IX INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN
CIVIL ENGINEERING
BOOK OF ABSTRACTS , 2024.y., pp. 43-43
THE INFLUENCE OF BASALT FIBERS ON THE COMPRESSIVE AND FLEXURAL STRENGTH OF LIGHTWEIGHT CONCRETE| |
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| DOI: 10.14415/CACE2024.20 |
| UDC: 666.193:691.327.32 |
| CC-BY-SA 4.0 license |
| Author : Perčić, Ivana; Čeh, Arpad; Goleš, Danica |
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| | Summary: |
| | The composition and proportions of the mixture, as well as the properties of its components, are among the most important factors that affect the properties of fresh and hardened lightweight aggregate concrete (LWAC) and fiber reinforced lightweight aggregate concrete (LWAFRC). The aim of this paper is to evaluate, through own experimental tests and analysis of the results presented in the available literature, the impact of the addition of basalt fibers on the compressive and flexural strength of lightweight aggregate concrete, as well as their development over time. In the experimental part, samples of lightweight aggregate concrete made of ordinary cement with the addition of fly ash and a combination of crushed aggregate and liapore were tested. Basalt fibers were added to the mixture in the amount of 0,21%, 0,63% and 1,27% in relation to the total volume of fresh concrete. Control samples were made without the addition of fibers. Compressive and flexural strength tests were performed at the age of 7, 28 and 60 days. Based on the conducted tests and literature review, it can be concluded that the addition of basalt fibers increases the compressive and flexural strength of LWAC at all ages, as well as that this increasement is more pronounced in concretes with higher fiber content. However, significant discrepancies were observed in the results of different authors, so it is necessary to conduct additional extensive experimental research. |
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| | Keywords: |
| | LIGHTWEIGHT AGGREGATE CONCRET, BASALT FIBERS, COMPRESSIVE STRENGTH, FLEXURAL STRENGTH |
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