Normal aggregate, that is, crushed blue granite of maximum size 20 mm was used as coarse aggregate. Well graded river sand passing through 4.75 mm was used as fine aggregate. The specific gravities of coarse and fine aggregates were 2.65 and 2.63 respectively. Coconut shells which were already broken into two pieces were
using coconut shell & palm kernel shell as coarse aggregates, Building and Environment 41:297-301,2006. [2] Gopal Charan Behera, Ranjan Kumar Behera, Coconut Shell as Coarse Aggregate, International Journal of Engineering Research & Technology (IJERT), vol.2, Issue 6, June – 2013.
This paper presents the results of an investigation carried out on the comparative cost analysis and strength characteristics of concrete produced using crushed, granular coconut and palm kernel shells as substitutes for conventional coarse aggregate in gradation of 0%, 25%, 50%, 75% and . Two mix ratios (1:1:2 and 1:2:4) were used.
source of structural aggregate material. It is becoming more difficult to find natural resources. Therefore the coconut shell as partial replacement for coarse aggregate in concrete is studied. The density, slump and compressive strength of concrete are tested. The replacement of coarse aggregate by coconut shell by 0%, 10%, 20% and 30%.
Feb 21, 2017· Coconut shells are more suitable as low strength-giving lightweight aggregate when used to replace common coarse aggregate in concrete production. In the following paper the normal weight aggregate has been replaced by coconut shell aggregate and cubes have been casted to test their compressive strength and other physical properties ...
Key Words: coarse aggregate, coconut shell, Ceramic waste, 1.INTRODUCTION ... Inert granular materials such as sand, ... sugar content in the coconut shell, as long as it is not in a free sugar form, does not affect the setting and strength of concrete.
They coarse aggregates, Building and replaces the Coconut shell in the % 20, 30, 40, Environment 41:297-301,2006. 50 & 100 respectively and the results are [2] Gopal Charan Behera, Ranjan Kumar Behera, Coconut Shell as Coarse Aggregate, International Journal of Engineering Research & Technology (IJERT), vol.2, Issue 6, June – 2013. ...
Kambli Parag S. and Mathapati Sandhya R. (2014) [5] studied the use of coconut shell in concrete and concluded that coconut shell has a potential to be used as light weight aggregate. It could be ...
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
Preparing of specimens of partially replaced coarse aggregates with coconut shells aggregates with or without plasticizer. Without plasticizer M-25 grade of concrete was prepared according to mix ratio of 1:1:2. The coarse aggregates were replaced as 10 %, 15 %, 20% by coconut shells of desired size with water-cement ratio of 0.48. Moulds are
This makes it a material of choice in construction. 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.
compressive strength and Split tensile strength were evaluated at 7, 28 and 56 days by replacing coarse aggregate by coconut shell at 10%, 20%, and 30%. The compressive strength of concrete reduced as the percentage replacement increased. It can be replaced up to 20%. With the increase in the replacement of coconut shell the slump value increases,
0%, 18%, 20%, 22%, 24% with coconut shell and 0%, 5%, 8%, 10%, 12% with rice husk ash. The characteristic properties of concrete such as compressive strength, split tensile strength using the mix made by partial replacement of coarse aggregate with crushed coconut shell aggregate
using crushed granular coconut shells as substitutes for conventional coarse aggregate. The tested parameters include physical properties and mechanical properties of coconut shell concrete. The test results illustrated that coconut shell can be used as a replacement of coarse aggregate for the production of lightweight structural concrete.
Coarse Aggregate Coconut Shell Ash 2.1 Cement Cement is used right from ancient periods in construction ... amounts of free CaO or MgO are present in the cement, ... Sand is naturally occurring granular material composed of finely divided rock and mineral particles. The most common
of concrete produced using crushed, granular coconut shells as substitutes for conventional coarse aggregate in gradation of 0%, 5%, 10%, 15% and 20% for M30 grade of concrete.
crushed, granular coconut and palm kernel shells as substitutes for conventional coarse aggregate in gradation of 0%, 25%, 50%, 75% and . The results of the tests showed that the compressive strength of the concrete decreased as the percentage of the shells increased in the two mix ratios. However, concrete obtained from coconut shells ...
where natural occurring aggregates are expensive.In this paper,ineering properties of concrete made with varying percentage of palm kernel shells as aggre - gate is determined.This research will aim to evaluate the performance characteristics of palm kernel shell at different percentage replacements for coarse aggregate
Oct 01, 2011· The Behavior of Reinforced Concrete Beams with Coconut Shell as Coarse Aggregates CIVIL Project aims at analyzing flexural and compressive strength characteristics of concrete produced using crushed, granular coconut as substitutes for conventional coarse aggregate with partial replacement using M30 grade concrete. Beams are casted, tested and their physical and mechanical …
This paper presents the results of an investigation carried out on the comparative cost analysis and strength characteristics of concrete produced using crushed, granular coconut and palm kernel shells as substitutes for conventional coarse aggregate in gradation of 0%, 25%, 50%, 75% and . Two mix ratios (1:1:2 and 1:2:4) were used.
Join for free. Public Full-text 1 ... granular coconut and palm kernel shells as substitutes for conventional coarse aggregate in gradation of 0%, 25%, 50%, 75% and . ... coconut shell as ...
19.54-27% in case of usage of 5%-25% of coconut shell and all values up to 25% coconut shell in coarse aggregate are less than 30%, therefore it is used for cement concrete pavement.
Coarse Aggregate: Coarse aggregate: Aggregates predominately retained on a No. 4 (4.75-mm) sieve are classified as coarse aggregate. Generally, the size of coarse aggregate ranges from 5 to 150 mm. For normal concrete used for structural members such as beams and columns, the maximum size of coarse aggregate is about 25 mm.
Download Free PDF. Download Free PDF ... BEAMS WITH COCONUT weight aggregates such as gravel and granite drastically SHELL AS COARSE AGGREGATES reduces the natural stone deposits and this has damaged the environment thereby causing ecological imbalance (Short and Kinniburgh, 1978).Therefore, there is a need to explore and to find out suitable ...
crushed granular coconut and palm kernel as substitute for conventional coarse aggregate. The coarse aggregate was replaced in ratios of 0%, 25%, 50%,75% and in two different concrete mixes. Their results showed that the compressive strength of the concrete decreased
High cost of constructional materials coupled with the clamour to reduce environmental stresses due to excessive usage of natural aggregates has demanded research into the use of alternative materials for construction. Coconut shell is one of the most prevalent agricultural solid wastes in several tropical countries. For coconut shell aggregate to be used efficiently for construction purposes ...
-cost housing. Crushed granular coconut and palm e-echanical properties o-i-ction of 30% and 42% for rnel shell . 4.2 Siti Aminah Bt Tukiman and Sabarudin Bin Mohd (2009) replaced the coarse aggregate by coconut shell and grained palm kernel in their study. Percentage of. replacement by coconut shell were 0%, 25%, 50%, 75% and respective-ly.
dust of 30 % along with the partial replacement of coarse aggregate with coconut shell. The coarse aggregate is replaced with 10 %, 20%, 30% and 40 % by coconut shell. The design Mix used for the project is M20 grade (1:1.5:3) with W/C Ratio 0.5.The Conventional concrete and Coconut shell with quarry dust concrete