کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7883612 1509642 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydration kinetics of high-strength concrete with untreated coal bottom ash for internal curing
ترجمه فارسی عنوان
سینتیک هیدراتاسیون بتن با مقاومت بالا با خاکستر ذغال سنگ ناراحت کننده برای درمان داخلی
کلمات کلیدی
خاکستر ذغال سنگ، درمان داخلی درجه هیدراتاسیون، ریز ساختار، مصالح سبک وزن، تجزیه و تحلیل ترموگرافی، ویژگی های مکانیکی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
The present paper reported the hydration kinetics of high-strength concrete with untreated coal bottom ash to further understand the mechanism of internal curing with bottom ash. As a reference material, a type of commercialized artificial lightweight aggregate was used. Prior to investigating the hydration of concrete, the microstructure of the concrete was observed by using a backscattered electron (BSE) type scanning electron microscope. To systematically investigate the hydration kinetics of the concrete, the degree of hydration was measured and a thermogravimetric analysis (DTA/TGA) for cement mortar was conducted. In addition, the relationship between the hydration kinetics and mechanical properties of concrete containing both types of aggregates were analyzed. It was found that the tendency of hydration enhancement by bottom ash was affected by 1) the escape of water from bottom ash into the cement paste before setting of the fresh mixture, and 2) the high pozzolanic reactivity of bottom ash.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 91, August 2018, Pages 67-75
نویسندگان
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