کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11026788 | 1666350 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ohmic heating curing of electrically conductive carbon nanofiber/cement-based composites to avoid frost damage under severely low temperature
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ohmic heating curing of electrically conductive carbon nanofiber/cement-based composites to avoid frost damage under severely low temperature Ohmic heating curing of electrically conductive carbon nanofiber/cement-based composites to avoid frost damage under severely low temperature](/preview/png/11026788.png)
چکیده انگلیسی
This study reports a novel ohmic heating curing method, in which alternating voltage was applied to the fresh carbon nanofiber/cement-based composite to generate ohmic heating, in order to accelerate the hydration reaction and prevent the early frost damage of cement-based materials under severely low temperature. Carbon nanofibers (CNFs) were utilized to form a conductive path in the fresh cement-based composite, thus the electrical resistivity was reduced. A numerical model was constructed to simulate the bridging behaviour of CNFs comparing with the experimental observation. An internal temperature rise was observed with the carbon nanofiber/cement-based composite cured under the ohmic heating condition at â20â¯Â°C, and the cured sample showed excellent mechanical property and structural homogeneity. This work provides insights into the quality control of cement-based materials by means of ohmic heating curing, providing a convenient and energy-efficient solution for construction in cold regions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 115, December 2018, Pages 236-246
Journal: Composites Part A: Applied Science and Manufacturing - Volume 115, December 2018, Pages 236-246
نویسندگان
Yushi Liu, Mingzhi Wang, Wei Wang,