مقاله انگلیسی رایگان در مورد سطوح بتن سیمان – الزویر ۲۰۱۹

elsevier

 

مشخصات مقاله
ترجمه عنوان مقاله سطوح بتن سیمان تیره، بازتابنده گرما، ضد باران یخی و فوق آبگریز
عنوان انگلیسی مقاله Dark, heat-reflective, anti-ice rain and superhydrophobic cement concrete surfaces
انتشار مقاله سال ۲۰۱۹
تعداد صفحات مقاله انگلیسی ۸ صفحه
هزینه دانلود مقاله انگلیسی رایگان میباشد.
پایگاه داده نشریه الزویر
نوع نگارش مقاله
مقاله پژوهشی (Research Article)
مقاله بیس این مقاله بیس نمیباشد
نمایه (index) Scopus – Master Journals List – JCR
نوع مقاله ISI
فرمت مقاله انگلیسی  PDF
ایمپکت فاکتور(IF)
۴٫۶۸۶ در سال ۲۰۱۸
شاخص H_index ۱۲۹ در سال ۲۰۱۹
شاخص SJR ۱٫۵۲۲ در سال ۲۰۱۸
شناسه ISSN ۰۹۵۰-۰۶۱۸
شاخص Quartile (چارک) Q1 در سال ۲۰۱۸
مدل مفهومی ندارد
پرسشنامه ندارد
متغیر ندارد
رفرنس دارد
رشته های مرتبط مهندسی عمران
گرایش های مرتبط سازه
نوع ارائه مقاله
ژورنال
مجله / کنفرانس مصالح ساختمانی و ساخت و ساز – Construction and Building Materials
دانشگاه  College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, China
کلمات کلیدی بتن سیمان، بازتابنده گرما، فوق آبگریز، ضد باران یخی
کلمات کلیدی انگلیسی Cement concrete، Heat-reflective، Superhydrophobic، Anti-ice rain
شناسه دیجیتال – doi
https://doi.org/10.1016/j.conbuildmat.2019.05.188
کد محصول  E12373
وضعیت ترجمه مقاله  ترجمه آماده این مقاله موجود نمیباشد. میتوانید از طریق دکمه پایین سفارش دهید.
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فهرست مطالب مقاله:
Abstract
۱٫ Introduction
۲٫ Experimental section
۳٫ Results and discussion
۴٫ Conclusions
Declaration of Competing Interest
Acknowledgments
Author contributions
Appendix A. Supplementary data
References

 

بخشی از متن مقاله:
Abstract

Antifouling, weatherable, and heat-reflective coatings have much value for solar sheltering of building in summer. In this work, a multifunctional cement mortar mixture was obtained by mixing ‘‘cool cold” black pigments with cement, sand, TiO2 nanoparticles and water. After the mixture was mortared on a cement concrete slab, dried at room temperature and treated with fluorine silicon sol, a gray cement concrete layer was obtained. UV–visible-infrared spectrometer confirmed that the layer has obvious infraredreflective property at 780–۲۵۰۰ nm. Under the radiation of a 275 W and 40 cm height infrared lamp, the surface temperature of the gray ‘‘cool cold” cement concrete is about 40 C lower than that of the carbon black cement concrete, and is about 20 C lower than that of the ordinary cement concrete, and is only about 1 C higher than that of the white TiO2 cement concrete. Moreover, all these cement concrete surfaces showed typical superhydrophobic (SH) property and the ‘‘cool cold” cement concrete surface further exhibited stable SH properties to both rain and UV radiation, which may allow for self-cleaning performance for the surface and the ability to retain its heat-reflective property over a long period of time. Meanwhile, the ‘‘cool cold” cement concrete SH surface exhibited excellent anti-ice rain performance. Because the layer can be easily mortared on the cement concrete substrate, we think it would have great potential for use on building roof and outside walls to reduce air-conditioning energy consumption in the summer.

Introduction

Due to the rapid increase of building energy consumption, which accounts for nearly approximately one-third of total societal energy consumption [1], it is important to seek some effective methods to realize building energy saving [2,3]. Recently, enhancing the infrared reflectance of the exterior wall or roof has been studied and adopted to solve this problem, because the infrared energy accounts for approximately half of the total solar energy [4]. So far, white or light color coatings [5,6] have been widely applied on the exterior of building walls or roofs because it is well known that white color possesses the best solar reflective performance [7]. However, the white or light color always has the problem of being easily polluted and single color, hardly satisfies human demand in actual building decoration. In recent years, more and more deep color pigments which possess excellent infrared reflective property have been developed, such as blue [8], yellow [9], red [10] and so on.

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