They found that there was adequate bonding between the coconut shell aggregate concrete and the steel bars. Ganiron [6] used coconut shells and fiber as substitute for aggregates in developing concrete hollow block. The study was carried out for various percentage of coconut shell content as partial replacement of conventional aggregate.
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The possibility of utilizing recycled coconut shell aggregates in concrete as coarse aggregate is examined in the present study. An optimum percentage replacement of coarse aggregate with coconut shell aggregate is determined from the study. Coarse aggregate made from coconut shells were used in proportions of 5%, 10%, 15%, 20%, 25%, 30% and 35 ...
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This work's primary goal is to assess the qualities of concrete that has been hardened and fresh using fly ash and coconut shell. These days, a lot of research is being done to identify substitute building materials because cement and other elements required to make concrete are becoming scarce. In this experimental inquiry, we consistently employed 30% fly ash as cement and 10% …
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Results revealed that with 40% replacement of conventional coarse aggregate by coconut shell, 7 days compressive strength of concrete decreased by 62.6%; whereas …
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Natural coarse aggregate (NCA) comprises more than 50% of concrete. Although it has a significantly lower carbon footprint than cement, its mining still causes severe effects on the outlook of the natural environment [2, 18].Therefore, the use of recycled coarse aggregates (RCA) in our built environment is being encouraged to conserve the natural resources [[21], [22], [23], …
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This document presents a study on the use of coconut shells as a partial replacement for coarse aggregates in concrete. Three mixes were tested with 0%, 25%, and 50% replacement of coconut shells. 36 concrete specimens were cast and tested to determine properties like compressive and tensile strength.
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The ultimate bond strength of coconut shell aggregate concrete under all types of curing conditions was much higher compared to the theoretical bond strength as per BS 8110 and IS 456. Bonding ...
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The test specimens are a 15cm×30cm cylinder. The material testing of crushed stone as coarse aggregate and sand as fine aggregate was prepared according to the Indonesian Standard of Testing (SNI 7656-2012). The experimental purpose is to make light concrete mixtures with coconut shell charcoal to decrease the substantial weight of concrete.
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tests of cement, sand, aggregate and concrete was done as per IS code. The concrete blocks with coconut shells of grade M20 were examined for compressive strength, water absorption and compared with conventional concrete of same grade and the cost is also compared. Key words: Cocnut Shells, Concrete, Aggregate, Strength. INTRODUCTION Now-a-days ...
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Previous studies investigated the use of coconut shell ash (CSA) waste as a partial substitute for cement. Based on the properties of CSA wastes, it was found that CSA wastes could function as a pozzolanic material in concrete, which improves the mechanical properties of concrete, such as compressive strength (Utsev and Taku, 2012).Additionally, as the water …
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estr Journal of Engineering Science and Technology Review 6 (5) (2013) 7-14 Research Article Sustainable Management of Waste Coconut Shells as Aggregates in Concrete Mixture
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By use of coconut its shell remains as by-product which can be useful for construction work in place of coarse aggregate. Coconut shell is hard in nature and does not deteriorate easily …
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Based on the reviewed literature, concrete containing coconut shell as coarse aggregate with normal sand as fine showed the 28-day compressive strength between 2 and 36 MPa with the dried density ...
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This study presents experimental test results of green concrete made of coconut shell as an alternative for normal coarse aggregate in concrete mixtures for developing a …
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Kamal et al. (2015) investigated the coconut shell concrete by considering the particle size in the range of 10 to 20 mm after the crushed materials were washed and allowed to dry under normal ...
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For coconut shell aggregate to be used efficiently for construction purposes, it is imperative to investigateitsproperties. Therefore, this study examined the effect of coconut shell as fine and …
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Results revealed that with 40% replacement of conventional coarse aggregate by coconut shell, 7 days compressive strength of concrete decreased by 62.6%; whereas decrease in 28 days...
