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Airfield pavement construction using basalt aggregate

  • M. S. Rosenbaum
  • G. Skene
Article

Abstract

75,000 m3 oc concrete were required for the Fast Exit Taxiway and Apron works for development of Wideawake airfield on Ascension Island. Locally available construction materials were used wherever possible because of the remote location. The pavement contractor obtained some 250,000 tonnes of concrete aggregate by quarrying basalt from aa lava flows associated with highly vesicular basalt scoria ejected during Strombolian-type eruptions. The methods used for ground investigation, material assessment and development include the innovative use of geostatistical techniques for resource evaluation.

Keywords

Lava Flow Ordinary Portland Cement Fine Aggregate Basalt Lava Concrete Aggregate 

Construction d'une piste d'aérodrome avec des granulats basaltiques

Résumé

Pour l'agrandissement de l'aérodrome de Wideawake, dans l'île de l'Ascension, 75 000 m3 de béton étaient nécessaires pour construire une voie de dégagement rapide et le tablier. En raison de l'éloignement de l'île, ce sont les matériaux locaux qui ont été utilisés dans toute la mesure du possible. L'entrepreneur responsable de la construction des chaussées a fabriqué 250 000 tonnes de granulats pour béton à partir du basalte extrait de coulées de laves de type aa associées à des scories basaltiques très vacuolaires expulsées lors d'éruptions de type strombolien. Les méthodes utilisées pour l'étude des gisements, la caractérisation des matériaux et leur utilisation comprennent l'utilisation innovante de techniques géostatistiques pour l'évaluation des ressources.

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Copyright information

© International Association of Engineering Geology 1995

Authors and Affiliations

  • M. S. Rosenbaum
    • 1
  • G. Skene
    • 2
  1. 1.Department of GeologyImperial College of Science, Technology & MedicineLondonUK
  2. 2.Strategic Project Management, Camusfearna, The ShuteNewchurchUK

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