کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10621906 | 989038 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanoindentation characteristics of alkali-activated aluminosilicate materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Low calcium ground fly ash and metakaolin were activated with a sodium-silicate solution and cured under ambient and heat conditions. The resulting mature aluminosilicate composites were indented by several series of grids consisting of approximately 100 indents in each. The effective material volume affected by an indent was â1 μm3. Statistical histogram plots of elastic properties of the main reaction product (N-A-S-H gel) as well as of other material phases were constructed. The deconvolution of histograms via four Gaussian distributions testified that the mature N-A-S-H gel has almost the constant intrinsic Young's modulus â17-18 GPa, irrespective of the curing procedure and activated material, i.e. fly ash or metakaolin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 33, Issue 2, February 2011, Pages 163-170
Journal: Cement and Concrete Composites - Volume 33, Issue 2, February 2011, Pages 163-170
نویسندگان
JiÅà NÄmeÄek, VÃt Å milauer, LubomÃr Kopecký,