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Experimental investigation on mechanical, durable and stress–strain behaviour of hybrid reinforced concrete admixed BC soil: a novel use of waste fibers to reduce disposal challenges

Experimental investigation on mechanical, durable and stress–strain behaviour of hybrid... Utilizing natural wastes and biomasses has become focused in recent years for engineering construction to meet environmental sustainability requirements, economical energy savings, and growth in design elements. Concrete reinforced with fibers helps to enhance the strength properties. Incorporating fiber reinforcement with black cotton (BC) soil is capable of improving durable properties. It is susceptible to early age concrete due to the blending of hybridization of fiber is an alternative solution. The objective is to find the feasibility of using fibers with and without BC (black cotton) soil and the optimum dosages. In this study, three types of fibers, Masson pine needle (MPNF), polypropylene and basalt fiber were used for the hybridization. Expansive soils consumption mostly poses construction challenges. To overcome this, BC soil is chosen in this work. Various mechanical and durability tests were conducted on the concrete specimens, and for each test, three samples are considered, and average results are determined. Compared with normal concrete, test results determined that splitting tensile strength and impact strength at 28 days increases from 4.8 to 7.4 MPa and 32 to 55 MPa. There is a considerable increase in flexural strength when fibre is incorporated with 2% BC soil, and it is observed as 36–82.34% at 28 days. Beyond 6% of HF with 2% of BC soil results in a reduction of strength. The maximum alkalinity is obtained for hybrid fibre reinforced up to 6% HF with 2% BC soil (HFBCC2 mix) concrete. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Building Pathology and Rehabilitation Springer Journals

Experimental investigation on mechanical, durable and stress–strain behaviour of hybrid reinforced concrete admixed BC soil: a novel use of waste fibers to reduce disposal challenges

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References (38)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2021
ISSN
2365-3159
eISSN
2365-3167
DOI
10.1007/s41024-021-00154-x
Publisher site
See Article on Publisher Site

Abstract

Utilizing natural wastes and biomasses has become focused in recent years for engineering construction to meet environmental sustainability requirements, economical energy savings, and growth in design elements. Concrete reinforced with fibers helps to enhance the strength properties. Incorporating fiber reinforcement with black cotton (BC) soil is capable of improving durable properties. It is susceptible to early age concrete due to the blending of hybridization of fiber is an alternative solution. The objective is to find the feasibility of using fibers with and without BC (black cotton) soil and the optimum dosages. In this study, three types of fibers, Masson pine needle (MPNF), polypropylene and basalt fiber were used for the hybridization. Expansive soils consumption mostly poses construction challenges. To overcome this, BC soil is chosen in this work. Various mechanical and durability tests were conducted on the concrete specimens, and for each test, three samples are considered, and average results are determined. Compared with normal concrete, test results determined that splitting tensile strength and impact strength at 28 days increases from 4.8 to 7.4 MPa and 32 to 55 MPa. There is a considerable increase in flexural strength when fibre is incorporated with 2% BC soil, and it is observed as 36–82.34% at 28 days. Beyond 6% of HF with 2% of BC soil results in a reduction of strength. The maximum alkalinity is obtained for hybrid fibre reinforced up to 6% HF with 2% BC soil (HFBCC2 mix) concrete.

Journal

Journal of Building Pathology and Rehabilitation – Springer Journals

Published: Dec 1, 2022

Keywords: High performance concrete; Hybrid fiber orientation; Mechanical properties; BC soil; Stress–strain behaviour

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