STUDY ON A RAPID TEST METHOD FOR EVALUATING THE REACTIVITY OF AGGREGATES --PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON CONCRETE ALKALI-AGGREGATE REACTIONS, OTTAWA, CANADA, 1986

In this paper, a rapid test method is proposed based on some experiments on accelerative conditions of the mortar bar test. The rapid test is an accelerated mortar bar test, in which specimens were immersed in naoh solution under elevated temperature at early age and then cured under high humidity and elevated temperature. The method was found to be effective to accelerate the reaction from the analysis of dissolved silica and pore solution. In order to confirm the relationship between the rapid test and the mortar bar method, some andesite aggregates which authors could obtain in Japan were tested by both the rapid test and the ASTM mortar bar test. The rapid test showed a good correlation with the ASTM mortar bar test.(a) for the covering abstract of the conference see IRRD 811982.

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  • Corporate Authors:

    NOYES PUBLICATIONS

    MILL ROAD
    Park Ridge, NJ  United States 
  • Authors:
    • Yoshioka, Y
    • Kasami, H
    • OHNO, S
    • Shinozaki, Y
  • Publication Date: 1987

Language

  • English

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Filing Info

  • Accession Number: 00481156
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-8155-1142-6
  • Files: ITRD, TRIS
  • Created Date: Apr 30 1989 12:00AM