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Influence of geological factors on soundness and abrasion resistance of road surface aggregates: A case study

Influence des facteurs gologiques sur laqualite et la resistance a l'abrasion des granulats pour couches de surface des chaussees

  • International Symposium on Aggregates
  • Theme IV Aggregates for Pavements
  • Published:
Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur Aims and scope Submit manuscript

Abstract

A study has been carried out on soudness and abrasion resistance of crushed-rock aggregates used in heavily trafficked road surfacings in Gauhati, a city situated in the State of Assam, India. The crushed-rock aggregates under study were obtained from Precambrian acid igneous rock outcrops in and around Gauhati. The grain, size and the volume of pore spaces were found to be the significant geological factors influencing soundness and abrasion resistance. The durability, in terms of resistance to weathering and resistance to wear, of the acid igneous rocks was found to increase with decrreasing grain size and decreasing volume of pore spaces.

Résumé

Une étude a été entreprise sur la qualité et la résistance à l'abrasion des granulats concassés, utilisés pour les couches de surface de chaussées à trafic lourd à Gauhati (Assam).

Les granulats proviennent de roches éruptives acides précambriennes de la région de Gauhati. La dimension des grains et la porosité apparaissent comme des facteurs géologiques significatifs, influençant la qualité et la résistance à l'abrasion. La durabilité, dans le sens altérabilité et résistance à l'usure de ces roches, croit lorsque la dimension des grains et la porosité diminuent.

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References

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Authors and Affiliations

  1. Department of Applied Geology, Dibrugarh University, Dibrugarh, Assam, India

    Goswami S. C.

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  1. Goswami S. C.
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Goswami, S.C. Influence of geological factors on soundness and abrasion resistance of road surface aggregates: A case study. Bulletin of the International Association of Engineering Geology 30, 59–61 (1984). https://doi.org/10.1007/BF02594279

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  • DOI: https://doi.org/10.1007/BF02594279

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