CONCRETE BREAKING - METHODS FOR REDUCING NOISE AND VIBRATION

This paper outlines new legislation concerning noise from construction and demolition works and describes methods by which noise can be reduced. Sound levels produced by various types of plant are tabulated. Recent work at BRE has shown that it may be possible to reduce noise from a 36 kg pneumatic breaker to a peak reading of 82 dbNa) at a distance of 7 M. Thermic boring is a quiet and vibration free method of cutting reinforced concrete or substantial brick structures. Structural-borne noise from diamond tools can be up to 25 db(a) less than that produced by percussive tools. Hydraulic bursters or jacks can be used for secondary breaking of concrete, substantial brick structures or foundations. A concrete breaking attachment for 360 degree hydraulic excavator known as the nibbler is illustrated. The nibbler snaps concrete of up to 375 mm thickness by a bending movement. Its production rate of 100 m2/h makes it suitable for breaking concrete roadways. /TRRL/

• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Authors:
  • Musannif, AAB
• Publication Date: 1976-10-22

Language

• English

Media Info

• Features: Photos; References; Tables;
• Pagination: p. 21-23
• Serial:
  • Surveyor - Public Authority Technology
  • Volume: 148
  • Issue Number: 4403
  • Publisher: IPC Building and Contract Journals Limited

Subject/Index Terms

• TRT Terms: Boring; Concrete construction; Construction equipment; Equipment; Excavating equipment; Fracture mechanics; Hydraulic jacks; Legislation; Machinery; Noise control; Pneumatic equipment; Sound; Sound level; Tools; Tunneling machines; Vibration
• Uncontrolled Terms: Breaking up
• Geographic Terms: United Kingdom
• Old TRIS Terms: Pneumatic tools
• ITRD Terms: 3604: Breaking up; 3674: Equipment; 1556: Legislation; 6748: Sound; 6747: Sound level; 8119: United Kingdom
• Subject Areas: Construction; Highways; Law; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 00149038
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Jun 17 1977 12:00AM