proportion was 1:1.5:3.Coconut shell replaced by 5%,10% replacement of coarse aggregate with coconut shells. 3.2.1 Test conducted on concrete Slump cone test was conducted on fresh concrete mix to checkout the workability of coconut shell concrete. Cube, cylinder and beam were prepared for test. concrete were poured in to the mould by

The average fresh concrete density and 28-day cube compressive strength of the concrete using coconut shell aggregate were …

Coconut shell aggregate, indicating shell strength had a strong influence on the resultant concrete strength. The flexural strength was found to be (4.44MPa) of normal concrete flexural strength and 80.6% (4.19 MPa) and 76%(4.02MPa) for …

For the Fineness Modulus of Powdered Coconut Shell: Percentage Retained100 = 252.21 = 2.522 For the Specific Gravity of Powdered Coconut Shell: Specific gravity = 1.05 g/mL1 g/mL= 1.05 For the Water Absorption of Powdered Coconut Shell: There are 3 powdered coconut shell samples weighed and placed inside an oven for 24hours at 1050 C.

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 kg/m3 and these are 184 within the range of structural lightweight concrete. Coconut shell aggregate

shell aggregate concrete and concluded that coconut shell concrete can be classified under structural lightweight concrete. The …

Coarse Aggregates:- The crushed stone aggregates of size 10mm and 20mm used in experimentation. Water :-Ordinary water free from organic content, turbidity and salts were used for mixing and for curing throughout the experiment. Coconut Shells:-Coconut shells used in the experiment was dried in the sunlight for 29-30 days. We collected coconut

the coconut shell is produced about 3.18 million tonnes [6]. In this study the coarse aggregate is replaced by coconut shell in M15, M20, and M25 grades of concrete of 16%, 18.5%, and 20% each and compressive strength have been found out. From the results it have been concluded that coconut shell can be used as structural concrete and it leads

30% of coconut shell as for coarse aggregate in concrete of grade M20 and also adding a steel fiber at a certain amount in the concrete. The results found were comparable with that of conventional mix. Yashida Nadir et al. (2017) An experimental investigation was carried out to study the durability properties of Coconut Shell (CS) aggregate ...

Table 1: Physical Properties of Coconut Shells Value (%) *The specific gravity of the coconut shell satisfies the value for a lightweight aggregate, which is less than 2 Physical Properties Coarse Aggrega te Fine Aggregate Recommended Value Moisture Content Dry (%) 0.14 12.93 Depend on the Drying Moisture Contentperiod of the aggregate

The replacement of coarse aggregate by coconut shell by 0%, 10%, 20% and 30%. The tests were carried out and the results obtained suggested that the replacement more than 20% leads to lightweight aggregate concrete. The slump found out to be increases as the percentage replacement increased. Similarly the density is reduced as the percentage ...

the coconut shell is produced about 3.18 million tonnes [6]. In this study the coarse aggregate is replaced by coconut shell in M15, M20, and M25 grades of concrete of 16%, 18.5%, and 20% each and compressive strength have been found out. From the results it have been concluded that coconut shell can be used as structural concrete and it leads

Properties of Concrete with Coconut Shells as Aggregate Replacement 22 2.2. Mix proportions In order to investigate properties of CS concretes, six mixes were employed. Control mix (M1) that is, without CS was made. Coarse aggregate was then replaced with CS in 10 (M2), 15 (M3), 20 (M4) percentages to study effect of CS

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.

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

The replacement of coarse aggregate by coconut shell by 0%, 10%, 20% and 30%. The tests were carried out and the results obtained suggested that the replacement more than 20% leads to lightweight aggregate concrete. The slump found out to be increases as the percentage replacement increased.

: 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 ...

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

The above data shows coconut shell can be used in place of normal aggregate however performance of coconut shell aggregate concrete is little lower than normal aggregate concrete. The main points of this study are 1. As the CS percentage increased density of concrete decreased. 2. The compressive strength of coconut shell concrete of 3,7and 28 ...

Coconut shell aggregate, indicating shell strength had a strong influence on the resultant concrete strength. The flexural strength was found to be (4.44MPa) of normal concrete flexural strength and 80.6% (4.19 MPa) and 76%(4.02MPa) for …

for coconut shell did not have much different but seem that [16] found better coconut shell on water absorption. While [17] found that water absorption for coconut shell is 24%. This value is not much different from the result in this study. Table-2. Aggregates properties results. Properties Coconut shell Natural aggregates Aggregate Impact Value

In the paper Properties of Concrete with Coconut Shells as Aggregate Replacement by Amarnath Yerramala Ramachandrudu C were researched on the Design review – M20. They replaces the coconut shell in the % 10, 15, 20 as takes after. d. In the paper Exploratory Study of Coconut Shell as Coarse Aggregate in Concrete by Abdulfatah Abubakar and

This has been appeared by testing coconut shell as aggregate incomplete substitution from a wide range writing survey. by coconut shell. 45 cubes were casted. Level of substitution of ordinary coarse aggregate by coconut shell were 2.5%, 5%, 7.5%, 10%. Compressive strength was 19.71, 19.53, 19.08, 18.91 N/mm2 separately at 28 days.

Abstract––Properties 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.

Kalkade S.A. and Dr. Dhawale A.W. (2015) have used coconut shell aggregates in concrete productions and hence concluded that coconut shell as aggregates have high water absorption because of high porosity in its shell structure. The aggregate impact value of coconut shell are much lower as compared to crushed stone

In this study, combination of coconut shell and E- waste aggregate concrete blocks were produced and tested for the parameters suggested in IS 2185 -1(2005). The conventional mix practiced in the field was adopted for the production of combination of coconut shell and E-waste aggregate concrete blocks.

20% coconut shell aggregate as suggested by the American Con-crete Institute (ACI). Ramesh et al. [22] prepared a different mix design in accordance with IS 456:2000 [23] and IS 10262: 2009

Testing of properties of cement, fine aggregate, 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

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 respectively. It is concluded that crushed ...