کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4912931 | 1428749 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of Nano SiO2 and Nano TiO2 to improve the mechanical behaviour of stone mastic asphalt mixtures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The service life of asphalt mixtures decreases due to heavy traffic and environmental conditions. Thus, pavement researchers are constantly trying to improve the HMA conditions, such as reducing the incidence rate of damages in the roads and delay the incidence time as much as possible. Stone mastic asphalt (SMA) is a type of hot mix asphalt which contains more coarse aggregate particles. The primary objective of this research is evaluation the effects of adding Nano SiO2 and TiO2 as modifier additives on mechanical behaviour of SMA mixtures. Nano SiO2 and TiO2 are studied as an additive in this research and, the effect of these Nano materials on mechanical behaviour of SMA is investigated by wheel track, indirect tensile fatigue, and indirect tensile stiffness modulus tests. Bitumen 60-70 is modified with different contents of Nano SiO2 and Nano TiO2 (0, 0.3, 0.6, 0.9 and 1.2%, respectively, by weight of the bitumen). The Results of this research show that adding the different percentages of Nano materials is capable to improve the mechanical behaviour of stone mastic asphalt, significantly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 157, 30 December 2017, Pages 965-974
Journal: Construction and Building Materials - Volume 157, 30 December 2017, Pages 965-974
نویسندگان
Mostafa Sadeghnejad, Gholamali Shafabakhsh,