Coconut Shell as a Substitute for Coarse Aggregate in Concrete sustainable alternative for nonrenewable natural stone aggregates. The properties of concrete using .

Coconut Shell As Aggregate Coconut shell particles are used as reinforcing material for investigation. Shell particles of size between 20 mm – 600 μ 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.

The properties of concrete with coconut shells (CS) as an aggregate replacement were studied. Control concretes were made with normal aggregate and CS concrete with a 1020% coarse aggregate replacement with CS.

Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10% by weight. Steel fibers of,,, and % by volume of concrete were used.

The coarse aggregate for this study was a mixture of gravel and seashell at percentages of 0%, 3%, 5%, 7%, 9% and 11%. Remoulding of the cubes was done between 18 to 24 hours after casting. The hardened concrete was transferred immediately into the curing tank. Curing was .

coconut shell aggregates were washed and were in saturated surface dry condition. The pieces were made to 20 mm and down size. Average value of specific gravity was plasticizer was used to improve workability. Fly Ash Based Geo Polymer Concrete Using Coconut Shell Aggregate

Coconut shell concrete is one of the recently established concrete the coconut shell as coarse aggregate and the river sand as fine aggregate was used in that. Since the sources of river sand are depleting day by day everywhere and hence people are searching for an alternate material for the same. In

Based on these results, there is potential for coconut shell to be used as coarse aggregate in lightweight concrete. Sisal fiber was unsuccessful in producing the appropriate compressive strength. However, the reduction in spalling of the hardened concrete and the induction of air in the mixes incorporating sisal fiber suggests that it has the potential to improve other characteristics of lightweight concrete.

Columns with coconut shell aggregate were cast with mix proportion of cement: sand: coarse aggregate in the ratio of 1:: with w/c ratio of Coconut shell aggregate was initially soaked in water for 24hrs prior to casting and dried in sunlight. Bamboo was cut into 4 parts diameter wise and was made to

The materials used for concrete for this study were portland cement, sand, granite and coconut shells. Portland cement of class, manufactured by Ghana Cement Works at Takoradi in the Western Region of Ghana and conforming to [15] was used. Crushed granite of nominal size 20mm was used as coarse aggregate.

coconut shell it split into the small pieces by using the hand hammer. After that the shells will be sieved from 12mm sieve to avoid the flakiness property of the coconut shell. Then it will be replaced as coarse aggregate with 0%, 5%, 10%, and 15% respectively. (1) Collection of coconut shell (2) Crushing into pieces (3) sieving from 12mm sieve

The use of coconut shell as coarse aggregate in concrete has never been a usual practice among the average citizens, particularly in areas where light weight concrete is required for nonload bearing walls, nonstructural floors, and strip footings. It is evident that the .

Partial Replacement of Coconut Shell as Coarse aggregate ... coconut shell concrete with the replacement of 16%, % and 20% by coarse aggregate By testing the concrete cubes, at th28 day 16% replacement of coarse aggregate by coconut shell shows that the strength of the coconut shell concrete was decreased by % from control mix.

coconut shell as coarse aggregate. The concrete grade of M25 mix, designed as per Indian standards (IS 10262:2009) is used in this study to determine the compression strength of cube and split tensile strength of cylinder after 7 days, 14 days and 28 days. The Indian standard specifies

coconut shell aggregate was high about 24% but the crushing value and impact value was comparable to that of other lightweight aggregates. They found that the average fresh concrete density and 28day cube compressive strength of the concrete using coconut shell aggregate were 1975 kg/m3 and .

A. Advantage of Using Coconut Shell in Concrete: Coconut shell exhibits more resistance against crushing and impact compared to coarse aggregate. Coconut shell is compatible with cement. The presence of sugar content in the coconut shell, does not affect the setting and strength of concrete and no pretreatment is required.

From the research findings, Coconut Shell has used as replacement of Coarse Aggregate in concrete and categorized as light weight Aggregate. It is found that the strength of the coconut shell concrete almost achieved the strength of conventional concrete. Thus it can .

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.

use of Coconut Shell as coarse aggregate. In this study, coconut shell was used as light weight aggregate in concrete. Moisture content and water absorption after the experiment were % and 24% respectively and these values were more when compared to conventional aggregate. Coconut shell exhibits more resistance against crushing, impact and ...

coconut shell as coarse aggregate in concrete content and length to the workability as lightweight aggregate in concrete and also the mechanical properties mentioned above. d. To determine the optimum content of the combination of coconut shell as coarse aggregate in concrete to improve the ductility and does not