Experimental investigation on chemically treated bamboo reinforced concrete beams and columns

Agarwal, Atul; Nanda, Bharadwaj; Maity, Damodar

doi:10.1016/j.conbuildmat.2014.09.011

Cited by 167 publications

(73 citation statements)

References 14 publications

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“…In the example presented here, unless significantly improved bond is provided, the behaviour is expected to be brittle with the bamboo not providing effective postcracking reinforcement. Such brittle behaviour is reported by Agarwal et al [30], Sevalia et al [31] and Terai and Minami [32]. Even in cases in which the M n C 1.2M cr is satisfied, there are no known studies demonstrating ductility or energy-absorbing capacity of bamboo-reinforced concrete.…”

Section: Development Of Bamboo Barsmentioning

confidence: 73%

“…: 4800/ (300 9 p 9 19)]. This level of bond stress is reported to be achievable using various surface treatments [30,32].…”

Section: Development Of Bamboo Barsmentioning

confidence: 96%

“…In unrelated studies, Ghavami [29], Agarwal et al [30] and Sevalia et al [31] demonstrate the importance of providing at least minimum bamboo reinforcement and appropriate surface treatment to enhance bond. Ghavami [29] found that beams with a 3% ratio of split bamboo reinforcement had four times the ultimate capacity of comparable unreinforced concrete beams.…”

Section: Bamboo-reinforced Concretementioning

confidence: 99%

“…Agarwal et al [30] showed the significant beneficial effects of 'treating' bamboo splints with commercial epoxy-based adhesives in order to enhance bond. They reported average bond stresses (from pull-out tests) on the order of 0.13 MPa for plain bamboo splints (a value echoing the recommendation of Geymayer and Cox [21]) and values as high as 0.59 MPa (350% increase) when Sikadur 32 adhesive was used to coat the splints.…”

Section: Bond and Developmentmentioning

confidence: 99%

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Bamboo reinforced concrete: a critical review

et al. 2018

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The use of small diameter whole-culm (bars) and/or split bamboo (a.k.a. splints or round strips) has often been proposed as an alternative to relatively expensive reinforcing steel in reinforced concrete. The motivation for such replacement is typically cost-bamboo is readily available in many tropical and sub-tropical locations, whereas steel reinforcement is relatively more expensive-and more recently, the drive to find more sustainable alternatives in the construction industry. This review addresses such 'bamboo-reinforced concrete' and assesses its structural and environmental performance as an alternative to steel reinforced concrete. A prototype three bay portal frame, that would not be uncommon in regions of the world where bambooreinforced concrete may be considered, is used to illustrate bamboo reinforced concrete design and as a basis for a life cycle assessment of the same. The authors conclude that, although bamboo is a material with extraordinary mechanical properties, its use in bamboo-reinforced concrete is an ill-considered concept, having significant durability, strength and stiffness issues, and does not meet the environmentally friendly credentials often attributed to it.

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Section: Development Of Bamboo Barsmentioning

confidence: 73%

“…: 4800/ (300 9 p 9 19)]. This level of bond stress is reported to be achievable using various surface treatments [30,32].…”

Section: Development Of Bamboo Barsmentioning

confidence: 96%

Section: Bamboo-reinforced Concretementioning

confidence: 99%

Section: Bond and Developmentmentioning

confidence: 99%

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Bamboo reinforced concrete: a critical review

et al. 2018

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“…It was also verified that bamboo-reinforced beams supported a load 400% greater than the beams without any reinforcement. Agarwal, Nanda, and Maity (2014) performed bending tests on reinforced beams, reinforced with steel, reinforced with treated bamboo and reinforced with untreated bamboo. The results of the bending tests showed that the beams reinforced with treated bamboo obtained a significant increase in the rupture force when compared to the steel beams.…”

