using Coconut Shell aggregates satisfies the minimum requirements of concrete. Concrete using Coconut Shell aggregates resulted in acceptable strength required for structural concrete. Coconut Shell may offer itself as a coarse aggregate as well as a potential construction material in the field of
strength, flexural property and hydrophilic behaviour of the resulting composite. The results showed that maximum tensile strength was obtained for composite with 20 % of coconut shell powder. Bhaskar, et al. [13] evaluated the physical property and mechanical properties of coconut shell powder (size between 200-800μm and varying wt% of 20,
Based on the compression and splitting tensile strength of concrete, it can be established that the concrete containing 10% and 25% crushed coconut shell aggregates with the replacement of stone chips as coarse aggregates fulfills the requirements of the lightweight structural grade concrete.
strength of the coconut shell concrete was decreased by 4.02% from control mix. Similarly for 18.5% and 20% replacement the strength get decreased by 7.48 % and 12.46 % respectively. Fig.3 represents the variation in strength of coconut shell concrete with16%, 18.5% and 20% replacement which are compared with control mix in M 20 grade concrete.
In this investigation, coconut shell was used for the production of high strength lightweight concrete. The dry density and cube compressive strengths were measured. Coconut shell aggregate concrete of compressive strength 35.09 N/mm 2 and dry density 1913 kg/m 3 was produced. These are in the range of high strength lightweight aggregate concrete.
The coconut shell particles and coir fibers are good reinforcing of 30 wt% materials to reduce the consumption of resin as well as utilizing waste natural material with maintaining the properties ...
Key words: Coconut shells, Compressive strength,Density, Flexural strengthand Regression. 1. INTRODUCTION . Concrete is a building material obtained from the mixture of sand, gravel, cement and water. The continuous increase in the price of construction
Coconut shells consist of three distinct layers: the leathery exocarp on the outside, the fibrous mesocarp in the middle, and the hard endocarp on the inside, which protects the developing ...
compressive strength of concrete with or without fly ash. Moreover, Chopra et al. [18] predicted the compressive strength of concrete for varying workability using regression model. However, prediction of compressive strength of concrete containing coconut shell ash (CSA) as partial
In this investigation, coconut shell was used for the production of high strength lightweight concrete. The dry density and cube compressive strengths were measured. Coconut shell aggregate ...
Strength of the coconut shells concretes increased 24-42 percent at 3 days and 38-84 percent after 7 days of curing than its corresponding 28 day strengths respectively. This observation suggests that as coconut shells percentage increased the 7 day strength gain also increased with corresponding 28 day curing strength. The coconut shells ...
It is so, because after the consumption of coconut shell, the strength of 7 days curing increased with the sweet water, the green coconut shells are simply thrown and corresponding 28 days curing strength. Coconut shell is most dumped here and there causing favourable conditions for suitable and compatible with the cement.
The waste coconut shell may be utilized to replace natural coarse aggregate. In present study, compressive strength of concrete of M - 20 grades has studied by replacing natural coarse aggregates at 0%, 5%, 10%, 20% and 30%, by weight with coconut shell. Compressive strength of coconut shell concrete has been evaluated on 7, 14, 21 and 28 days.
Coconut fiber was used in coconut shell concrete (CSC) and its durability properties were studied. The properties include: water absorption, volume of permeable pore voids, rapid chloride penetration test, sorptivity and resistance at elevated temperature. For comparison purpose, these properties were also studied on conventional concrete (CC) with coconut fibers.
increasing coconut waste proportions increased the water absorption rate while decreasing the compressive strength and workability. In addition, total cost of production was reduced when coconut shells and coir fiber were used compared to the expenses required in the conventional concrete. The findings prove to be
The coconut shell is situated between the coconut flesh and the coconut husk. This shell is usually designed to cover the inner portion of the coconut. Shell is used for the development of various handicrafts and other applications. Many handmade decoration items are produced by using coconut shells because of their strength.
