INFLUENCE OF THE VARIATIONS IN MECHANICAL CHARACTERISTICS ON THE QUALITY OF ROAD BASES STABILIZED WITH HYDRAULIC BINDERS

INFLUENCE DES VARIATIONS DES PROPRIETES MECHANIQUES SUR LA QUALITE DES COUCHES DE BASE TRAITES AUX LIANTS HYDRAULIQUES

A list is given of the possible modes of deterioration of A road base stabilized with hydraulic binders under the effect of traffic: failure through fatigue under repeated flexural stresses; deterioration at the upper surfacing/road base interface; deterioration at the level of shrinkage cracks; failure by buckling during a period of high temperature; loosening of the materials throughout due to immersion or subjection to freezing-thawing cycles. An attempt is made to determine the influence of the variations in the composition of gravel stabilized with hydraulic binders on the aptitude of the base to withstand the above types of deterioration. As regards deterioration due to fatigue caused by repeated flexural stresses, an attempt was made to quantitatively solve the problem in the case of a gravel-cement mixture by using a model pavement and simplifying hypotheses. It was shown that variations in composition lead to increases in the thickness in the order of 50%. Variations in composition existing on the construction site are classified in order of importance. A reduction in the deviations obtained during manufacture or laying can mean a marked increase in the lifetime of the road base. /TRRL/

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Authors:
  • Bonnot, J
• Publication Date: 1973-3-4

Language

• French

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 77-87
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 64
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Accelerated tests; Buckling; Cement; Cracking; Deflection; Deterioration; Durability; Failure; Freeze thaw durability; Gravel; Heat; Loss and damage; Mechanical fatigue; Mix design; Pavement base course; Repeated loads; Shrinkage; Soil stabilization; Stabilized materials; Strength of materials; Thickness; Traffic
• Uncontrolled Terms: Freeze thaw cycles; Immersion; Stabilization
• ITRD Terms: 4577: Aggregate; 5522: Buckling; 4758: Cement; 5211: Cracking; 5586: Deflection; 5255: Deterioration; 5910: Durability; 5520: Failure; 5579: Fatigue (mater); 2577: Freezing thawing cycle; 4575: Gravel; 6213: Immersion test; 6473: Mathematical model; 4714: Mix design; 9048: Modification; 5919: Modulus of elasticity; 5920: Moisture content; 2955: Pavement; 2961: Roadbase; 4743: Shrinkage; 4561: Slag; 5544: Strength (mater); 6722: Temperature; 5502: Tension; 5933: Thickness; 755: Traffic
• Subject Areas: Design; Geotechnology; Highways; Operations and Traffic Management; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00125312
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Files: ITRD, TRIS
• Created Date: Dec 3 1975 12:00AM