کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4913924 | 1428779 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties, microstructure and hydration products of lightweight aggregate concrete with metakaolin and slag addition
ترجمه فارسی عنوان
خواص، ریزساختار و محصولات هیدراتاسیون از بتن سنگین وزن سبک با افزودن متاکائولین و سرباره
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
ویژگی های مکانیکی، منطقه انتقال متقابل، مقاومت نفوذ کلرید، انقباض، میکروسکوپ الکترونی اسکن، پراش اشعه ایکس،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The effects of metakaolin (MK) and slag on the strength, shrinkage, chloride resistance and interfacial transition zone microstructure of lightweight aggregate concrete were characterized by a range of analytical techniques. Slag decreased early age strength while MK increased late age strength, which was further increased by the combination of MK and slag. MK was more effective on reducing chloride diffusion coefficient and shrinkage than slag. These properties were further improved by the combination of MK and slag. Linear correlation was observed between strength and chloride diffusion coefficient with higher strength presenting lower diffusion coefficient. Portlandite, ettringite, hemicarboaluminate and monocarboaluminate were identified as hydration products. MK promoted the formation of hemicarboaluminate and monocarboaluminate. Portlandite content decreased at 28Â days in concrete with MK and slag, resulting in an interfacial transition zone with denser microstructure and lower Ca/Si ratio, due to the pozzolanic reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 127, 30 November 2016, Pages 59-67
Journal: Construction and Building Materials - Volume 127, 30 November 2016, Pages 59-67
نویسندگان
Shukai Cheng, Zhonghe Shui, Qiu Li, Tao Sun, Ronghui Yang,