کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6711822 1428721 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The coupling effect of calcium concentration and pH on early hydration of cement
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
The coupling effect of calcium concentration and pH on early hydration of cement
چکیده انگلیسی
The results suggest that simultaneous removal of calcium and hydroxyl ions can significantly increase the length of induction period and reduce the height of the silicate reaction peak in the calorimetric curves, whereas the removal of hydroxyl or calcium ions alone cannot. The calculation of saturation index of alite, CH, and C-S-H indicates that undersaturation degree of alite during induction period is well related to the length of induction period and simultaneous removal of calcium and hydroxyl ions is likely to cause lower undersaturation degree of alite, longer induction period, and postponed time of silicate peak. The increase of pH could result in a higher sulfate concentration and subsequently a higher aluminate peak, and a shorter time interval between silicate and aluminate peak.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 185, 10 October 2018, Pages 391-401
نویسندگان
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