Use of basalt fibers for concrete structures

Authors

Cory High, NC State University
Hatem M. Seliem, Helwan University
Adel El-Safty, University of North FloridaFollow
Sami H. Rizkalla, NC State University

Document Type

Article

Publication Date

10-15-2015

Abstract

This study investigated the use of basalt fiber bars as flexural reinforcement for concrete members and the use of chopped basalt fibers as an additive to enhance the mechanical properties of concrete. The material characteristics and development length of two commercially-available basalt fiber bars were evaluated. Test results indicate that flexural design of concrete members reinforced with basalt fiber bars should ensure compression failure and satisfying the serviceability requirements. ACI 440.1R-06 accurately predicts the flexural capacity of members reinforced with basalt bars, but it significantly underestimates the deflection at service load level. Use of chopped basalt fibers had little effect on the concrete compressive strength; however, significantly enhanced its flexural modulus.

Publication Title

Construction and Building Materials

Volume

96

First Page

37

Last Page

46

Digital Object Identifier (DOI)

10.1016/j.conbuildmat.2015.07.138

ISSN

09500618

Citation Information

High, Seliem, H. M., El-Safty, A., & Rizkalla, S. H. (2015). Use of basalt fibers for concrete structures. Construction & Building Materials, 96, 37–46. https://doi.org/10.1016/j.conbuildmat.2015.07.138