DEVICE FOR MAKING LOW-GRADE CONCRETE MIXES Russian patent published in 1998 - IPC

FIELD: construction machinery and equipment. SUBSTANCE: this relates to concrete-mixing machinery used at sites where supports for contact systems of electrified railways are reinstalled properly and fastened. Device is mounted on rail motor trolley and it incorporates container with aggregate materials which are preliminarily moistened. Located in center of container is barrel. By means of flexible working member prepared inside aforesaid barrel is laitance, and aggregate materials are partly mixed there. Final mixing of components is effected after mix is discharged into recess around contact system support by means of poker vibrator. EFFECT: higher efficiency. 3 dwg