کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6722979 | 503588 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A kinetic-based ASR aggregate classification system
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A kinetic approach which as-received aggregates were immersed in alkaline solution of varying concentrations and allowed to react at different temperatures was proposed in this study to calculate ASR compound activation energy (CAE) as a measure of alkali silica reactivity of aggregate. The tested aggregates were categorized based on the measured CAE to form an ASR aggregate classification system. The classification system (i) overcomes the limitations and drawbacks of the current test methods, (ii) correctly identifies the aggregates that belong to false positive and negative categories (i.e., failed by ASTM C 1260 but passed by ASTM C 1293 and vice versa), (iii) has the ability to test field aggregates and determine reactivity matching with the field level of alkalinity, and (iv) can serve as an alternative to the current ASR test methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 68, 15 October 2014, Pages 525-534
Journal: Construction and Building Materials - Volume 68, 15 October 2014, Pages 525-534
نویسندگان
Kai-Wei Liu, Anal K. Mukhopadhyay,