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This review article highlights the physical, mechanical, and chemical properties of coconut shells, and the fresh and hardened properties of the coconut shell concrete are summarized and were...
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AIMS OF THE PROJECTA • 1.To determine various alternatives available for coarse aggregate. • 2.To carryout a detail analysis on coconut shells as a coarse aggregate in concrete. • 3.To prepare a methodology for the project & its analysis. • 4.To enlist advantages & short comes of coconut shell as a coarse aggregate material. • 5.To ...
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The absorption capacity of coconut shell (CS) aggregates is 20–25% absorption due to their inherent porosity. Hence, if CS is treated, there are chances of reducing its porosity from 2.370 to 0.315% and, in turn, may enhance its durability performances when used in concrete production. Therefore, this study has investigated the impact of treated CS aggregate …
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Owing to the high-water absorption of coconut shells, presoaked coconut shells were replaced as coarse aggregate with 5, 10, 15, 20, and 25% in M30 grade concrete. Slump, …
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The properties of coconut shell and coconut shell aggregate concrete is examined and the use of coconut shell aggregate in construction is tested. The project paper aims at analyzing flexural and compressive strength characteristics of with partial replacement using M30 grade concrete. The project also aims to show that Coconut shell aggregate ...
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The research aimed to identify the potentiality of coconut shells and coir fiber as partial coarse aggregate replacement to concrete hollow blocks in terms of compressive strength, water...
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In this investigation, coconut shell, a lightweight agricultural waste, is used to completely replace coarse material. Based on previous findings, it is suggested that coconut shell be used as …
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Recycled Concrete Aggregate (RCA) faces challenges from iron residues affecting its durability and structural integrity. Research shows coconut shell biochar (CSB) can remove iron residues and act as a filler, enhancing RCA's performance. This promotes sustainable, durable construction using recycled materials and biochar additives.
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with coconut shells as coarse aggregate replacement. The concrete obtained using coconut shell aggregates satisfies the minimum requirements of concrete. Concrete using coconut shell aggregates resulted in acceptable strength required for structural concrete. Coconut shell may offer itself as a coarse
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Concrete using Coconut Shell aggregates resulted in acceptable strength required for structural concrete. Coconut Shell may offer itself
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the common blends of coconut shell concrete ranged from 1930 to 1970 kg/m3 [10]. Amarnath Yerramala and Ramachandrudu C (2012) examined the performance of concrete using coconut shells (CS) as a coarse aggregate substitute. They created normal concrete with regular aggregates and Coconut shell concrete
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The possibility of utilizing recycled coconut shell aggregates in concrete as coarse aggregate is examined in the present study. An optimum percentage replacement of coarse aggregate with coconut shell aggregate is determined from the study. Coarse aggregate made from coconut shells were used in proportions of 5%, 10%, 15%, 20%, 25%, 30% and 35 ...
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The use of an agricultural by-product i.e. coconut shell can be a promising material for manufacturing the concrete in the partial replacement of coarse aggregates. Result indicates that coconut ...
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The possibility of utilizing recycled coconut shell aggregates in concrete as coarse aggregate is examined in the present study. An optimum percentage replacement of coarse aggregate with coconut shell aggregate is determined from the …
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The increasing demand for concrete in urban development raises significant environmental concerns associated with the extraction of natural aggregates. This study …
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The possibility of utilizing recycled coconut shell aggregates in concrete as coarse aggregate is examined in the present study. An optimum percentage replacement of coarse aggregate with coconut shell aggregate is determined from the study. Coarse aggregate made from coconut shells were used in proportions of 5%, 10%, 15%, 20%, 25%, 30% and 35 ...
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In this investigation, coconut shell concrete was produced by replacing coarse aggregate with coconut shells by 0%, 10%, 20%, and 30% of the total coarse aggregates.
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of concrete using coconut shell coarse aggregate was more than 17.2 N/ mm 2, which is a requirement for structural lightweight concrete (Mannan and Ganapathy 2004).
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