Assessment of the Rheological and Mechanical Properties of Geopolymer Concrete Comprising Fly Ash and Fluid Catalytic Cracking Residue as Aluminosilicate Precursor
نویسندگان
چکیده
The use of fluid catalytic cracking (FCC) by-products as aluminosilicate precursors in geopolymer binders has attracted significant interest from researchers recent years owing to their high alumina and silica contents. Introduced this study is the concrete comprising FCC residue combined with fly ash requisite source aluminosilicate. Fly was replaced various contents ranging 0–100% by mass binder. Results standard testing methods showed that rheological properties such yield stress plastic viscosity well mechanical including compressive strength, flexural elastic modulus were affected significantly content. With alkali liquid solid ratios (AL:GS) 0.4 0.5, a reduction strength observed case increasing On contrary, content exhibited improved an AL:GS ratio 0.65. Relationships enabling estimation based on investigated. Scanning electron microscope (SEM) images X-ray diffraction (XRD) patterns revealed final product geopolymerization process consisting similar ash-based concrete. These observations highlight potential for products.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2021
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app11073032