Asphaltanalysator for extraction and binder determination of bituminous materials within a closed system using non-inflammable solvents. Bituminous materials (up to 3.5 kg) is weighed into a sieve drum (20-1110…), placed into the washing chamber and then automatically washed by means of solvents and ultrasonic. The number of 2 up to 19 washing cycles can be preselected depending on the type of material. Minerals are left in the sieve drum whereas binder, solvents and fillers are washed out and separated in the connected centrifuge. Filler is retained in the centrifuge cup 20-0330 resp. 20-0335 whereas binder and solvent are separated in the connected recovery still by distillation. Solvents are reused. After washing out, the minerals and fillers are dried automatically, and after completion of the program the process can be continued with sieve analysis. Main advantages of this machine are the quick extraction time of approx. 35 to 45 minutes including drying and the considerably reduced ecological damage because of solvent loss < 20 ml per extraction. For operation washing drums and covers 20-1106.. as well as centrifuge cups 20-0330.. are required in addition.
Solvent: stabilised Trichloroethylene HI-TRI-SMG of DOW Chemicals