کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1458226 989310 2017 4 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Use of perlite powder to suppress the alkali–silica reaction
ترجمه فارسی عنوان
استفاده از پودر پرلیت برای سرکوب واکنش قلیایی سیلیس
کلمات کلیدی
واکنش قلیایی کل؛ میله ملات. پودر پرلیت
Alkali-aggregate reaction; Mortar bars; Perlite powder
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی

Reported below are the results from a study aimed at mitigating the deleterious alkali–silica reaction by using perlite powder as an admixture. The expansion of mortar bars containing various amounts of silica fume (SF), expanded perlite, and natural perlite was studied. Two kinds of reactive aggregates were used in the study: highly reactive river aggregate containing opal and marginally reactive monzo-diorite aggregate. Expanded perlite and silica fume were tested with both aggregate, separately; on the other hand, natural perlite was tested only with monzo-diorite aggregate. The bars were cast in accordance with ASTM C1260, accelerated mortar bar method, and were stored in NaOH solution for 30 days. Length changes were measured and reported. The results showed that both expanded and natural perlite powder (NPP) have potential to suppress the deleterious alkali–silica expansion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 35, Issue 10, October 2005, Pages 2014–2017
نویسندگان
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