کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6711859 1428722 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on the structure and properties of autoclaved aerated concrete produced with the stone-sawing mud
ترجمه فارسی عنوان
بررسی ساختار و خواص بتن هوادهی اتوکلاو تولید شده با گلدان سنگ زنی
کلمات کلیدی
گلدان سنگ زنی، بتن هوادهی اتوکلاو، ساختار پوسته، هیدراتاسیون،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The mineral composition of the stone-sawing mud is mainly quartz, containing a small amount of sodium feldspar and potassium feldspar. It could be instead of river sand to be used for preparation of the autoclaved aerated concrete (AAC). The results showed that under the same condition, the porosity rate of the AAC with stone sawing mud and river sand was 73.3% and 74.6% respectively. The average pore size was 0.82 mm and 0.95 mm respectively. The AAC prepared with stone sawing mud and river sand have good thermal insulation performance with the thermal conductivity of 0.14 W/(m·K). As the amount of stone sawing mud replacing the river sand increased gradually, the bulk density and the compressive strength of the AAC were gradually increased. The X-ray diffraction (XRD) and scanning electron microscope (SEM) showed that the amount of hydrated products of the tobermorite and the calcium silicate hydrates (C-S-H) in the AAC with stone-sawing mud were more than that in the AAC with the river sand. The crystallization of tobermorite crystals in the AAC with the stone-sawing mud grew into a leaf shape, and interleaved with each other to form a dense structure net, which made the AAC with improved mechanical properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 184, 30 September 2018, Pages 20-26
نویسندگان
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