کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6712781 | 1428728 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Retardation effect of elevated temperature on the setting of calcium sulfoaluminate cement clinker
ترجمه فارسی عنوان
تأثیر بازدارندگی دمای بالا در تنظیم کلینکر کلسیم سولفوالومینات کلینکر
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The hydration of calcium sulfoaluminate (CSA) clinker at 5, 20 and 40â¯Â°C was characterized by a combination of XRD, DTA-TG and ESEM analysis (also with backscattered electron imaging, BEI). Meanwhile, the setting times and compressive strength development were studied. It was interesting to notice that elevated temperature retards the setting of CSA clinker and decreases compressive strength prominently, while it promotes the hydration heat releasement and hydration degree. With the temperature rising from 5â¯Â°C to 40â¯Â°C, the amount of ettringite formed after 1 d decreases by half, but alumina gel increases by more than 4 times, accompanying with a more inhomogeneous microstructure and higher porosity. ESEM observations indicate that such massive alumina gel covers on the unreacted particles and other hydrates, which could account for the retardation of elevated temperature on the setting of CSA clinker.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 178, 30 July 2018, Pages 112-119
Journal: Construction and Building Materials - Volume 178, 30 July 2018, Pages 112-119
نویسندگان
Linglin Xu, Siyu Liu, Nan Li, Yu Peng, Kai Wu, Peiming Wang,