NDLI: Mechanical Properties of Hybrid Structures Incorporating Nano-Silica and Basalt Fiber Pellets

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Mechanical Properties of Hybrid Structures Incorporating Nano-Silica and Basalt Fiber Pellets

Content Provider	MDPI
Author	Bediwy, Ahmed El-Salakawy, Ehab F.
Copyright Year	2021
Description	Recently, developing a nonferrous reinforcement system (corrosion-free system) using durable and ductile cement-based materials that incorporate discrete fibers has been a promising option for exposed concrete structures in cold regions or marine environments. Therefore, in this study, properties of a novel type of cementitious composite comprising nano-silica and a high dosage of slag were investigated. The hybrid (layered) composites assessed in this study were composed of two layers of different types of cementitious composites. Normal concrete (NC) was used in the top layer combined with a layer of fiber-reinforced cementitious composite (FRCC) reinforced with either the recently developed basalt fiber (BF) pellets (basalt fiber strands encapsulated by a polymeric resin or steel fibers (SF)) that were used at different dosages. The post-cracking behavior in terms of residual strength, residual index, and toughness are presented and discussed. The analysis of results showed the effectiveness of the BF pellets in enhancing the post-cracking behavior of specimens, as they behaved comparably to counterpart specimens comprising SF, which makes them a good candidate for infrastructural applications including rehabilitation such as new bridge girders or overlays.
Ending Page	928
Page Count	20
Starting Page	909
e-ISSN	26734109
DOI	10.3390/civileng2040049
Journal	CivilEng
Issue Number	4
Volume Number	2
Language	English
Publisher	MDPI
Publisher Date	2021-10-14
Access Restriction	Open
Subject Keyword	CivilEng Civileng Civil Engineering Basalt Fiber Pellets Fiber-reinforced Cementitious Composites Nano-silica Layered Concrete Structures Post-cracking Behavior Slag Steel Fibers
Content Type	Text
Resource Type	Article

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