کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6774542 | 1431993 | 2018 | 41 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Factors Affecting the Bond Strength Between the Fly Ash-based Geopolymer Concrete and Steel Reinforcement
ترجمه فارسی عنوان
عوامل موثر بر مقاومت باند بین تقویت بتن و فولاد ژئوپلیمر بر پایه اشباع
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کلمات کلیدی
بتن ژئوپلیمر، استحکام باند، خاکستر پرواز تقویت فولاد، فعال کننده قلیایی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
In this study, the effect of fly ash characteristics, the content of the fly ash and mix proportion of the Fly Ash-Based Geopolymer Concrete (FBGC) on the bond strength between the FBGC and steel reinforcement were examined. Australian fly ashes from five different sources (Eraring, Mt-Piper, Bayswater, Gladstone and Collie) were used in producing FBGC. A total of 45 FBGC mixes with different fly ash content (300, 400 and 500â¯kg/m3) and different proportions of alkaline activator were prepared. The use of different fly ashes and in different amounts showed significant differences in the bond strength between the FBGC and steel reinforcement. It was found that the fly ash characteristics including particle size distribution and the content of SiO2 Al2O3 and CaO influenced the bond strength of the FBGC significantly. The results showed that the FBGC that was mixed with Gladstone (GL) fly ash exhibited the highest average bond strength between the FBGC and steel reinforcement (25â¯MPa). While the FBGC that was mixed with Bayswater (BW) fly ash showed the lowest average bond strength between the FBGC and steel reinforcement (10â¯MPa). The results also indicated that the increase in the fly ash content in the FBGC significantly increased the bond strength between the FBGC and steel reinforcement. The bond strength of the FBGC responded differently to changes in the Na2SiO3/NaOH ratio in the alkaline activator corresponding to the use of different fly ash.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Structures - Volume 14, June 2018, Pages 262-272
Journal: Structures - Volume 14, June 2018, Pages 262-272
نویسندگان
Mustafa Al-Azzawi, Tao Yu, Muhammad N.S. Hadi,