<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The purpose of the article is to determine the effect of the addition of polypropylene fibres on the properties of concrete mixtures and hardened concrete. To this end, both destructive and non-destructive tests were conducted. The concrete mixture tests included the testing of the consistency, air content and bulk density of the concrete mixture. Investigations of hardened concrete were based on the determination of compressive strength by destructive tests, sclerometer and ultrasonic methods and tensile strength in bending tests. All tests were performed for seven series of concrete mixtures, differing in their fibre content. The results showed that the addition of polypropylene fibres to the concrete mixture causes changes in consistency, increases air content, and does not increase the compressive and tensile strength of concrete. It was also observed that the addition of polypropylene fibres does not cause significant changes in the bulk density of the concrete mix.</p></abstract>

The purpose of the article is to determine the effect of the addition of polypropylene fibres on the properties of concrete mixtures and hardened concrete. To this end, both destructive and non-destructive tests were conducted. The concrete mixture tests included the testing of the consistency, air content and bulk density of the concrete mixture. Investigations of hardened concrete were based on the determination of compressive strength by destructive tests, sclerometer and ultrasonic methods and tensile strength in bending tests. All tests were performed for seven series of concrete mixtures, differing in their fibre content. The results showed that the addition of polypropylene fibres to the concrete mixture causes changes in consistency, increases air content, and does not increase the compressive and tensile strength of concrete. It was also observed that the addition of polypropylene fibres does not cause significant changes in the bulk density of the concrete mix.

The Influence of Polypropylene Fibres on the Properties of Fresh and Hardened Concrete

Wroclaw University of Science and Technology

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

The purpose of the article is to determine the effect of the addition of polypropylene fibres on the properties of concrete mixtures and hardened concrete. To...

The Influence of Polypropylene Fibres on the Properties of Fresh and Hardened Concrete

Published Online: May 16, 2020

Page range: 71 - 82

Received: Apr 15, 2019

DOI: https://doi.org/10.4467/2353737XCT.19.055.10579

Keywords
fibre-reinforced concrete, polypropylene fibres, dispersed reinforcement, fresh concrete mixture, hardened concrete

© 2020 Adrian Chajec et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

The Influence of Polypropylene Fibres on the Properties of Fresh and Hardened Concrete

Published Online: May 16, 2020

Page range: 71 - 82

Received: Apr 15, 2019

DOI: https://doi.org/10.4467/2353737XCT.19.055.10579

Keywordsfibre-reinforced concrete, polypropylene fibres, dispersed reinforcement, fresh concrete mixture, hardened concrete

© 2020 Adrian Chajec et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Keywords
fibre-reinforced concrete, polypropylene fibres, dispersed reinforcement, fresh concrete mixture, hardened concrete