Determination of the Tensile Strength of Different Fiber Reinforced Concrete Mixtures

Date

2016-09-21

Author

Ardoğa, Mehmet Kemal
Alam, Burhan
Yaman, İsmail Özgür

Metadata

Show full item record

Item Usage Stats

340
views

0
downloads

Enhancing the tensile performance of concrete is the main advantage when fibers are added to this type of building materials. This improvement is usually measured through indirect methods like bending or split-tensile tests, in a way similar to normal concrete due to the absence of a standard tensile test for such purpose. Naturally, this type of tests does not determine the real tensile strength of the fiber reinforced concrete. Hence an important parameter, that is needed in modelling and designing processes, is not calculated correctly, the thing that makes developing new mixtures rely on indirect results. This work has two goals. The first one, is to develop new mixtures with fiber contents two and three times higher than the normal. The second one is to evaluate the performance of these different fiber reinforced concrete mixtures under direct tension by using a cylindrical dog bone specimen. This rounded specimen helps to minimize the problems of stress concentration and specimen crushing at the gripping area. A variation of polypropylene, polyvinyl alcohol and steel fibers with a length up to 30 mm will be used in dosages of 2, 4 and 6% by volume to produce the different concrete mixtures. Cylindrical and beam specimens will be casted to measure the compressive and flexural strength respectively. Dog bone specimens will be used to determine the tensile strength of the fiber reinforced concrete mixtures. The results of the flexural and tensile tests will be compared to each other to find any correlation between the two test. At the end of the work, the test results are expected to optimize the fiber amount and type needed for highest tensile performance of the developed fiber reinforced concrete mixtures.

Subject Keywords

Fiber reinforced concrete, Concrete tensile test, Fiber dosage, Flexural strength, Tensile strength

URI

https://hdl.handle.net/11511/79753

Conference Name

12 th International Congress on Civil Engineering

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Effect of specimen size, fiber type and concrete strength on the flexural performance of fiber reinforced concrete Güzelce, Aydinç; Yaman, İsmail Özgür; Department of Civil Engineering (2019) To overcome the brittleness of concrete, fiber reinforcement is a commonly used material, which highly increases the toughness of concrete in a cost-effective way. The aim of this study is to assess the effect of different fiber parameters on the flexural behavior of fiber reinforced concrete. Bending tests were performed on two different beam sizes made of 20 different concrete batches. The type and amount of the fibers along with the grade of the concrete were changed to form this batch combination. The f...
Analytical modeling of fiber reinforced composite deep beams Yağmur, Eren; Burak Bakır, Burcu; Department of Civil Engineering (2018) Discrete fibers are often used as reinforcement to increase the tensile and shear strengths of concrete. For many years, the behavior of fiber reinforced composite members has been investigated both experimentally and analytically. The influence of fibers on the behavior of shear critical members is quite significant, therefore, it is inevitable to develop a method, which estimates the shear strength of fiber reinforced composite deep beams realistically. This is why one of the main objectives of this study...
Effect of test methods on the performance of fiber reinforced concrete with different dosages and matrices Hetemoğlu, Yalçın Oğuz; Yaman, İsmail Özgür; Department of Civil Engineering (2018) Through the last few decades, the idea of adding fibers in to concrete has been quite improved, considering the significant contribution of fibers to the mechanical properties of concrete such as tensile strength, energy absorption capacity and ductility. As a result of many intensive research Fiber Reinforced Concrete (FRC) has become a high-tech material that ensures great performance yet needs efficient design and application. However, the lack of a universally accepted approach and standardized test met...
Effect of fiber type and concrete strength on the energy absorption capacity of fiber reinforced concrete plates under quasi-static bending Mercan, Ali Macit; Yaman, İsmail Özgür; Department of Civil Engineering (2019) With all the known solid advantages of concrete, it has also limitations in its mechanical properties, such as low ductility, tensile strength and energy absorption capacity/toughness. In order to eliminate or minimize these limitations, some developments have been worked up by introducing natural or artificial fibers into the concrete mixture. The main scope of this thesis is to observe the effect of different fiber types and dosages on the performance of two different concrete grades. Two steel fibers wit...
Estimation of lightweight expanded clay aggregate concrete’s compressive strength by using meta-analysis Uslu, İlbüke; Yaman, İsmail Özgür; Aktaş, Can Baran; Department of Civil Engineering (2023-1-27) One of the most effective methods of reducing the density of concrete is the incorporation of lightweight aggregates. Lightweight expanded clay aggregate (LECA) is preferred in lightweight concrete production due to its high compressive strength when compared to other lightweight aggregates. The study aims to assess the compressive strength of LECA incorporated lightweight concrete through meta-analysis. Within the scope of the study, more than 140 data points are compiled through literature and analyzed to...

Citation Formats

M. K. Ardoğa, B. Alam, and İ. Ö. Yaman, “Determination of the Tensile Strength of Different Fiber Reinforced Concrete Mixtures,” presented at the 12 th International Congress on Civil Engineering, İstanbul, Türkiye, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/79753.