کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7884814 | 1509716 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Unveiling micro-chemo-mechanical properties of C-(A)-S-H and other phases in blended-cement pastes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Unveiling micro-chemo-mechanical properties of C-(A)-S-H and other phases in blended-cement pastes Unveiling micro-chemo-mechanical properties of C-(A)-S-H and other phases in blended-cement pastes](/preview/png/7884814.png)
چکیده انگلیسی
Current demand for novel highly sustainable concrete urges improving the links between chemical and mechanical effects of supplementary cementitious materials (SCMs) on the microstructure of blended-cement pastes. In this work, coupled NanoIndentation and Quantitative Energy Dispersion Spectroscopy (NI-QEDS) was applied to disclose chemo-mechanical properties of microstructure phases in systems incorporating typical dosages of fly ash, slag, metakaolin, or glass powder. For a fixed water-to-binder ratio of 0.4, the C-(A)-S-H chemistry was significantly affected by the SCMs, while its average mechanical properties varied within the limited ranges Mâ¯ââ¯25-27â¯GPa, Hâ¯ââ¯0.7-0.8â¯GPa and Câ¯ââ¯180-230â¯GPa. The SCMs further changed the arrangement of anhydrous phases and minor hydrates embedded in the C-(A)-S-H matrix, which were also characterized (e.g., Portlandite, AFm such as carboaluminates, or an hydrotalcite-like phase). Finally, engineering properties of blended-cement matrices requires tailoring both the intermix of hydrates and the rigid anhydrous SCM inclusions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 107, May 2018, Pages 317-336
Journal: Cement and Concrete Research - Volume 107, May 2018, Pages 317-336
نویسندگان
William Wilson, Luca Sorelli, Arezki Tagnit-Hamou,