کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6718750 | 503542 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanism of cement/carbon nanotube composites with enhanced mechanical properties achieved by interfacial strengthening
ترجمه فارسی عنوان
مکانیسم کامپوزیت های نانولوله های سیمان / کربن با خواص مکانیکی افزایش یافته توسط تقویت بین فاز
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
سیمان، نانولوله های کربنی، تقویت اینترفیس، استحکام خمشی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The mixing of carbon nanotubes (CNTs) with cement or concrete to form cementitious composites has been practiced for decades. CNTs usually aggregate, and have very weak interfacial interaction with the cement matrix, which negates any benefits associated with the original properties of the CNTs. In this study, we present a novel method for interfacial enhancement between surface-treated CNTs and the cement matrix using polyvinyl alcohol (PVA) as the bridging agent. Compared with the slight enhancement effect of untreated CNTs, the flexural strength of cementitious composites containing 0.05Â wt% surface-treated CNTs increased from 5.52 to 12.61Â MPa with the interfacial strengthening of PVA. A similar flexural strengthening was also found by using graphene oxide (GO) to replace CNTs. Our findings demonstrate that the flexural strength of cement/CNT (or GO) composites can be clearly increased by interfacial strengthening between the CNTs (or GO) and the cement matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 115, 15 July 2016, Pages 87-92
Journal: Construction and Building Materials - Volume 115, 15 July 2016, Pages 87-92
نویسندگان
Guoxing Sun, Rui Liang, Zeyu Lu, Jinrui Zhang, Zongjin Li,