The construction process is same as that of steel reinforcement. Concrete slump should be as low as workability will allow. Replacement of a steel reinforced beam with a bamboo reinforced beam. For a brittle reinforcing material such as bamboo or glass fibre reinforced polymer gfrp, reinforcement failure is unacceptable resulting in catastrophic failure of the member and thus an overreinforced design is prescribed by which limited ductility is achieved through concrete crushing 11. It is informative to consider the case of gfrpreinforced concrete 11. This study aims at exploring ways of making the useof bamboo reinforced concrete beams simple, efficient and costeffective for rural construction with ghana as a case study. Bamboo reinforced concrete beam structure concrete. Bamboo being a natural building material has the property of absorbing water as discussed earlier.
After casting, the samples of concrete beams reinforced with bamboo and steel were kept in wet place and samples were demoulded after 24 hours. Vegetable fibres can be used either alone or as reinforcement in different types of matrices such as soil and cement composites. Bamboo reinforced members, designed and built as suggested herein, should develop two to four times the ultimate flexural loadcarrying capacity. It achieves this strength through its hollow, tubular structure, evolved over millennia to. A comparative study of bamboo reinforced concrete beams. Materials used the total amount of materials used are as follows. A concise summary regarding bamboo reinforced concrete beams, permanent shutter concrete slabs and columns is discussed.
Bamboo as reinforcement in structural concrete elements. Bamboo usually grows at temperature of 250c to 500c. Performance of wulung bamboo reinforced concrete beams. Transfer of technology 165 the context 166 the means 166 11. A concise summary regarding bamboo reinforced concrete beams, perma nent shutter concrete slabs and columns is discussed. The utilization of bamboo reinforcement as replacement of steel reinforcement is gaining immense importance today, mainly on account of the improvement in the economical aspect combined with ecological benefits. The strength of bamboo as concrete reinforcement is much lower than steel bar reinforcement. A prototype three bay portal frame, that would not be uncommon in regions of the world where bamboo reinforced concrete may be considered, is used to illustrate bamboo reinforced concrete design. Advantages and disadvantages of bamboo as reinforcement. Bamboo should be split and provided in more compact reinforcement layers for better bonding with concrete. Right now very few people are using bamboo in place of steel for reinforcement, but bamboo is an excellent choice for reinforcement in concrete because of its higher strength as compared to steel by weight, the tensile strength bamboo s tensile s. Pdf durability analysis of bamboo as concrete reinforcement. To increase the amount of information concerning bamboo several successful research programs have been carried out since 1979 at pucrio and in brazil. T abstract bamboo is used as a construction material from earlier days of construction.
Bamboo as reinforcement in concrete for low cost housing. Results 4 numbers of bamboo reinforcement cages were casted with a concrete of m30 grade. Bamboo as reinforcement 127 fiber reinforced cement mortar 128 bamboo reinforcing in concrete bamboo for formwork 3 soil reinforcement 3 9. As concrete matrix has a high ph, many authors have discussed the decay of vegetal materials. Performance of bamboo reinforced concrete beam 840 2. Use of bamboo and its strength now in civil engineering, many people are using bamboo in place of steel for reinforcement, but bamboo is an excellent choice for reinforcement in concrete because of its higher strength as compared to steel by weight, the tensile strength bamboo s tensile strength is roughly 28,000 per square inch versus steels 23,000. Bamboo has great tensile strength resistance to being pulled apart than steel and it can withstand compression better than concrete. To study the effect of replacement of steel reinforcement by bamboo reinforcement, designs have been. Also comparison between bamboo reinforced concrete and steel reinforced concrete are made as per requirement according to is456. Hence leaves an option of using bamboo as potential reinforcement in low cost construction. The use of bamboo as reinforcement in portland cement concrete has been studied extensively by clemson agricultural college. I am working with others developing a new kind of town and it would be consonant with the sustainability goals of the project if bamboo could replace some or all of the steel rebars in the concrete construction planned for all the buildings in such towns.
Abstract the results of investigation conducted to evaluate the flexural performance of foamed aerated concrete beams with bamboo splints as tensile. Bond between bamboo and concrete is to be dealt separately. Smith introduction the problems and advantages of the 7. Bamboo in construction technology 349 structures to a large extent. The american concrete institute aci design guidelines are suitable for nondeflectioncritical design and construction of bamboo composite reinforced concrete members. Using wsb to reinforce concrete has many advantages. However, one of the merits is a cheap and replenishable agricultural resource and abundantly available.
In this study the bamboo was used as a reinforcing material without any treatment and stirrups. Bamboo reinforced concrete mix proportion, design and. From test result it was found that load at first crack and ultimate load in bamboo reinforced beam with. The bond stress and slip at the loaded and free ends were measured and recorded. In general, techniques used in conventional reinforced concrete construction need not he changed when bamboo is to be used for reinforcement. Bamboo and reinforcement steel bars as structural member in building construction ogunbiyi, moses a. Efe ikponmwosa, funso falade, christopher fapohunda, james okosun. Use of bamboo as a reinforcing material in concrete was first investigated by us naval civil engineering.
