کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1457780 989280 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystallisation of calcium hydroxide in early age model and ordinary cementitious systems
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Crystallisation of calcium hydroxide in early age model and ordinary cementitious systems
چکیده انگلیسی

The distribution and morphology of CH particles in various cementitious systems was investigated to determine which parameters influence their nucleation and growth. Morphological image analysis of SEM-BSE images of polished cross-sections was used to measure CH distribution, particle size and shape within the microstructure. It was observed that CH crystallises according to two main patterns, the first consisting of a few, large, convoluted and unevenly distributed clusters, while the second consists of numerous smaller particles, evenly and closely distributed in the matrix. The growth of CH in Portland cement type systems seems to be the result of a specific interaction between the availability of gypsum and alumina, with CH crystals nucleating in the vicinity of gypsum particles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 37, Issue 4, April 2007, Pages 492–501
نویسندگان
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