INFLUENCE OF CARROT FIBER ON THE PHYSICAL AND MECHANICAL PROPERTIES OF CONCRETE F'C=210KG/CM², TRUJILLO (#1990)

Authors

Carrera Farro, Martin Eduardo

Garay Chavez, Jenny Marleny

Abstract

The main objective of this research is to determine the influence of carrot fiber (CF) on the physical and mechanical properties of structural concrete with a compressive strength of F'c=210 kg/cm², assessing its viability as an eco-friendly material for the construction sector. Tests were conducted in accordance with national and international standards on 60 cylindrical specimens measuring 15 x 30 cm (NTP 339.034), 60 specimens for tensile strength (NTP 339.059), and 30 prismatic beams measuring 15 x 15 x 45 cm (NTP 339.084), incorporating various percentages of carrot fiber (0.00%, 0.45%, 0.50%, 0.55%, and 0.60%), subjected to curing periods of 7, 14, 28, and 56 days. Additionally, two pilot structures measuring 0.50 m x 0.50 m x 0.50 m were designed using standard concrete and concrete modified with 0.50% CF. These structures underwent diamantina tests to extract core samples and measure in-situ strength according to NTP 339.181 and ASTM C805. The results showed that the incorporation of carrot fiber significantly improved the physical and mechanical properties of concrete, with increases of 6.43% in compressive strength, 7.80% in tensile strength, and 7.86% in flexural strength compared to the standard mix. Furthermore, In the case of the resistance of the witnesses of the in situ tests, an increase of 4.07% is observed, the modified concrete maintained adequate workability and durability without compromising structural cohesion. This research concludes that carrot fiber is a viable additive that improves the performance of structural concrete, promoting environmentally responsible practices in construction.