Effect of test methods on the performance of fiber reinforced concrete with different dosages and matrices

Download

index.pdf

Date

2018

Author

Hetemoğlu, Yalçın Oğuz

Metadata

Show full item record

Item Usage Stats

382
views

155
downloads

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 method for the performance analyses of FRC is one of the main obstacles in the process of providing the optimum combination between the fiber type, fiber volume and the matrix character of the concrete. This study investigates the performance of polypropylene fiber reinforced concrete with fiber dosages of 3, 6 and 9 kg/m3 for two different types of concrete, high performance and pervious concrete, by determining the energy absorption capacities through centrally loaded round and square panel tests. For this scope, three specimens for each concrete type and shape were prepared and tested under displacement control mode to obtain the load deflection curve for each specimen. The energy absorption capacities were then calculated for a displacement up to 25 mm. The two test methods also were compared considering the energy absorption capacities, cracking lengths and variability of test results. Then energy relationship between these two test methods was formulated.

Subject Keywords

Concrete, Reinforced concrete., Textile fibers, Synthetic., Fiber-reinforced concrete.

URI

http://etd.lib.metu.edu.tr/upload/12622030/index.pdf
https://hdl.handle.net/11511/27242

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

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...
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...
Effect of triisopropanol amine and calcium nitrate on the strength development of glass fiber reinforced concrete t Alkılıç, Mustafa Onur; Yaman, İsmail Özgür; Öztürk, Abdullah; Department of Cement Engineering (2015) This thesis work aims to research the possibility of acceleration in strength development by the use of Calcium Nitrate (Ca(NO3)2) and Triisopropanol Amine (TIPA) in the production of glass fiber reinforced concrete, also known as GFRC or GRC. In conventional cementitious systems, Ca(NO3)2 is used as an accelerator, and TIPA is typically used as a grinding agent for cement. In this thesis study TIPA is used in order to increase the ultimate strength of the concrete whose early strengths are increased by Ca(...
Effect of Synthetic Fibers on Energy Absorption Capacity of Normal and High Performance Concrete Şengün, Emin; Alam, Burhan; Yaman, İsmail Özgür (null; 2016-06-08) With the increasing aim of incorporating concrete in different applications and infrastructure elements, the use of macro synthetic fiber incorporated concretes has become real popular thanks to their high energy absorption capacity, toughness and impact resistance. The aim of this study is to investigate the effects of synthetic fibers on toughness and energy absorption of normal and high performance concretes. For this experimental study, eight concrete groups were designed using synthetic fibers of vario...
Effect of synthetic fibers on flexural performance of normal and high performance concrete Şengün, Emin; Alam, Burhan; Yaman, İsmail Özgür (null; 2016-09-19) Macro synthetic fiber incorporated concretes are increasingly used for concrete applications owing to their high energy absorption capacity, toughness and impact resistance. The aim of this study is twofold; first to investigate the effects of synthetic fibers on the flexural performance and thus the energy absorption characteristics of normal and high performance concrete (HPC), and secondly to investigate the effects of specimen size. For this experimental study, eight concrete groups were designed using ...

Citation Formats

Y. O. Hetemoğlu, “Effect of test methods on the performance of fiber reinforced concrete with different dosages and matrices,” M.S. - Master of Science, Middle East Technical University, 2018.