High earlystrength cement is preferred to minimize. Corrugated and noncorrugated bamboo splints were tested, with four different patterns of corrugation. His study was focused on the tensile strength of bamboo and its pullout characteristics. Replacement of steel by bamboo reinforcement iosr journal. This paper represents design and testing of bamboo reinforced concrete column to be casted with bamboo reinforcement varying from 2. Study on bamboo as reinforcement in cement concrete ijera. In trials of tensile strength, bamboo outperforms most other materials, reinforcement steel included. Concrete mix proportions the same mix designs can be used as would normally be used with steel reinforced concrete. Circular bamboo reinforced concrete column with permanent shutter.
Moso type bamboo of mm length each and area based on cross section of bamboo are used. The world timber demand is increasing at a rapid rate but the timber supply is depleting. Designing and building with bamboo humanitarian library. Bamboo is an extremely strong fiber with twice the compressive strength of concreteand roughly the same strength toweight ratio of steel in tension. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Firstly like usual steel reinforcement embedded within concrete. Research and development on bamboo reinforced concrete. Why do we use bamboo in place of steel reinforcement. Dirk hebel bamboo reinforced concrete from the future cities laboratory in singapore.
The limits of usage of bamboo and rattan bars as reinforcement were established with respect to the steel rc beams. Bamboo reinforcement a sustainable alternative to steel. Many researchers have tried to use bamboo as substitute of steel in reinforced concrete. Two natural rebar alternatives for concrete architect. There are few concerns about bamboo before declaring whether it can be used as a substitute of steel in concrete or not. Bamboo has an impermeable protective layer on the outside which protects it from rotting due to water or moisture. For this the surface of bamboo has to be roughened with the application of tar and sand. A comparative study of bamboo reinforced concrete beams using. Bonding between concrete and bamboo as reinforcement is must for design. However, the natural form of bamboo poses many problems when it is used as reinforcement in concrete. Pdf it is a fact that the construction industry is the main consumer of energy and materials in most countries. Reinforced it is irrigated are the area estimated irrigated with that with about raw waste or20partially million water of theconcrete total world irrigated area ha in 50 treated varies around wastewater. However, the use of bamboo as reinforcement in concrete is very limited due to its various uncertainties. Bamboos light weight and relative flexibility make it a particularly attractive alternative for residential construction in seismic regions.
Sep 05, 2015 bamboo reinforced concrete elements 1. Pdf a study on bamboo reinforced concrete beams warse. A study on the use of bamboo as reinforcement to concrete. Thus, bamboo reinforced members tend to have large deflections and wide cracks when loaded to capacity. Concrete mix proportions for bamboo reinforced concrete. Pullout tests were used to measure the bond between bamboo and concrete. The ideal place for growth of bamboo is fully water free area. Bamboo is mainly a tropical and subtropical plant which is found adequate in many countries.
Durability of bamboo and steel reinforcement in concrete elements. Laboratory, california and have published report in 1966. The tension reinforcement is made from the bamboo composite material. Steel reinforced concrete is the most common building material in the world, and developing countries use close to 90% of the cement and 80% of the steel consumed by the global construction sector. Bamboo is rapidly renewable and sequesters carbon, as opposed to the energy and carbonintensive steel. Issn 2278 3083 international journal of science and applied information technology ijsait, vol. Test results proved bamboo to be a worthy alternative to steel and costeffective material to be used as reinforcing in bearing masonry for seismically safe houses. A report of valid theoretical use of bamboo as a reinforcing material in nonload bearing and load bearing members to bring the demand of steel in the market to a minimal level thus reducing carbon emission and the selfweight of the structure. Vaghela4 vishal prajapati5 1assistant professor 2,3,4,5b. This study aims at exploring ways of making the use of bamboo reinforced concrete beams simple, efficient and costeffective for rural construction with ghana as a case study. This study investigates the effectiveness of bamboo as reinforcement in concrete, replacing concretes water mixing component with seawater and substituting 20% of its cement constituent with fly ash. Pdf a comparative study of bamboo reinforced concrete. Youngsi jung 2 at university of texas, arlington studied the use of bamboo as reinforcement in concrete as a substitute steel. Bamboo s light weight and relative flexibility make it a particularly attractive alternative for residential construction in.
If bond behaviour is poor or limited, considerably more bamboo reinforcing material is required. Flexural performance of bamboo reinforced foamed aerated concrete beams with and without compression. Bamboosa tulda, bamboo reinforced concrete beams, flexural strength, tensile strength. Thus, concrete mix proportion for bamboo reinforced concrete must have watercement ratio as low as possible. The web materials considered were bamboo, rattan cane and steel. Chow tested small diameter bamboo culms and splits as a reinforcement material for concrete applications at the mit in bostonvii. This study investigated improving bamboo concrete bond by increasing mechanical interlock. Due to excellent properties like high strength to weight ratio, high tensile strength. This study aims at testing and comparing the tensile strength of bamboo and steel reinforcement bars as. Dirk hebel bamboo strips are tested for strength and resistance to tensile forces. Role of bamboo as reinforcement in construction of. Split bamboo provides better bonding with concrete than whole culms when used as reinforcement.
