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Furnace bottom ash as a fine aggregate

  • Kettle R. J. 
International Symposium on Aggregates Themes 6. Artificial and Low Quality Aggregates
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Abstract

Consideration has been given to the use of alternative materials, including industrial waste, in pavement construction. One such material is furnace bottom ash. In view of its comparatively low strength, some form of improvement is necessary and this paper is concerned with cement stabilisation.

Tests on four furnace bottom ashes indicated that they satisfy the requirements materials to be stabilised. The suitability of the stabilised mixtures has been assessed using the characteristics of strength and durability. The stabilised ashes produced materials suitable for pavement construction, with cement contents of approximately 80 kg/m3. At cement contents of 10%, the mixtures developed 28 days cube strengths in excess of 20 MPa, and the results indicated further strength development by pozzolanic reactions.

Keywords

Granular Material Cement Content Pozzolanic Reaction Optimum Moisture Content Target Strength 

Cendres volantes utilisees comme granulats fins

Résumé

On a considéré l'usage des matériaux de remplacement y compris les déchets industriels, pour la construction routière. Un matériau de ce type est représenté par les cendres volantes. En considération de leur résistance comparativement faible, une stabilisation quelconque est nécessaire et cette étude concerne la stabilisation au ciment.

Les essais sur quatre cendres volantes ont indiqué qu'elles satisfont aux critères de la stabilisation. La convenance des divers mélanges stabilisés a été évaluée en condidérant les caractéristiques de résistance et de durabilité. Il est possible de stabiliser toutes les cendres volantes pour produire des matériaux qui conviennent à la construction routière, avec une teneur en ciment d'à peu près 80 kg/ m3. Avec des teneurs en ciment de 10 % les mélanges ont développé des résistances en compression à 28 jours supérieures à 20 MPa et les résultats de laboratoire ont indiqués le développement de très fortes résistances en raison des réactions pouzzolaniques.

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Copyright information

© International Association of Engineering Geology 1984

Authors and Affiliations

  • Kettle R. J. 
    • 1
  1. 1.Department of Civil EngineeringUniversity of Aston in BirminghamUK

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