(PDF) Lightweight Concrete Using Coconut Shells as …
The average fresh concrete density and 28-day cube compressive strength of the concrete using coconut shell aggregate were 1975 kg/m 3 and 19.1 N/mm 2 …
The average fresh concrete density and 28-day cube compressive strength of the concrete using coconut shell aggregate were 1975 kg/m 3 and 19.1 N/mm 2 …
Coconut shell concrete shows good impact resistance. As compared to conventional aggregate water absorbing and moisture retaining capacity of coconut shell is more. The presence of sugar in the coconut shell, does not affect the setting and strength of concrete because it …
ABSTRACT. 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 ...
coconut shell concrete with the replacement of 16%, 18.5% and 20% by coarse aggregate By testing the concrete cubes, at 28 th day 16% replacement of coarse aggregate by coconut shell shows that the strength of the coconut shell concrete was decreased by 2.15% from control mix.
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
SHELL CONCRETE 01.Study of Coconut Shell at microscopic level by Scanning Electron Microscope(S.E.M),and X-Ray Diffraction(X.R.D) 02.Evaluating Bond strength of concrete: Pull Out Test Push Out Test Prism Pull Out Test 03.Effects on divergent Admixtures on Coconut Shell Concrete 04.Coconut Shell-Cement Compatiblity by Marsh Cone Test. 05.Drying ...
184 within the range of structural lightweight concrete. Coconut shell aggregate concrete satisfies the requirements of ASTM C 330. Reference [1] Adeyemi AY.,(1998)," An investigation into the suitability of coconut shells as aggregates in concrete production",Journal of …
Coconut shell concrete has better 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. Moisture retaining and water absorbing capacity of coconut shell are …
the compressive, tensile and flexural behavior of concrete modified with coconut shell aggregate. In order to test the above properties and compare with that of concrete without any coconut shell aggregate, a control concrete mix was designed as per IS 10262 2009 [8] for concrete of grade of M20.
Coconut shell is a major agricultural waste that is readily available and can be easily assessed in many countries that are tropical. Coconut shell properties and properties of coconut shell concrete were thoroughly examined and the application as a construction material was evaluated.
technology world. Agricultural waste material such as coconut shells were collected and pulverized in the furnace from C to C for four hours to produce coconut shell ash (CSA), after XRF analysis was carried out to determine its pozzolanic property, which was used as partial replacement of cement in concrete production.
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.
The coconut shell cement composite is compatible and no pre-treatment is required. coconut shell concrete has better 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. Moisture retaining and water absorbing capacity of coconut ...
Coconut shell concrete shows good impact resistance. As compared to conventional aggregate water absorbing and moisture retaining capacity of coconut shell is high. The presence of sugar in the coconut shell, does not affect the setting and strength of concrete because it is not in a free form. It is found that wood based materials
Abstract The properties of concrete using coconut shell as coarse aggregate were investigated in an experimental study. Compressive, flexural, splitting tensile strengths, impact resistance and bond strength were measured and compared with the theoretical values as recommended by the standards. For the selected mix, two different water–cement ratios have been considered to study the effect ...
Coconut Shell concrete has better 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. Moisture retaining and water absorbing capacity of Coconut Shell are …
(2021). Study on coconut shell concrete hollow blocks and the shrinkage, durability and bond properties of mixes used. European Journal of Environmental and Civil Engineering: Vol. 25, No. 1, pp. 73-89.
Coconut shell powder in varying percentages of1%, 3% and 5% was used as filler material in concrete grade 30 and evaluated after a curing period of 7 days and 28days respectively. Compressive strength, water absorption and carbonation tests were conducted to evaluate the strength and durability of CSP concrete in comparison with normal concrete.
M20 mix design was carried out for control mix (i.e. without coconut shell) according to Indian standards .Detailed procedure of mix design is provided in Annexure A.The concrete mix was designed for slump of 60 mm.Using same mix design, coconut shell concrete was prepared by replacement of conventional crushed coarse aggregate (CA) with waste coconut shell (CS).
Answer: Reduced graphene oxide (r-GO)powder has been prepared from coconut shells by carbonization process at 400°C for 3, 4 and 5 hours. The resulted sample mass was reduced to be 60% relatively compared to the starting material. The longer heating duration has also led to …
To check various properties of coconut shell concrete mix like - Density - Modulus of Elasticity - Workability - Water-cement ratio - Water absorption - Slump cone c. To investigate the feasibility of the combination of coconut shell as coarse aggregate in concrete …
Hence, there is the need to study the feasibility of Dandagala et al;(2014) 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 concrete can be classified under structural lightweight concrete. In this paper reports the exploratory study on the suitability of the periwinkle shells as partial or in concrete works. Physical and mechanical properties of periwinkle shell and crushed granite were determined and compared. • In this paper presents the ...
Coconut shell concrete can be classified under structural lightweight concrete.O.T. Olatejuin this paper reports the exploratory study on the suitability of the periwinkle shells as partial or in concrete works. Physical and mechanical properties of periwinkle shell and …
To plan lightweight concrete by utilizing coconut shell as course aggregate. SCOPE OF THE WORK: The point of this study is to study the utility and profitability of coconut shells as a coarse aggregate as a contrasting option to characteristic aggregate in cement. 1. …
The growing problem in waste prompted the researchers to use coconut shell as additives in concrete mixture, and to determine whether it significantly increases the flexural and compressive strength of concrete. This study used experimental design to determine the effectiveness of adding crushed coconut shell as additives in concrete mixture.
freshly discarded Coconut shells were collected from a local oil mill. The coconut shells were crushed using concrete hammers to a size such that it passes through a 20mm sieve and retained on 4.75mm sieve. Crushed shells were washed to remove fibers, mud, etc from them. The washed shells were dried in sunlight for 2 days.
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% to replace coarse aggregate in conventional concrete. A constant water to cement ratio of 0.5 was used throughout the study.
Coconut Shell, Concrete, 1. Introduction . 1.1 Concrete: - A composite material that consists essentially of a binding medium, such as a mixture of Portland cement and water, within which are embedded particles or fragments of aggregate, usually a combination of fine and coarse aggregate. Concrete is by far the most
The study focuses on density, compressive strength, tensile strength and flexural behaviour of the coconut shell eco-concrete. Two different mixes are developed, one with coconut shell and the other with conventional aggregate and coconut shell as coarse aggregate. The cement content is replaced with class F fly ash at 0%, 10%, 20% and 30% by ...