Section: Beam Bendingmentioning

confidence: 99%

Structural behavior of reinforced concrete beams strengthened with bamboo splints

et al. 2019

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The aim of this paper is to evaluate through bending tests the structural behavior of reinforced concrete beams additionally reinforced with bamboo splints coated with rubber latex. The bamboo splints are prepared from the stems of the Bambusa vulgaris species and are reinforced in the nodal regions. To examine the strength of adhesion between the bamboo splint and concrete, pull out tests are performed for the specimens. The results of the pullout tests of the test samples show the strengthening of the nodes leading to an increase in the normal tension and rupture of the splint instead of its slip. According to the results of the bending beams, the presence of bamboo splints increases their load capacity when compared with the reference beams. This fact indicates a reduction in the amount of steel required as the structural element. Strengthening the nodes of the bamboo splints provides better performance in terms of deflection and also leads to a slight increase in the beams load capacity. It is worth mentioning that the beams additionally reinforced with bamboo splints reinforced in the nodal region present the same cracking pattern as that of reference beams.

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Bamboo‐reinforced self‐compacting concrete beams for sustainable construction in rural areas

Adom-Asamoah

Osei

Obeng

et al. 2017

Structural Concrete

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The use of bamboo as longitudinal reinforcement, coupled with the application of self-compacted concrete (SCC) in the construction industry, may be a promising solution to issues involving sustainable development in developing countries. This study seeks to investigate the flexural performance of bamboo-reinforced SCC beams with adequate transverse reinforcement. The major design parameters were the shear span-to-depth ratio, the percentage of longitudinal reinforcement, and the maximum size of coarse aggregate. The load-deflection curves, serviceability and ultimate failure characteristics, cracking behavior, and ductility measures were evaluated and discussed among tested beams. Results indicated that their structural performance at service and ultimate failure would be adequate when a material reduction factor of three is used with BS 8110 design code. However, to achieve maximum ductility, the level of longitudinal reinforcement should be in range of 2.6-3.1%. Furthermore, an increase in the size of coarse aggregate will greatly impact the degree of ductility. K E Y W O R D S bamboo, ductility, flexure, RC beams, self-compacting concrete 1 | INTRODUCTIONThe ever-increasing urbanization that mainly emanates from rapid population growth, particularly in developing countries, has placed much pressure on the demand for building materials in the construction sector. Hence, to maintain a sustainable construction industry, several innovative studies have investigated the relative performance of alternative design methods and materials to conventional ideologies. [1][2][3][4] Javadian et al 5 noted that the contribution from developing countries to the overall demand on concrete as a building material is approximately 90%. Additionally, Hebel et al 6 established that developing countries also account for about 80% of the global demand of steel in the construction industry. However, most of such countries are unable to synthesize these materials, particularly cement and steel, and rely heavily on importation from others. Hence, alternative building materials, which are readily available, affordable, and able to exhibit adequate structural behavior under all forms of external loading, are greatly preferred.A suitable option will be to use bamboo as longitudinal reinforcement for concrete structures that are not subjected to severe loading conditions. Extensive researches 3,4,7-10 on the mechanical behavior of bamboo have revealed that it possesses a comparable tensile strength in relation to mild steel and, as such, can serve as a suitable replacement for steel. However, reliable quantification of its tensile strength is problematic as it is naturally occurring, therefore giving bamboo a wide variability in strength. Therefore, studies 3,4,11,12 on its performance have mainly aimed at finding the optimum percentage of reinforcement that gives a maximum level of ductility under loading. Khare 13 recommended that an optimum of 4% longitudinal reinforcement should be utilized in the design of bamboo-reinforced concrete st...

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Experimental investigation on chemically treated bamboo reinforced concrete beams and columns

Cited by 167 publications

References 14 publications

Bamboo reinforced concrete: a critical review

Bamboo reinforced concrete: a critical review

Structural behavior of reinforced concrete beams strengthened with bamboo splints

Bamboo‐reinforced self‐compacting concrete beams for sustainable construction in rural areas

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