کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7885492 | 1509759 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigation of solute transport in unsaturated cement pastes
ترجمه فارسی عنوان
بررسی تجربی حمل و نقل محلول در پاستای سیمان غیر اشباع
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
This article is dedicated to the development of a method for acquiring experimental data on ionic diffusion in partially saturated cement-based materials. A modified “half-cell” method is adopted in order to introduce the diffusing solute without disturbing the initial water content of the material. After a certain diffusion time (5 to 10Â months), the concentration profiles of the tracer within the samples are measured by elemental mapping using the Laser Induced Breakdown Spectroscopy technique (LIBS). Analyses of the diffusion profiles obtained show a net decrease of the liquid-phase diffusivity with desaturation of the material, in accordance with the results in the literature. The innovation provided by this study consists in taking into account the adsorption of the tracer (Li) in the analytical processing of the diffusion profiles. This adsorption was quantified by measuring the interaction constant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 63, September 2014, Pages 46-53
Journal: Cement and Concrete Research - Volume 63, September 2014, Pages 46-53
نویسندگان
Wissem Dridi, Jean-Luc Lacour,