Influence of bamboo fiber and limestone powder on the properties of self-compacting concrete

Abstract

This paper examines the effect of combined bamboo fibers and limestone powder used as filler material on the fresh, hardened and microstructural properties of self-compacting concrete (SCC). The bamboo fibers of aspect ratio (l/d) of 50 and a maximum length of 50 mm was varied in steps of 0.25%, 0.5%, 0.75% and 1% in the SCC mix. While 10% of limestone powder was added as a filler in each of the SCC mix. The workability of the mix was assessed by slump flow test and V-funnel test, while the mechanical properties were assessed by considering the compressive and split tensile strength test after 7, 14 and 28 curing age. All concrete mixes were carried out by following the European Federation for Specialist Construction Chemicals and Concrete (EFNARC) standard, while the microstructure of selected samples was assessed using the Scanning Electron Microscopy (SEM). Test results indicate that fiber addition influences the fresh properties of SCC. Moreover, it was observed that SCC mix containing with fiber content of 0.75% and 0.5% with the inclusion of 10% limestone powder achieved the highest compressive and split tensile strength values of 28.04 MPa and 3.26 MPa, respectively. The result showed ABOUT THE AUTHORS Anthony Ede is an associate professor of structures and materials at the department of civil engineering, Covenant University, Nigeria. His research interest includes; structural health monitoring and materials characterization.Oluwarotimi Olofinnade is a lecturer at the department of civil engineering, Covenant University, Nigeria. He is currently a visiting researcher at SRM institute, India. His research interest include; sustainable materials, engineering education, green solution to waste management and utilization.Opeyemi Joshua is a lecturer at the department of building technology, Covenant University, Nigeria. His research interest include; built environment and sustainable materials.David Nduka is a lecturer at the department of building technology, Covenant University, Nigeria. He is currently on his Ph.D, and his research interest include; built environment and sustainable materials.Obatarhie A. Oshogbunu is a student at the department of civil engineering, Covenant University, Nigeria. His research focus is on sustainable materials.

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