廃棄ガラス起源リサイクル砂のアルカリシリカ反応性に関する研究  [in Japanese] A Study on Alkali-Silica Reactivity of Recycled Sands Produced from Glass Wastes  [in Japanese]

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Author(s)

Abstract

金沢大学理工研究域環境デザイン学系

In recycling the sand originally produced from glass waste as a fine aggregate for concrete mixture, their alkali-silica reactivity and alkali-leaching ability are very important from the view-points of the long-term stability of the recycled glass sand in concrete. In this study, the alkali-silica reactivity of four types of glass sands was comparatively investigated according to the chemical method, JIS A1145, and three types of mortar bar methods, JIS A1146, ASTM C1260 and Danish method. Also, the amounts of the alkali ions, Na<SUP>+</SUP> and K<SUP>+</SUP>, released from the sand itself in the saturated calcium hydroxide solution at 38°C was periodically measured. From the results of experiment, it was found out that the alkali-silica reactivity of recycled glass sands could not be properly determined by the chemical method because of relatively large amounts of alkali ions released from the sand itself during the test, and that the expansion behavior of mortar bars in accelerated curing conditions significantly changed depending on both the chemical compositions and the internal texture of glass sands used. Finally, the mitigation method of alkali-silica reaction by using fly ash or glass powder was discussed.

Journal

  • Journal of the Society of Materials Science, Japan

    Journal of the Society of Materials Science, Japan 55(10), 905-910, 2006-10-15

    The Society of Materials Science, Japan

References:  6

Cited by:  1

Codes

  • NII Article ID (NAID)
    110006570840
  • NII NACSIS-CAT ID (NCID)
    AN00096175
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    05145163
  • NDL Article ID
    8544696
  • NDL Source Classification
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL Call No.
    Z14-267
  • Data Source
    CJP  CJPref  NDL  NII-ELS  IR  J-STAGE 
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