کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10145746 1646368 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved microwave heating and healing properties of bitumen by using nanometer microwave-absorbers
ترجمه فارسی عنوان
بهبود مایکروویو گرما و خواص بهبودی قیر با استفاده از نانومتر مایکروویو-جذب
کلمات کلیدی
نانولوله های کربنی، گرافن، قیر معدنی، خواص خود درمانی، خواص رئولوژیکی، گرمایش مایکروویو،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Two nanometer microwave-absorbers named as carbon nanotubes (CNTs) and graphene, were firstly used to improve the microwave heating and healing properties of bitumen under microwave irradiation. Surface textures of two nanometer microwave-absorbers, low-temperature cracking resistance and high-temperature rheological properties of modified bitumen during heating process were characterized. Initial self-healing temperature based on flow behavior index, exothermic rate and healing effects of bitumen were also tested. Results illustrated that CNTs and graphene improved the high-temperature rheological properties of basis bitumen, while they presented a worse effect on low-temperature cracking resistance. Exothermic rate of basis bitumen was only a quarter of that of graphene modified bitumen and one third of that of CNTs modified bitumen. After 12 h of rest time, the healing indexes of basis bitumen, graphene modified bitumen and CNTs modified bitumen were 13.89%, 69.15% and 75.20% respectively. Nanometer microwave-absorbers significantly accelerated the heating process and modified bitumen had better healing effects than basis bitumen.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 189, 20 November 2018, Pages 757-767
نویسندگان
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