Full Article. Characterization and Impact of Curing Duration on the Compressive Strength of Coconut Shell Coarse Aggregate in Concrete. Mei Yun Chin, a Md. Rezaur Rahman, b, * Kuok King Kuok, a Wai Yun Chiew, a and Muhammad Khusairy Bin Bakri b Partial replacement with coconut shell coarse aggregates was studied as a means to produce lightweight coconut shell concrete (CSC).
The incorporation of coconut shell ash into concrete mixtures also resulted in an increase in the mechanical properties up to 10% replacement of Portland cement. The compressive, tensile, and flexural strength of mixtures incorporating 10% coconut shell ash as replacement of Portland cement is 12%, 10%, and 9% higher than that of the control ...
Based on the limited number of experimental investigation carried out to determine the mechanical properties of concrete namely, compressive strength, split tensile strength and flexural strength of concrete, an optimum replacement of coarse aggregate with coconut shell aggregate, corresponding to the mix ratio 1: 1.63: 3.13, was determined as 15%.
replacement of coir fiber and coconut shells with Sl no Grade Percentage replacement of coir fiber & coconut shells Compressive strength in N/mm2 Age in days 3 …
Compressive Strength of Concrete by Using Coconut Shell International organization of Scientific Research 3 | P a g e 4..1 oWWorrkk ppllaan –– Sr. No. Concrete Cube 7 Days 28 Days 1 M 20 Mix 3 2 20% replacement Aggregate by Coconut Shell 3 3 30% replacement Aggregate by Coconut Shell 4 40% replacement Aggregate by Coconut Shell 3 5 M 35 Mix 3
conut shell increases in the two mix ratios, Coconut shell exh. bited a higher compressive strength than palm kernel shell in . the test. Moreover, there is a cost redu. concrete produced from coconut shell and palm ke. respectively [10,11]. Fig.1 Coconut Shell Fig.2 Waste Coconut Shell . 3 P ROPERTIES OF C OCONUT S HELL a)
High yield strength deformed bars of 12 mm and 16 mm diameter were used as reinforcement. M25 grade concrete and different replacement of coarse aggregate with the coconut shells were considered. The test results indicated that as percentage of replacement of coarse aggregates with coconut shells increases the concrete bond strength decreases.
The value of shear strength of clay soil increased with the addition of the percentage of coconut shell charcoal powder from 26.844 kN/m 2 for clay soil to 59.845 kN/m 2 for clay soil with 15% coconut shell charcoal powder so that the coconut shell charcoal powder can be used as soil stabilization material.
By the replacement of coconut shells we can get the light weight concrete. As the replacement of coconut shells increases the strength of the concrete will be reduce. The strength properties of concrete were found by the replacement of coconut shells by 0%, 5%, 10%, and 15% at the age of 3days, 7days and 28days.
As a result coconut shells are abundantly available and it has been successfully utilised in many fields. This research is devoted to assessing its suitability as a stabilising agent in the field of ground improvement techniques. It mainly presents an experimental study on the effect of coconut shell powder on the strength of soil.
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 fiber, obtained from unripe coconut, is a natural fiber extracted from the husk of coconut. The coconut is steeped in hot seawater, and subsequently, the fibers are removed from the shell by combing and crushing, the same process as jute fiber. The individual fiber cells are narrow and hollow with thick walls made of cellulose, and each ...
The compressive strength of coconut shell concrete with addition of steel fibres for various volume fractions of 0.5%, 1.0%, 1.5%, 2.0% for 7 days and 28 days curing are listed below: Table-6. Compressive strength of coconut shell concrete with various volume fraction of …
ultimate tensile strength of 70MPa was obtained for the coconut shell particulate polyester composite, while that of palm fru it particulate polyester composite was 62.5MPa. The highest impact strength value for coconut shell particulate polyester composite was 4.76J, while that of palm fruit particulate polyester composite was 4.60J.