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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
A Comparative Study of Bamboo Reinforced Vs Steel Reinforced Concrete Structure2022 •
The building industry is the leading consumer of energy and materials in the majority of nations. Concrete is strong in compression but weak in tensile strength. To obtain tensile strength, steel is added as reinforcement in concrete. Bamboo has a high compressive and tensile strength. As a result, the use of bamboo as a structural building material is gaining popularity, Bamboo is one of the oldest building materials on the planet. Bamboo is been used for bridges, scaffolding, dwellings, and other temporary structures from early times. This review paper is a theoretical demonstration of the extensive use of bamboo as reinforcement in construction and its detailed use in substitution for steel. The goal is to find ways to make the use of bamboo reinforced concrete beams simple, efficient, and cost-effective.
In today’s world construction industry is the highest consumer of the available natural resources, thereby making sustainable development a major issue of concern in order to satisfy the ever increasing demands of the world’s inflated population, leading to use of alternate building materials. Bamboo being a natural composite product and due to its many positive aspects such as availability, serviceability, strength and economy can be considered as an alternate building material in place of steel. In this study an attempt has been made to investigate the material properties of locally available species- Bamboosa Tulda and its flexural performance in beams as tension reinforcement. An average of 440N/mm2 of tensile strength was determined experimentally for bamboo splints and a better flexural performance was observed for beams with more numbers of reinforcements and shear links than those without. The test results i.e. flexural strength of 7, 28, and 45 days were taken into consideration for comparison purpose. Moreover remarkable reduction in the mid span deflection in concrete beams was observed when provided with bamboo reinforcements. Hence leaves an option of using bamboo as potential reinforcement in low cost construction.
2020 •
Bamboo which is fast growing and ecologically friendly material for structural applications and is being considered as quite appropriate. The tensile strength of bamboo is high and can reach up to 125 to 150 mpa. This makes bamboo an pretty alternative to steel in reinforcement loading applications. The bamboo reinforced concrete composite elements can be used as alternate for concrete, steel and wood used in housing and other products required in the day to day applications. In this study it has been attempted to develop engineered bamboo structural elements for use in low cost housing or G+1 structures. All the experiment were carried on Universal testing machine with capacity of 1000 KN. Tensile strength test of Manga and Dagdi bamboo specimens, compressive strength test on concrete cubes of (150x150x150mm), and flexural strength test on bamboo reinforced beams of (150x150x700mm) were casted and compared with the steel reinforced conventional beam. The results displayed significant nonlinearity, representing that the bamboo has the capacity to absorb energy to some extent. Bamboo concrete composite structural members can provide tailored solutions to the eco-housing initiatives at cheaper costs. The results obtained accrue the advantage obtained by the composite members when compared that to conventional reinforced concrete.
Journal of Renewable Materials
A Review on the Mechanical Behaviour of Bamboo Reinforced Concrete BeamsThe paper presents the last research on bamboo reinforced concrete in Brawijaya University Indonesia. Three kinds of structures studied in recent year, the mounting of pegs on reinforcement, the use of lightweight brick to reduce the weight of the beams, and the use the light weight aggregate for bamboo concrete composite frame. All that experiments overcome some problems exist in using bamboo as environmental acceptance structures.
Problems encountered with the commonly used construction materials like steel are high cost, corrosion, etc. The urge to overcome these problems without the tensile capacity of reinforced concrete being compromised, has prompted numerous scientists and engineers to seek out locally sourced materials as a replacement for conventional steel reinforcement. Specifically, bamboo is one of the most suitable materials to substitute for reinforcing bar in concrete. This study assessed the suitability of bamboo as reinforcement in concrete. Tests were conducted on both fresh and hardened reinforced concrete. The slump value of 6mm was measure. The compressive strength of 28 days gave the value of 25.26N/mm2 which according to BS code 8110 is satisfactory. For the flexural test, three beam specimens were tested for each of steel reinforcement, bamboo reinforcement and mass reinforcement. For the steel reinforced beam, maximum deflection (4mm) occurred at failure load of 162kN, while the deflection width of beam specimen which was reinforced with bamboo is 6mm at the failure load of 102kN and the deflection width of beam specimen used as control which had no reinforcement was 15mm at the failure load of 95kN. The results showed that steel reinforced beam had the highest strength to withstand load. However, bamboo reinforced beam strength was higher than that of plain concrete beam; hence, it can be used for light load bearing reinforced concrete. Key words: Reinforcement, Steel, Bamboo, Concrete, Flexural test, Compressive test.
The use of steel, one of the essential materials for structural reinforcement in the construction industry, is plagued by rise in cost, degradation of non-renewable materials, pollution due to industrial production and sharp practices on quality. In the light of this, bamboo, being a common plant growing all over the world, strong, dense, flexible and elastic in nature, is being considered as an alternative reinforcement material in concrete structures. This work assessed the structural performance of bamboo relative to its ability to structurally support concrete in compression. Matured and seasoned bamboo culms of over 40 and 10 mm in diameter and thickness, respectively, were used. Bamboo splints of various width sizes of 12, 16, 20 and 25mm were cut, prepared and used. These were compared with 12mm high yield (HY) steel reinforcement and in terms of its tensile strength, compression strength and bending stresses. Bamboo width seizes were also adopted as concrete reinforcement and the reinforced concrete beam tested for flexural strength at 7, 28 and 56 days. Ultimate tensile strengths result of 12, 16, 20 and 25mm bamboo rods were 60, 44, 33 and 29% of the strength of 12mm HY diameter steel bar of 583.48 N/mm². 150 mm high culms gave average of 62 N/mm² in compression strength. Average flexural resistance of 500mm span bamboo was 8.5N/mm². Flexural strength investigation performance at 28 days for reinforced concrete beam containing 6 nos 12 mm bamboo rods were 50% of the value of singly reinforced concrete beam containing 12mm HY reinforced bar. Corresponding values for beams reinforced with 8nos 16mm bamboo width size, 2 nos 20mm width size, and 4 nos 25mm width size were 55.2%, 50.9% and 52.4%, respectively, these being the highest performances observed. The study revealed that bamboo splints of the stated width sizes and above can be used for lightweight structural construction due to their strength characteristics.
2014 •
Concrete is an extensively used construction material for its various advantages such as low cost, availability, fire resistance etc. But it cannot be used alone everywhere because of its low tensile strength. So, generally steel is used to reinforce the concrete. But considering high cost of steel, bamboo is one of the suitable replacements of reinforcing bar in concrete for low cost constructions. Bamboo is natural, cheap, widely available and most importantly strong in both tension and compression. To see the effect of bamboo fibre on compressive and flexure strength, bamboo reinforced Concrete cubes have been tested. On comparing the results with plain concrete cubes, strength becomes double in 50 days testing. Further singly and doubly reinforced beam with bamboo sticks have been cast and tested in flexure. It has been found that there is remarkably increase in the flexural strength and Modulus of elasticity of bamboo reinforced beam.
Bamboo has been a very fascinating natural material useful in almost all aspects of life. Bamboo is a light weight, tensile, flexible, sustainable, eco friendly, green material and its use shall be advocated in building construction for sustainable development. Researchers are working to find its suitability as a concrete composite material. This paper evaluates bamboo reinforced concrete beam with four point loading. The load elongation curve was plotted and load at first crack, ultimate bending moment at failure was studied. The values of maximum bending stresses at extreme concrete fibre and the concrete surrounding reinforcement were found. Ultimate experimental stresses, design stresses were compared. This paper envisages experimental program, analytical results of bamboo reinforced concrete beam.
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