کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4913522 1428767 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of accelerated aging on the properties of hemp concretes
ترجمه فارسی عنوان
تاثیر پیری شتابدهنده بر خواص بتونه های کنف
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The use of vegetal concretes, such as hemp concrete, is growing for building insulation. They are constituted by vegetal aggregates embedded in a mineral binder. Hemp concretes are multifunctional materials: they have interesting thermal and acoustical performances and their hygrothermal behavior enables a natural moisture regulation. Currently, their use is limited by their lack of guarantees in terms of durability. This paper focuses on the influence of 75 days of wetting and drying cycles on hemp concrete properties. It is shown that this aging induces modifications of the porosity of the materials and of their skeleton density. However, these evolutions of microstructure are not sufficient to lead to modifications of thermal and acoustical performances. This work has also shown that mold growth occurs when the relative humidity is high (98% RH) and when the pH of the binder has decreased due to its carbonation reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 139, 15 May 2017, Pages 524-530
نویسندگان
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