FATIGUE PROPERTIES OF CEMENT STABILIZED SAND

ONDERZOEK NAAR HET VERMOEIINGSGEDRAG VAN ZANDCEMENT

Taking as a bsis the BISAR programme and the first series of measurements carried out along a 15 state highway an investigation was made into the fatigue behaviour of cement stabilized sand. In this investigation the influence of 1 million load repetitions upon the tensile strength was studied amongst other things. In a second investigation attempts were made to establish a relationship between the strain at the start of the fatigue tests and the life of sand cement beams. In a third investigation this relationship was tested once more, this time by a statistically justified method. Apart from the above-mentioned, further data were obtained concerning tensile strengths, flexural strengths, strains and moduli of stiffness. An analysis of the results reveals the following picture: (1) the type of sand and the cement content are essential factors influencing the tensile strength; (2) the strain at failure and the static modulus of stiffness are strongly dependent on moisture content; (3) dependent on the type of sand, cement content and moisture content, stiffness moduli between 7.2 and 22.0 kn/sq mm, determined by static tensile testing, are found; (4) after fatigue testing, values between 6.4 and 19.1 kn/sq mm are found for this modulus of stiffness; (5) dynamic modulus of stiffness values between 8.0 and 19.9 kn/sq mm, dependent on the strain and frequency, are found by testing with A third-point loading fatigue testing machine. It is assumed that the structural advantages of cement stabilised sand will always be present if the pavement is designed in such a way as to preclude the occurrence of strains exceeding one third of the strain at failure. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00432067
• Corporate Authors:

  Verenging Het Nederlandsche Wegencongres

  Postbus 2200
  The Hague,   Netherlands 
• Authors:
  • Kop, A R
• Publication Date: 1976-10

Language

• Dutch

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 296-306
• Serial:
  • WEGEN
  • Volume: 50
  • Issue Number: 10
  • Publisher: CROW
  • ISSN: 0043-2067

Subject/Index Terms

• TRT Terms: Accelerated tests; Behavior; Cement; Cement treated soils; Coefficients; Computer programs; Deflection; Deformation; Durability; Dynamics; Electromagnetic frequencies; Failure; Fatigue tests; Measurement; Mechanical fatigue; Mechanical strain; Moisture content; Pavement base course; Properties of materials; Repeated loads; Samples; Sand; Soil cement; Soil stabilization; Stabilized materials; Statics; Statistical analysis; Statistics; Stiffness; Strength of materials; Tensile strength; Tension; Tests
• Old TRIS Terms: Strains
• ITRD Terms: 9001: Behaviour; 4758: Cement; 6410: Coefficient; 5586: Deflection; 5595: Deformation; 5910: Durability; 5473: Dynamics; 5520: Failure; 5579: Fatigue (mater); 6997: Frequency; 6136: Measurement; 5920: Moisture content; 5925: Properties; 5588: Repetitive loading; 3688: Roadbase stabilization; 6251: Sample (mater); 4105: Sand; 8645: Software; 5433: Statics; 6555: Statistics; 5931: Stiffness; 5544: Strength (mater); 5502: Tension; 6255: Test
• Subject Areas: Data and Information Technology; Design; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 00174093
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jul 19 1978 12:00AM