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Matériaux et Construction

, Volume 3, Issue 1, pp 45–51 | Cite as

Determination of absorbed water in lightweight aggregate and quantities of ingredients in lightweight concrete

  • H. Stamenkovic
Article
  • 134 Downloads

Summary

Using the principles of specific gravity the author has derived and proposed the following two formulas and one method.
  1. 1.

    A formula for determining bulk specific gravity (saturated surface dry basis), for lightweight aggregate, used in lightweight concrete.

     
  2. 2.

    A formula for determining the total quantity of absorbed water in lightweight aggregate. This formula provides a method which is independent of the saturation of the aggregate with water, and gives the quantity of water which the aggregate contains at a given moment.

     
  3. 3.

    A method for determining the weight of the components in a unit volume of lightweight concrete.

     

These two formulas and the method are applicable to lightweight concrete which contains lightweight aggregate only, and to lightweight concrete when a portion of the lightweight sand has been replaced with natural sand.

The derived formulas have been verified by experimental data and numerical examples illustrate the use of the formulas.

Keywords

Specific Gravity Portland Cement Void Content Fresh Concrete Lightweight Aggregate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

D'aprés les principes sur lesquels repose la notion de densité, l'auteur expose et propose:
  1. 1.

    Une formule pour déterminer la densité apparente des agrégats légers utilisés dans les bétons légers.

     
  2. 2.

    Une formule pour déterminer la quantité totale d'eau absorbée dans les agrégats légers. Cette formule fournit une méthode indépendante de la saturation en eau des agrégats et permet d'obtenir la quantité d'eau que les agrégats renferment à un instant donné.

     
  3. 3.

    Une méthode pour déterminer le poids des composants dans l'unité de volume d'un béton léger.

     

Ces deux formules et la méthode peuvent s'appliquer aux bétons légers qui ne renferment que des agrégats légers ainsi qu'aux bétons légers où une partie des agrégats légers fins a été remplacée par du sable. Les formules obtenues ont été vérifiées par des résultats expérimentaux et des exemples numériques en illustrent l'application.

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Copyright information

© Secrétariat de Rédaction 1970

Authors and Affiliations

  • H. Stamenkovic
    • 1
  1. 1.United Concrete Pipe CorporationBaldwin ParkU.S.A.

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