کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4913837 | 1428774 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assessing and understanding the interaction between mechanical and thermal properties in concrete for developing a structural and insulating material
ترجمه فارسی عنوان
ارزیابی و درک تعامل بین خواص مکانیکی و حرارتی در بتن برای ایجاد یک ساختار و مواد عایق
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کلمات کلیدی
سنگین وزن، خاکستر پرواز استحکام فشاری، بتن ساختمانی، مدلهای دو مرحلهای،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Highly thermal insulated building envelopes are the base of energy efficient buildings worldwide, however, concrete show poor thermal insulation properties. Developing a structural and thermal insulating concrete is challenging because improving thermal properties undermines mechanical properties. This study aims to understand the interactions between thermal and mechanical properties of concrete (conductivity-to-strength efficiency), when modifying the matrix and aggregate phases by adding fly ash (FA) and coarse and fine lightweight aggregates (LWAs). Based on the ratio fc/λ, the highest efficiency was given by the addition of LWAs (0.017 [W/mK]/MPa) in comparison with the addition of FA (0.008 [W/mK]/MPa). Nevertheless, those efficiencies are highly dependent on the interaction between the aggregate and matrix phases. The optimization of one phase only is not enough to obtain a structural insulating concrete because the thermal conductivity-to-strength efficiency is governed by both, the aggregate and the matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 132, 1 February 2017, Pages 353-364
Journal: Construction and Building Materials - Volume 132, 1 February 2017, Pages 353-364
نویسندگان
Jose C. Remesar, Sergio Vera, Mauricio Lopez,