shear and penetration testing is essential as a common instrument.
Mainly used to measure soil compaction
(1) ring cutter used and precautions
Should be used to edge down in the earth kind of cut to avoid skew to cut a vertical uniform force, cutting ring can be used before applying a little Vaseline. After use, cutting ring should be cleaned and coated with some protective oil to prevent rust.
(2) ring cutter calibration
Calibrated at least once a cutting ring, and find its volume and quality.
Ring knife diameter required caliper measurements, and to turn the diameter of at least three different angles, accurate to 0.1mm, maximum difference shall not exceed the standard value of 1% of the average.
Cutting ring need a sense of quality of balance, said the amount was 0.01g, accurate to 0.01g
Stainless steel cutting ring earth
Specification
2003 stainless steel cutting ring Ф70 × 52
1003 stainless steel cutting ring Ф50.46 × 50
50 stainless steel straight-edge cutting ring 61.8 × 20
120 stainless steel cutting ring 61.8 × 40
120 stainless steel cutting ring 61.8 × 40 (with side)
For roads, water and other civil construction material moisture content determination of Turkey.
Earth cutting ring
Ring knife, high diameter 50.46mm × 50mm, capacity 100 cubic centimeters, stainless steel (aluminum upper and lower lid)
Cutting ring, diameter 70mm × high 52mm, volume of 200 cubic centimeters, stainless steel (aluminum upper and lower lid)
Ring knife, high-diameter 100mm × 63.7mm, stainless steel
Ring knife, high diameter 61.8mm × 20mm, stainless steel
Ring knife, high diameter 79.8mm × 20mm, stainless steel
Ring knife handle, high diameter 50.46mm × 50mm, volume 100 cm3, tin-plated cast iron
Ring knife handle, high diameter 70mm × 52mm, volume of 200 cubic centimeters, tin-plated cast iron
Cut soil knife, ring knife with a long 250mm × W 32mm, stainless steel
Scraper knife, ring knife with a long 180mm × W 32mm, stainless steel
Adjust soil knife, ring knife with a long 180mm × W 18mm, stainless steel
Shift .
