GENERAL HIGHWAY MATTERS - INDIA

IN INDIA, RIGID PAVEMENT DESIGN IS GENERALLY BASED ON WESTERGAARD AND THOMLINSON ANALYSES FOR LOAD AND TEMPERATURE STRESSES RESPECTIVELY, OR ON THE PICKETTS' CORNER FORMULA. WHERE THE NECESSARY TESTING FACILITIES ARE NOT AVAILABLE, AD-HOC THICKNESSES AS TENTATIVELY RECOMMENDED BY THE INDIAN ROADS CONGRESS ARE USED. A NEW METHOD OF DESIGN BASED ON ULTIMATE LOAD THEORY HAS BEEN FORMULATED, AND NEW TYPES OF CONSTRUCTION AIMED AT REDUCING THE PAVEMENT COST, SUCH AS BRICK-SANDWICHED CONCRETE PAVEMENTS, LIME-PUZZOLANA CONCRETE UNDERLAYS FOR CONCRETE PAVEMENTS AND BAMBOO-REINFORCED SOIL CEMENT UNDERLAYS FOR CONCRETE AND FLEXIBLE PAVEMENTS, HAVE BEEN EVOLVED. WHILE THE DESIGN OF FLEXIBLE PAVEMENTS IS BASED ON THE C.B.R. DESIGN CURVES OF ROAD RESEARCH LABORATORY, U.K., THE CURRENT TREND IS TO BASE THE DESIGN ON THE C.B.R. VALUES DETERMINED AT THE WORST EXPECTED MOISTURE CONTENT AS FAR AS POSSIBLE AND NOT AT SATURATION. EMPHASIS HAS BEEN PLACED ON THE USE OF COMPACTED SOIL IN LOWER LAYERS OF THE PAVEMENT, AND MEHRA'S METHOD OF SOIL STABILIZATION HAS BEEN SUCCESSFULLY UTILIZED ON AN INCREASINGLY LARGE SCALE. WORK HAS ALSO BEEN UNDERTAKEN TO ESTABLISH THICKNESS EQUIVALENCY FACTORS FOR DIFFERENT ROAD CONSTRUCTION MATERIALS, BASED ON THEIR LOAD DISPERSION CHARACTERISTICS, AND DETERMINATION OF DESIGN WHEEL LOADS FOR DIFFERENT CATEGORIES OF ROADS. EXPERIMENTAL WORK IS IN PROGRESS, WITH REGARD TO THE PROVISION OF OVERLAYS FOR STRENGTHENING EXISTING THIN CONCRETE PAVEMENTS AND A METHOD OF DESIGN FOR WATERBOUND MACADAM OVERLAYS WITH THIN BITUMINOUS SURFACINGS HAS BEEN EVOLVED FOR ROADS CARRYING MEDIUM TRAFFIC. THE GENERAL ORDER OF RIDING QUALITY ON DIFFERENT TYPES OF ROADS IN INDIA IS ENUMERATED. GENERAL MAINTENANCE PRACTICES ADOPTED IN INDIA ARE DESCRIBED. /AUTHOR/

• Supplemental Notes:
  • No I-8, 14 PP
• Authors:
  • Mehra, S R
• Publication Date: 1967

Media Info

• Serial:
  • Perm Intl Assoc Road Congresses Proc
  • Publisher: Xiiith Congress, Tokyo

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bituminous materials; Breaking loads; Brick; Calcium oxide; California bearing ratio; Concrete pavements; Construction; Costs; Flexible pavements; Moisture content; Overlays (Pavements); Pavement design; Pavement maintenance; Pavements; Paving; Pozzolan; Reinforcement (Engineering); Riding qualities; Rigid pavements; Sandwich construction; Soil cement; Soil stabilization; Surface treating; Thickness; Water bound macadam; Wheel loads
• Uncontrolled Terms: Construction costs; Pavement thickness
• Old TRIS Terms: Bituminous surfacing; Existing pavements
• Subject Areas: Construction; Finance; Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00205528
• Record Type: Publication
• Files: TRIS
• Created Date: May 21 1994 12:00AM