SURFACE DRESSING ON HARD SUBSTRATES:A FULL-SCALE EXPERIMENT TO STUDY THE EFFECT OF AGGREGATE GRADING, A 20 SWANLEY, KENT (1973)

A FULL-SCALE EXPERIMENT WAS BEGUN IN JULY 1973 ON A20 AT SWANLEY, KENT, WITH THE OBJECT OF DETERMINING WHETHER HIGHER LEVELS OF SURFACE TEXTURE AND RESISTANCE TO SKIDDING CAN BE MAINTAINED IN SURFACE DRESSINGS ON HEAVILY TRAFFICKED HIGH-SPEED ROADS WHEN USING TRULY SINGLE-SIZED CHIPPINGS RATHER THAN CHIPPINGS CONFORMING TO THE PRESENT GRADINGS OF BS63: 1971. SIX EXPERIMENTAL SECTIONS, EACH ABOUT 75M LONG, HAVE BEEN LAID USING THREE DIFFERENT GRADINGS OF EACH OF TWO AGGREGATE TYPES. EARLIER EXPERIMENTS ON BITUMINOUS SUBSTRATES HAVE SHOWN THE DEGREE OF EMBEDMENT OF CHIPPINGS TO HAVE MORE EFFECT ON PERFORMANCE THAN VARIATIONS IN GRADING OF THE APPLIED AGGREGATE. FOR THIS REASON A CONCRETE ROAD WHERE NO EMBEDMENT WOULD TAKE PLACE WAS CHOSEN. THE WORK IS COMPLEMENTARY TO A SERIES OF FULL-SCALE EXPERIMENTS PLANNED FOR LESS HEAVILY TRAFFICKED ROADS BY THE BRITISH STANDARDS INSTITUTION'S COMMITTEE RESPONSIBLE FOR THE AMENDMENT OF BS63. /AUTHOR/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • WRIGHT, N
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Aggregates; Chippings; Durability; Experimental roads; Grain size (Geology); Rigid pavements; Seal coats; Skid resistance; Substrates (Waterways); Surfacing; Tearing; Texture
• Uncontrolled Terms: Particle size distribution; Substrates
• Geographic Terms: United Kingdom
• ITRD Terms: 4577: Aggregate; 4585: Chippings; 5910: Durability; 2778: Experimental road; 6200: Particle size distribution; 2964: Rigid pavement; 3031: Skid resistance; 2984: Surface dressing; 3053: Surface texture; 8119: United Kingdom
• Subject Areas: Geotechnology; Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials; I36: Aggregates;

Filing Info

• Accession Number: 00081104
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: TRRL SR 50UC Series, A
• Files: ITRD, TRIS
• Created Date: Apr 8 1975 12:00AM