STEEL FIBRE CONCRETE LAYER TO REPLACE BLACKTOP CARPET

THIS BRIEF REPORT REFERS TO THE FULL SCALE EXPERIMENT ON THE M1O OF THE TRANSPORT, AND ROAD RESEARCH LABORATORY. A LENGTH OF STEEL FIBRE REINFORCED CONCRETE IS BEING LAID ON TOP OF EXISTING CONCRETE ROAD SLABS. IT IS CUSTOMARY TO OVERLAY OR CARPET A CONCRETE ROAD IN NEED OF STRENGTHENING WITH A BITUMINOUS LAYERS, BUT THE HIGH COST OF BITUMEN HAS ENCOURAGED THE TRRL INTO ACCELERATED TESTING OF THIN CONCRETE OVERLAYS REINFORCED WITH STEEL FIBRES. FIELD TESTS HAVE SHOWN THAT THIS MATERIAL'S CONCRETE PROPERTIES SHOW IMPROVED FLEXURAL AND SHEAR STRENGTH THEREBY ALLOWING THINNER LAYERS OF MATERIAL TO BE USED. THE M10 EXPERIMENT IS SPLIT INTO 16 SECTIONS, EIGHT ON THE NEARSIDE LANE AND EIGHT ON THE ADJACENT OFFSIDE LANE. IN EACH LANE 4 SECTIONS ARE OF 80 MM THICK OVERLAY AND THE OTHER FOUR ARE 60 MM THICK. FOR EACH THICKNESS 1,2 AND 3 PERCENT STEEL CONTENT IS BEING TRIED BOTH AS BONDED AND UNBONDED OVERLAY.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03077683
• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • WALKER, M
• Publication Date: 1974-5-16

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 14-15
• Serial:
  • NEW CIVIL ENGINEER
  • Issue Number: 92
  • Publisher: EMAP CONSTRUCT LIMITED
  • ISSN: 0307-7683

Subject/Index Terms

• TRT Terms: Bonds; Concrete; Deflection; Fiber reinforced concrete; Fibers; Freeways; Pavement overlays; Reinforced concrete; Shear strength; Slabs; Steel; Strength of materials; Structural strengthening; Surfacing; Test sections; Tests; Thickness
• Uncontrolled Terms: Carpets
• Geographic Terms: United Kingdom
• ITRD Terms: 2994: Carpet; 4755: Concrete; 5586: Deflection; 4557: Fibre; 2752: Motorway; 4794: Reinforced concrete; 5531: Shear; 3491: Slab; 4542: Steel; 5544: Strength (mater); 3096: Strengthening (pavement); 2972: Surfacing; 6255: Test; 8119: United Kingdom
• Subject Areas: Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00083373
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: May 1 1975 12:00AM