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    • Advance Researches in Civil Engineering
    • Volume 3, Issue 1
    • مشاهده مورد
    •   صفحهٔ اصلی
    • نشریات انگلیسی
    • Advance Researches in Civil Engineering
    • Volume 3, Issue 1
    • مشاهده مورد
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    A Novel Type of Alkaline Activator for Geopolymer Concrete Based on Class C Fly Ash

    (ندگان)پدیدآور
    Esparham, AlirezaMoradikhou, Amir Bahador
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    نوع مدرک
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    Original Article
    زبان مدرک
    English
    نمایش کامل رکورد
    چکیده
    In recent years, geopolymers, as a new class of green cement binders, have been considered as an environmental-friendly alternative to Ordinary Portland Cement (OPC) which can potentially reduce negative environmental impacts of OPC including: carbon footprint, energy consumption and etc. In this experimental research, effects of different alkaline activator solutions on the compressive, Tensile and flexural strengths, water absorption and resistance to acidic condition of fly-based Geopolymer Concrete (GPC) were investigated. Furthermore, a novel type of alkaline activator for GPC was introduced. In this regard, GPC specimens based on Class C fly ash were manufactured and cured in 90 ˚C. The obtained results showed that addition of NaOH to the mix after 3 min of mixing KOH and Na2SiO3 with dry components (1/3 of the total mixing duration) resulted in the highest compressive, tensile and flexural strengths as well as, the lowest water absorption capacity and weight loss under acidic condition, amongst other cases.
    کلید واژگان
    Geopolymer concrete
    Fly ash
    Alkaline Activator
    Compressive strength
    Resistance to acidic condition

    شماره نشریه
    1
    تاریخ نشر
    2021-03-01
    1399-12-11
    ناشر
    Papyrus Press
    سازمان پدید آورنده
    Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
    Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.

    شاپا
    2645-7229
    URI
    https://dx.doi.org/10.30469/arce.2021.130143
    http://www.arce.ir/article_130143.html
    https://iranjournals.nlai.ir/handle/123456789/793058

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