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      PERFORMANCE OF NATURAL POZZOLAN-BASED GEOPOLYMER REINFORCED WITH BANANA FIBERS

      research-article
      1 , , 2
      Journal of Green Building
      College Publishing
      banana fiber, natural pozzolan, geopolymer, fiber reinforcement

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          ABSTRACT

          Türkiye has approximately 50.000 acres of banana plantations. Banana cultivation produces a huge amount of waste that has no commercial value. The main purpose of this study is to investigate the possibilities of using waste banana fiber in natural pozzolan-based geopolymer mortar to increase its ductile fracture behavior. The effects of fiber content and length on physical and mechanical properties were experimentally carried out. The optimum banana fiber content and length were found to be 1.5% and 20 mm, respectively. Above this limit, fibers made it difficult to obtain a workable matrix and generated fiber agglomeration. Although increasing the fiber content from 0.5% to 1.5% and length above 20 mm led to a decrease in the ultrasound pulse velocity, modulus of elasticity and compressive strength due to the higher porosity of the matrix, the increasing ratios of the flexural strength and toughness were consistent. Furthermore, banana fiber-reinforced geopolymer mortars have adequate porosity (22.87%), water absorption ratio (9.25%), swelling thickness (0.58%), saturation coefficient (78%), drying shrinkage (195x10 –6), water vapor diffusion resistance index (5.73), flexural strength (6.88 MPa), compressive strength (8.75 MPa), and comply with the performance requirements of the related standards. By considering the adequate physical, mechanical and ductile fracture performance of the material, waste banana fiber can be utilized in the production of geopolymers.

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          Most cited references47

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            An environmental evaluation of geopolymer based concrete production: reviewing current research trends

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              Geopolymers and Related Alkali-Activated Materials

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1943-4618
                1552-6100
                Winter 2024
                23 February 2024
                : 19
                : 1
                : 51-76
                Affiliations
                [1 ]Faculty of Architecture and Design, Kocaeli University, Kocaeli, 41310, Türkiye
                [2 ]Affiliation: Faculty of Architecture, Istanbul Technical University, Istanbul, 34367, Türkiye. E-mail: tanacan@ 123456itu.edu.tr
                Author notes
                (Corresponding Author): E-mail: kubra.ekizbaris@ 123456kocaeli.edu.tr
                Author information
                https://orcid.org/0000-0002-3830-7185
                https://orcid.org/0000-0001-7649-2441
                Article
                10.3992/jgb.19.1.51
                d3ff492e-a8e9-4731-85bb-ad1b35b2630d
                © 2024 College Publishing
                History
                Page count
                Pages: 28
                Categories
                RESEARCH ARTICLES

                Urban design & Planning,Civil engineering,Environmental management, Policy & Planning,Architecture,Environmental engineering
                natural pozzolan,banana fiber,fiber reinforcement,geopolymer

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