The middle part of the beam 140 mm contained neither compression nor isbn. Role of bamboo as reinforcement in construction of concrete. Pdf performance evaluation of bamboo reinforced concrete. Furthermore, this assumption assumes that the bond characteristics between reinforcing material and concrete are similar. Rahman et al 2011 evaluated performances of bamboo as reinforced concrete beam and found that for singly bamboo reinforced concrete beam, the load carrying capacity increased about 2 times and. According to the researchers, the modulus of elasticity of bamboo in tension is ab. Introduction bamboo is a likely complex material with a high strengthtoweight ratio helpful for structures. Why bamboo is more stronger than steel reinforcement.
About partners contact bamboo forum question and answers for everything related to bamboo. Experimental investigation of bamboo reinforced concrete slab. Jul 19, 2018 the use of small diameter wholeculm bars andor split bamboo a. It is a comparative study of bamboo reinforced concrete beams with shear links made of different materials. Concrete beams preparation to evaluate the mechanical properties of bamboo composite reinforced concrete, four beams were cast using grade 50 mpa concrete due to its common usage in singapore table 1. The load carrying capacity of the bamboo reinforced beam using square crosssection was higher than bamboo reinforced beams with triangular and circular cross sections. Keywords bamboo bamboo reinforcement bambooreinforced concrete concrete durability life cycle assessment 1 introduction. Its been found through research that bamboo can suitably replace timber and other materials in construction and other works. Bamboo as reinforcement in structural concrete elements khosrow ghavami departmentofcivilengineering,ponti. Concrete is a brittle material so it cannot be used as a single material in construction due to its low tensile strength. Application technology of bamboo reinforced concrete in.
Bamboo as concrete reinforcement civil engineering. Analysis of bamboo reinforced concrete column open access. Comparative studies of steel, bamboo and rattan as. Ironically, many of the countries that would benefit from bamboo reinforcement also lack the resources to develop it as a viable alternative to the steel on which they currently rely. What is wastewater ww wastewater ww is a combination of the. Watercement ratio plays an important role in strength and durability of reinforced concrete. In this study of the project bamboo as reinforcement in that we are taken tensile test on bamboo, properties of bamboo, concrete mix design for m20 grade, bamboo strips was used as a reinforcing material with. Scholar 1,2,3,4,5department of civil engineering 1,2,3,4,5s. Ten bambooreinforced concrete simply supported beams were tested to failure under thirdpoint loading, and six other beams were subjected to longterm loading. He discovered that the use of bamboo increased the loadcarrying capacity of plain concrete beams by as much as 250%, and developed 35% of loadcarrying capacity of equivalent reinforced concrete. This study investigates the effectiveness of bamboo as reinforcement in concrete, replacing concrete s water mixing component with seawater and substituting 20% of its cement constituent with fly ash.
The motivation for such replacement is typically costbamboo is readily available in many tropical and subtropical locations, whereas steel reinforcement is relatively more expensiveand. Experimental investigations structural behaviour of concrete beams reinforced with bamboo, rattan and steel was comparatively evaluated experimentally in two folds. Durability analysis of bamboo as concrete reinforcement. It was used as reinforcement in rural area and as formwork also. Building a large post frame garage full timelapse construction. The aim of this paper is to study the flexural strength of concrete beam with wulung bamboo that has been in the notch as reinforcement.
It is a boon for light weight and temporary buildings. Tentative design and construction recommendations for the use of bamboo as an expedient reinforcement are formulated. This study demonstrates that there is significant potential for practical implementation of the bamboo composite reinforcement described in this paper. Scribd is the worlds largest social reading and publishing site. Apr 01, 2017 the effectiveness of using linseed oil for waterproofing corrugated and noncorrugated bamboo splints was also investigated. Bamboo is a high strength material that can be used, in certain cases, as reinforcement in concrete. If you continue browsing the site, you agree to the use of cookies on this website. Further, shear reinforcement for flexure was used in the shear span at close spacing of 70 mm center to center distance. Preliminary results of a study of the feasibility of using bamboo as an expedient reinforcement for temporary reinforced concrete structures are summarized. Bamboo rebars, bamboo reinforced masonry, earthquake safety, indian housing, low. Abstract bamboo is used as a construction material from earlier days of construction.
Finally, some recommendations for future studies are proposed with the hope that the newly developed material could contribute, on a large scale, to sustainable development without harming our globe. Bamboo as reinforcement is bamboo stronger than steel. Flexural performance of bamboo reinforced foamed aerated. At the asian institute of technology, a 6 m3 capacity bamboo reinforced cement water tank was constructed in june 1983.
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