کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6711506 | 1428720 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical properties, microstructure and drying shrinkage of hybrid fly ash-basalt fiber geopolymer paste
ترجمه فارسی عنوان
خواص مکانیکی، ریزساختار و انقباض خشک شده از خمیر هیبرید فسفات خاکستر-بازالت فیبر ژئوپلیمر
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
This paper evaluates the mechanical properties, microstructure and drying shrinkage of hybrid fly ash-basalt fiber geopolymer paste. Fly ash was replaced with basalt fiber at the replacement levels of 0, 10, 20, 30, 40 and 100%. Na2SiO3/NaOH ratio of 1.0 and liquid to binder (L/B) ratio of 0.60 were used for making geopolymer pastes. Setting time, strength and drying shrinkage of geopolymer pastes were tested. The results showed that the replacement of fly ash with basalt fibers in geopolymer pastes resulted in increased setting times and strength and reduced drying shrinkage of paste. The basalt fiber acted as small reinforcing fibers and enhanced the development of CSH, CASH and NASH which further enhanced the properties of paste. In addition, the total porosity and critical pore size of fly ash geopolymer paste reduce with increasing replacement content in fly ash which makes the paste more homogeneous and dense compared to fly ash geopolymer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 186, 20 October 2018, Pages 62-70
Journal: Construction and Building Materials - Volume 186, 20 October 2018, Pages 62-70
نویسندگان
Wonsiri Punurai, Wunchock Kroehong, Adam Saptamongkol, Prinya Chindaprasirt,