Flexural Response of RC beams cast with normal and steel fibre concrete internally reinforced with various types of FRP bars

doi:10.14256/jce.3009.2020

Cited by 3 publications

(2 citation statements)

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“…In the literature, it has been stated that the use of steel fibres with three different slenderness (L/d) values such as 80, 65, and 55 in concrete production, as well as steel fibre with hook ends with different slenderness values and proportions, reduces the compressive strength of concrete. However, it has been reported that it significantly increases tensile and flexural strengths, and when up to 1.5 % steel fibre is used in concrete, the compressive strength of concrete varies by up to ±25 % compared to that of non-fibre concrete [35][36][37][38][39][40][41]. Figure 12 shows that at the end of the 28-day compressive strength test, all specimens met the minimum characteristic compressive strength (C 30/37) requirement according to the TCK Specifications.…”

Section: Compressive Strength Test Resultsmentioning

confidence: 96%

Analysis of fibre reinforced concrete for road pavements on very weak soils

2023

JCE

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In this paper, the effects of steel fibre usage on concrete pavement thickness and cost were investigated. Prepared fibrous concrete specimens were subjected to physical and mechanical tests. From the experiments, it was determined that as the steel fibre ratio increased, the workability and compressive strength of the specimens decreased, but the flexural and splitting tensile strengths increased. In addition, according to calculations made using the AASHTO 1993 design method, the concrete pavement thickness decreased in the range of 4.35 to 18.66 % with an increase in steel fibre, but the pavement cost increased by 56.50 to 74.07 %.

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Section: Compressive Strength Test Resultsmentioning

confidence: 96%

Analysis of fibre reinforced concrete for road pavements on very weak soils

2023

JCE

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“…Glass fiber is used for determining the stiffness and ductility in polymer concrete. Fibers are used in 0 % and 1.5 % polymer concrete [4]. Fibers are used in 0.5 % and 0.1 % concrete for determining the mechanical behavior of the concrete [5].…”

Section: Introductionmentioning

confidence: 99%

Structural behavior of single bay two-story basalt fiber reinforced concrete frame

Lakušić¹

2023

JCE

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This study focuses on structural design, which is a primary aspect of civil engineering. Investigating the behavior of reinforced concrete (RC) frame systems subjected to lateral loading and estimating the damage state of a structure still remain challenging tasks in civil engineering. Reinforced concrete is currently used in a majority of constructions and Conventional buildings remain vulnerable to seismic earthquakes. The aim of this research is to identify how well RC frames with basalt and steel fibers perform under cyclic loading. Steel and basalt fibers are chopped to a size of 2.5 cm. The reinforcements details are made according to IS 13920-2016. The concrete specimen used for this work is in the form of a single-bay, two-story frame, which is composed of reinforced concrete along with chopped steel and basalt fibers of two different proportions. Three frames are cast. One is a RC concrete frame with no fiber materials (conventional concrete) and the other two frames are cast with different proportions of fiber content. The basalt fiber is added to the specimens in proportions of 0.25 % and 0.50 %. The experimental outcome attained from the specimens of 0.25 % of basalt fiber has superior load-carrying capacity as well as minimum story drift than the other two frames. The ductile behavior of BFRC is increased compared to that in conventional ones. It is observed that the crack width of the BFRC is less when compared to that in the conventional concrete.

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