کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10285126 | 503551 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies on early stage hydration of tricalcium silicate incorporating silica nanoparticles: Part II
ترجمه فارسی عنوان
مطالعات مربوط به هیدراتاسیون اولیه کریستالی سیلیکات با ترکیب نانوذرات سیلیکا: قسمت دوم
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
چکیده انگلیسی
The beneficial role of silica nano-particles (SNPs) during the early stage hydration of tricalcium silicate (C3S) has been investigated. ICP results show that SNPs significantly accelerate the hydration rate as well as the growth of hydrated products, by providing additional nucleating sites. XRD results also show a dominant nucleation effect of SNPs up to 10Â h. While, at later stage i.e. from 15 to 24Â h, the pozzolanic effect of SNPs was dominant. Further, TGA results reveal that, in SNPs incorporated samples, quantity of CH is higher (â¼61% at 8Â h) up to 10Â h, and lower (â¼32% at 24Â h) from 15 to 24Â h than the control, showing the nucleation and pozzolanic effect of SNPs respectively. FTIR and XRD results further reveal an accelerated formation of crystalline C-S-H (jennite and tobermorite) with SNPs. All these results i.e. accelerated hydration, crystalline C-S-H formation and lower C/S (â¼1.9) lead to enhanced durability of cementitious materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 102, Part 1, 15 January 2016, Pages 943-949
Journal: Construction and Building Materials - Volume 102, Part 1, 15 January 2016, Pages 943-949
نویسندگان
L.P. Singh, S.K. Bhattacharyya, S.P. Shah, G. Mishra, U. Sharma,