محبوبترین نویسندگان :
نویسندگان مقالات پربازدید :
نهمین کنگره بین المللی مهندسی عمران
جزئیات رویداد
همایش ، رویداد ، ژورنال
اینستاگرام تی پی بین
حوزه های تحت پوشش رویداد

  • effect of size and amount of glass aggregate on alkali silica reaction

    نویسندگان :
    کلمات کلیدی :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/11/15
    • تاریخ انتشار در تی پی بین: 1390/11/15
    • تعداد بازدید: 771
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this study, the potential alkali reactivity of glass aggregate was investigated in accordance with rilem a.tc 106-2 standard. for this purpose two series of mortar mixtures were prepared. in the first series five different size fraction of non-reactive crushed limestone aggregate including 2-4 mm, 1-2 mm, 0.5-1 mm, 0.25-0.5 mm, and 0.125-0.25 mm were replaced with the corresponding particle size of flint glass. in the second series 25, 50, 75, and 100 % of the non-reactive aggregate was replaced with glass particles having the same gradation with that of the non-reactive aggregate. regardless of the size and amount of the glass particles used in the mortar, it was observed that no considerable expansions were recorded within 14 days of exposure to 80 °c 1 n na oh solution as prescribed by the standard. however, beyond this period a great amount of expansion was recorded in the mortar bars containing 2-4 mm and 1-2 mm glass size fractions. although the 48-day expansion values of the glass-bearing mixtures in second series are well below 0.1% standard limit, the expansion figures of mixtures have still increasing trends. it seems that the rilem a.tc 106-2 accelerated mortar bar method is conventionally used for rapid asr assessment, but there is doubt about its suitability for determining the reactivity of glass aggregates.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها