concrete. Coconut shell aggregate resulted in acceptable strength which is required for structural concrete. Coconut shell may present itself as a potential material in the field of construction industries. The coconut shell is compatible with cement and no need to pre-treatment for using it as coarse aggregate. Because of the smooth surface on ...
by coconut shells can be used in producing lightweight concrete. 18.5 replacement of crushed granite with coconut shells can be used to produce structural concrete per the requirements of 10. Coconut shells can be used as partial replacement of crushed granite or other conventional aggregates in reinforced concrete construction.
concrete when 5 coconut shell aggregateCSA was used to replace coarse aggregate in concrete. The cement content kgm3. The slight increase in the compressive and tensile strengths at 5 replacement could be compensated with an increase in the cement content. Property Value ...
1 Gunasekaran K and Kumar P.S. lightweight concrete mix design using coconut shell aggregate. Proceedings of the building materials, structural designs and construction practices, pp375-382. 2 O.T. Olateju,1992 The efficacy of lightweight aggregate from palm kernel shells, Journal of Housing Science15 4, pp. 263276.
Concrete made from coconut shell waste as coarse aggregate will be studied for compressive strength, tensile strength and flexural strength. the percentage replacement will be 0, 10, 20 and 30 with natural coarse aggregates and replacement of 10 various size of coconut shell in concrete. the replacement 10 of coconut shell and added coir ...
focus was made on the coarse aggregates and an attempt was made to replace th e conventional coarse aggregates using coconut shells in concrete. A control mix was designed for M 25 grade of co ncrete and then the crushed granite aggregates were replaced with coconut shells by volume in different levels such as 20, 40 , 60, 80 and 100.
Aug 03, 2020 coconut shell and coir fiber, as partial coarse aggregate replacement in making concrete hollow blocks. Keywords aggregate, ASTM, coconut shell, coir fiber, concrete hollow blocks INTRODUCTION Concrete hollow block CHB is one of the most widely used walling material in building and infrastructure.
2. Coconut shell as coarse aggregate The concrete obtained using Coconut Shell aggregates satisfies the minimum necessities of concrete. Coconut Shell concrete has superior workability because of the smooth surface on one side of the shells. The impact resistance of Coconut Shell concrete is high when compared with conventional concrete.
coconut shell concrete with the replacement of 16, 18.5 and 20 by coarse aggregate By testing the concrete cubes, at 28th day 16 replacement of coarse aggregate by coconut shell shows that the strength of the coconut shell concrete was decreased by
Coconut shell properties and properties of coconut shell concrete were thoroughly examined and the application as a construction material was evaluated. The linchpin of this study was on the mechanical and physical performance of concrete properties incorporated with coconut shell as a partial replacement for fine aggregate.
Coconut shell is used as light weight aggregate in concrete. Coconut shells are by-products of coconut oil production. Coconut shells are used in the production of activated carbon due to hardness and high carbon content. Various researchers have investigated the use of coconut shells and
aggregates. D. Coconut Shell Aggregate The coconut shells are obtained from an area coconut field. These are sun dried before being crushed manually. Coconuts show a large diversity in size, weight, form and color, looking on genetic selection and maturity of the nut at harvest. The particle sizes of the coconut shell vary from 5 to 20
Jul 31, 2019 Concrete houses have a higher social and economic status. This study provides another consideration for the selection of building materials Wonorahardjo, 2008. There are several ways that can be used to make concrete lighter, including using lightweight aggregates, substituting coarse aggregates with foam agents, adding coconut shells and additives where coconut shell waste has
Coconut shells can be used as coarse aggregate in concrete. It has functional resistance capability against abrasion, impact, and crushing. When used as coarse aggregate in concrete, no special treatment of coconut shell is required. Coconut husks are easily crushed into grains and transportation of this material is very economical.
coconut shells and fibers as an aggregate. Analyze the performance and the effectiveness of the coconut shells and fibers as aggregates in concrete hollow blocks in terms of physical properties like color, texture, size, and density and by mechanical properties like compressive strength, modulus
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 coarse aggregate replacement on the behavior of concrete with respect to some vital properties. The coconut shell concrete was designed for
coarse aggregate and coconut shells. Production of concrete mixes Production of mix normal concrete of grade M-20 in the laboratory is carried out by IS method of concrete mix design IS 10262-1982. Coconut shell concrete is produced by adding coconut shells in different percentage i.e. 25 and 50 replacement in concrete. Test on
The coconut shell concrete was designed for characteristic strength of 30MPa with the incorporation of coconut shell as replacement for fine and coarse aggregate at
Fig. 1 Concrete beam casted using coconut shell as coarse aggregates III. TEST RESULTS A. Failure mode In the control concrete beam initial crack is 35 kN. The coconut shell 25 beam initial crack is 25 kN. The coconut shell 50 beam initial crack is 30 kN. The coconut shell
behaviors of reinforced beam with coconut shell are closely equivalent with using natural aggregates. 9 have studied the properties of concrete that using coconut shell as coarse aggregate and the result is the compressive strength is decrease as the percentage of coconut shell increase. Coconut shells also have been used since long ago to ...
Coconut shell CS is used as aggregate in concrete. Now-a-days there is large use of aggregate is increasing day by day so rather than using coarse aggregate in concrete, natural material coconut shell shall be used for some construction. Coconut shell is a waste material from coconut and it is quite strong like aggregate.
2.70. This indicates that coconut shell is lighter than coarse aggregate and more volume of coconut shell will be required to replace equal weight of coarse aggregate in concrete. The bulk density of coconut shell obtained is 648 which far less thanis about 1437 of coarse aggregate implying its good for lightweight concrete.
ascertain the suitability of coconut shell as coarse aggregate in concrete and ensuring that standard method of assessment are dully followed. The experiments carried out on all the materials used for the research work according to BS 4550 and BS 812 is as follows 1. Cement a. Standard consistency test
AbstractProperties of concrete with coconut shells CS as aggregate replacement were studied. Control concrete with normal aggregate and CS concrete with 10 - 20 coarse aggregate replacement with CS were made. Two mixes with CS and fly ash were also made to investigate fly ash effect on CS replaced concretes.
II. COCONUT SHELL AS AGGREGATE Coconut shell particles are used as reinforcing material for investigation. Shell particles of size between 20 mm 600 are prepared in grinding machine. Coconut shell aggregates are potential candidates for the development of new composites because of their high strength and modulus properties.
Key words coconut shell, concrete, coarse aggregate, compressive strength, waste disposal. nations pollution problem as a solid waste in the 1. INTRODUCTION Concrete is a composite material which composed of aggregates, cement and water. Concrete is
Oct 05, 2020 This research work reports the investigation carried out to determine the use of coconut shell as an aggregate in light weight concrete. Concrete samples were produced with different mix ratios, to determine the best and economic proportions that will give acceptable compressive strengths. Coconut shell aggregate exhibits low impact, crushing ...
Jun 01, 2017 Properties of coconut shell which may make it suitable coarse aggregate for concrete are i its high strength and modulus properties ii its high lignin content that makes the composites more weather resistant iii its low cellulose content due to which it absorbs less moisture as compared to other agricultural waste iv its shells are non-biodegradable v they can be used readily in concrete which may fulfill almost all the qualities of the original form of concrete
Hence, there is the need to study the feasibility of Dandagala et al2014 have made laboratory investigation on green coconut shells and matured coconut fibre as the aggregates coconut shell in concrete, an alternative low cost building material for concrete preparation in the future research programme. and reached at following findings that coconut shell can be used as REFERENCES full
concrete when 10 of coconut shell aggregateCSA by volume was used to replace coarse aggregate in concrete. The cement content was increased to 386.5 kgm 3 .
of using coconut shell ascoarse aggregate replacement in concrete include high strength, reduction of dead load, modulus properties and lignin content. The high lignin content makes coconut shell aggregate concreteto be weather resistant and hence suitable for application construction materials. as
While natural material is coconut shell as course aggregate will be investigate to replace the aggregate in concrete. In this study, three different concrete mixes namely M20, M35 amp M50 grade with different
studies identified that coconut shells, the agricultural by product can also be used as aggregate in concrete 11,12. According to a report, coconut is grown in more than 86 countries worldwide, with a total production of 54 billion nuts per
which is required for structural concrete. Coconut shell may present itself as a potential material in the field of construction industries. The coconut shell is compatible with cement and no need to pre-treatment for using it as coarse aggregate. Because of the smooth surface on one side of the shells concrete made with coconut shell presents better workability. Coconut shell concrete shows good
aggregate. Coconut shell can be grouped under lightweight aggregate. There is no need to treat the coconut shell before use as an aggregate except for water absorption. Coconut shell is compatible with the cement. The 28-day air-dry densities of coconut shell aggregate concrete are less than 2000 kgm3 and these are 184 within the range of structural lightweight concrete. Coconut shell aggregate