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ICWET'21  

         

ULIBTK 2021

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Research Article

The effect of hemp fiber usage on the mechanical and physical properties of cement based mortars

Gökhan Kaplan1, Oğuzhan Yavuz Bayraktar2

1Atatürk University, Faculty of Engineering, Department of Civil Engineering, Erzurum, Turkey.
2Kastamonu University, Faculty of Engineering and Architecture, Department of Civil Engineering, Kastamonu, Turkey

Keywords

Abstract




Hemp fiber;

 Mortar;

 Compressive strength; 

Capillarity;

 Apparent porosity


In this study, the impact of hemp fibers used in different lengths and ratios on the physical and mechanical properties of mortars has been examined. In this context, the flow diameters, dry unit weight, porosity, bending and compressive strength and capillarity properties of the mortars have been determined. Hemp fiber was used in the lengths of 0.5, 1 and 2 cm and was added to the mixtures in ratios of 1, 2 and 3%. The increase in fiber length and ratio decreased the flow diameter of the mortars and increased the porosity values. In the case of using 3% fiber, the dry unit weight values of the mortars fell below 2100 kg/m3. It is understood from the flexural strength results that the curing process is very important for the improvement of the fiber-matrix interface when hemp fiber is used. As a result, as the fiber ratio increased, the flexural strength increased in both 7 and 28 days. But the increase in fiber ratio decreased the 7 and 28 days compressive strength values. According to the capillary test results, it was observed that the optimum fiber ratio was 1%. As the fiber ratio increased, the capillarity coefficients of the mixtures also increased. Compressive strengths of 50 MPa and above were obtained in mixtures having 1% fiber with a capillarity coefficient of less than 0.10 mm/min0.5. As a result, it was determined that the most suitable fiber length is 1 cm. It has been determined that 1 or 2% fiber content is more suitable in the production of mortars

© 2021 MIM Research Group. All rights reserved.

LATEST News


15/03/2021 Collaboration for ICWET'21: Editorial Board of our journal and Organizing Committee of the6th International Conference on Welding Technologies and Exibition (ICWET’21) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


11/02/2021 Collaboration for ULIBTK 2021: Editorial Board of our journal and Organizing Committee of the 23. Congress on Thermal Science and Technology (ULIBTK 2021) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


31/12/2020 Most Cited Award: 

According to the Editorial Board evaluation, the paper authored by Nelson Batista, Rui Melicio, Victor Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self-start capabilities considering symmetric and asymmetric airfoils" is awarded the 2020 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM).


31/12/2020 Best Paper Award:

According to the Advisory Board decision, the paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 2020 Best Paper Award of Research on Engineering Structures and Materials (RESM).



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LATEST AWARDS


2020 Most Cited Paper Award:

The paper authored by Nelson Batista, Rui Melicio, Victor Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self-start capabilities considering symmetric and asymmetric airfoils" is awarded the


2020 Best Paper Award:

The paper authored by Ahsen Ünal, Işıl Özer, Melek Erol Taygun, Sadriye Küçükbayrak entitled as “Fabrication and in-vitro evaluation of copper doped bioactive glass/polymer composite scaffolds for bone tissue engineering” is awarded the 


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Last Update:

27.09.2021

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