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A re-examination of specification parameters for sandy soil roadbase materials

  • Metcalf J. B. 
  • Wylde L. J. 
International Symposium on Aggregates Themes 6. Artificial and Low Quality Aggregates

Abstract

Red sandy soils from the north-west of Western Australia have been used for construction of local roads and some arterial roads, in some cases with a sprayed bituminous seal. The comparisons of the results of different soil test methods and an assessment of their effectiveness as indicators of performance was done by examining soil test reports made by the Main Roads Department, Western Australia, in the period 1980 to 1981, and by the laboratory examination of samples of sand to which could be assigned some description of their performance and behaviour when used as road construction materials.

The relationship between Particle Size Distribution and the performance (including construction characteristics) of sand pavements is discussed as a basis for specification criteria.

Keywords

Particle Size Distribution Arterial Road Confine Compression Soil Test Method Road Construction Material 

Un nouvel apport de l'examen des parametres de specification pour des sols sableux

Résumé

On a utilisé des sols rouges sableux du nord-ouest de l'Australie Occidentale dans la construction de chemins vicinaux et de quelques grandes routes revêtues quelquefois de bitume. La comparaison des résultats des méthodes diverses d'essais de sols et une évaluation de leur efficacité en tant qu'indicateurs de performance, a été faite en examinant des rapports d'essais de sols du “Main Roads Department” de l'Australie Occidentale entre 1980 et 1981, et en examinant au laboratoire des échantillons de sables dont on pouvait décrire la performance et le comportement quand ils étaient utilisés comme matériaux de construction routière.

On a discuté le rapport entre la “distribution granulométrique” et les performances (y compris les caractéristiques de construction) de couches de base de sable comme fondement des critères des normes limites.

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References

  1. BAKER G.F.U. (1965): (Unpublished). Investigation of Pavement Failures. Main Roads Department, Western Australia. Internal Report 912/60.Google Scholar
  2. FOLK R.L. (1974): Petrology of Sedimentary Rocks. Hemphill (Austin, Texas). 2nd Ed. 182 pp.Google Scholar
  3. MRD-WA (1975) (Unpublished): Test method S17–75 Western Australia Confined Compression Test. Materials Testing Manual. Main Roads Department, Western Australia.Google Scholar

Copyright information

© International Association of Engineering Geology 1984

Authors and Affiliations

  • Metcalf J. B. 
    • 1
  • Wylde L. J. 
    • 2
  1. 1.Australian Road Research BoardNunawadingAustralia
  2. 2.Department of Earth Sciences FlindersUniversity of South AustraliaBedfort ParkAustralia

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