shell and coir fibre are known as new waste materials that used in high is because coconut shell has good weather resistant that it is suitable to use as construction,it has no economic value and its dispose process is costly and will cause environmentl problem. Tests are conducted to study the mechanical properties of the concrete with various ...
The properties of concrete using coconut shell as coarse aggregate were investigated in an experimental study and the study concluded coconut shell concrete can be classified under structural lightweight concrete [3]. Coconut shell contains ash, lignin, pentosans and cellulose in varying percentage when dried [4]. 2. SCOPE AND OBJECTIVES OF THE STUDY The main scope of the .
Compared the normal concrete with coconut shell. Coconut shell can be used as full substitution of smashed grainite or ordinary aggregate in cement development. It was watched that coconut shell concrete indiing 65% of compressive quality to that of ordinary concrete. There is not required to test the CS previous to use an aggregate except for water assimilation. Coconut shell exhibit more ...
Since the concrete strength of coconut shell with mix ratio 1:11/2:3, attained /mm2 at 28 days it can be used in plain concrete. Hence cost reduction of 48% will be achieved. INTRODUCTION The overall relevance of concrete in virtually all civil engineering practice and building construction works cannot be over emphasized. Concrete is an artificial material similar in appearance and ...
Answer: The main purposes of using coarse aggregate in concrete is for its durability and strength. Stronger the coarse aggregate greater will be the crushing strength of concrete. Generally used coarse aggregate in making concrete is "Crushed Stone". Crushing Strength: If you compare coconut sh...
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. Similarly for % and 20% replacement the strength get decreased by % and % respectively. .
Coconut shell concrete is produced by adding coconut shells in different percentage ( 25% and 50%) replacement in concrete. Test on ingredients materials: The ingredients of concrete cement, fine aggregate, coarse aggregate, coconut shells are tested before producing concrete. The respective Indian standard codes are followed for conducting various tests on ingredients materials and ...
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 being hard and of organic origin, will not contaminate or ...
Predictive Model of the Compressive Strength of Concrete Containing Coconut Shell Ash as Partial Replacement of Cement Using Multiple Regression Analysis U. K. Unamba1*, E. S. Nwajagu2, J. Abutu3 and O. J. AgboAnike4 1,2Department of Civil Engineering, Taraba State University Jalingo, Taraba State, Nigeria 3Department of Mechanical Engineering, Taraba State University Jalingo, Taraba State ...
Concrete made from coconut shell waste as coarse aggregate will be studied for compressive strength, tensile strength and flexural strength. the percentage replacement will be 0%, 10%, 20% and 30% with natural coarse aggregates and replacement of 10% various size of coconut shell in concrete. the replacement 10% of coconut shell and added coir fibre on high temperature. I will prepare cubes ...
Keywords: Powdered Coconut shell, fine aggregates, concrete. 1. INTRODUCTION One of the most critical problems in environmental protection and natural resource conservation is waste management. Different changes in the environment and an increase in population are one of the main causes of the many processes of deterioration which have altered the ecosystem of our own planet, together with .
· The coconut shell concrete was designed for the characteristic strength of 30 MPa with the incorporation of coconut shell as a replacement for fine and coarse aggregate at 10%, 20% and 30% by weight respectively. The compressive, flexural, tensile strengths, as well as densities and water absorption of 96 cured concrete samples, were evaluated at 7, 14, and 28 days. The results showed .
They found that the average fresh concrete density and 28day cube compressive strength of the concrete using coconut shell aggregate were 1975 kg m1 and N mm1, respectively. It is concluded that crushed coconut shells are suitable when it is used as substitute for conventional aggregates in lightweight concrete production. Previous study by Olanipekun et al. (2006) has shown .
· Concrete hollow blocks using coconut shell aggregate had reduced workability and a much rougher texture, but they also had higher compressive strength compared to the control concrete bricks. Coconut shell cement does not require pretreatment. Thanks to their slight malleability, coconut shells are more resistant to crushing and other impacts. Maybe even more so than standard .
addition of coconut fibre to concrete leads to improvement of concrete the toughness torsion and the tensile stress, Further work is however,required to assess the long term durability of concrete enhanced with coconut fibres.. Keywords : coconut fibres; compression and tensile strengths; torsion; toughness INTRODUCTION . With the quest for affordable housing system for both the rural and ...
2. Coconut shell not useful for high rise building. Conclusion From this experiment, the combination of coconut shell gives good strength by using quantities of 10% to 30% CS. Also, using the combination of coconut shell as aggregate in concrete can reduce the cost of material. For economical purpose, the coconut shell is suitable for course ...
can bind coconut shells with concrete because the adhesion properties of polyvinyl 237 351 236 288 267 200 220 240 260 280 300 320 340 360 Normal Coconut Shell 8 % Coconut Shell 10% m 2 PVAc 8% PVAc 10%. Volume 2 Number 2 March 2019 104 acetate, but at the time of setting time, the influence of polyvinyl acetate which makes the concrete hardens longer than normal concrete. 2. In this study ...
Adeala et al. (2020) investigated the potential use of coconut shell ash as a partial replacement of in concrete production. The study showed that 10% replacement of has the lowest water absorption of %.XRF analysis showed that the belongs to class F. The affects the workability of fresh concrete; an increase in content in the concrete mix led to a ...
· Coconut Shell Concrete Powder. Coconut shells are known for their durable properties. They're so durable that they're used as aggregates in some parts of Asia. There are even studies that have delved into the potential of coconut shells as concrete powder, which is made by crushing coconut shells into fine powder. One study has shown that coconut shell powder (CSP) combined .
Keywords Coconut Fibre in Concrete, Flexural Strength of Concrete. I. INTRODUCTION Concrete is the most widely used construction material all over the world. With innovations in science and technology in construction industry, the scope of concrete as a structural material, has widened. Since concrete is weak in tension and flexure, most commonly, it is reinforced using steel reinforcing bars ...
coconut shell in concrete, an alternative low cost building material and reached at following findings that coconut shell can be used as full replacement with crushed granite in concrete construction. There is no need to treat coconut shells before use as an aggregate except for water absorption. The possibility exists for the partial replacement of coarse aggregates with coconut shell to ...
· Compressive strength of coconut shell concrete has been evaluated on 7, 14, 21 and 28 days. The compressive strength of coconut shell concrete was reduced as percentage replacement increased. Concrete mixtures were tested and compared in terms of compressive strength of the conventional concrete. The study result shows that Coconut Shell Concrete (CSC) can be used as .
· Coconut fibre is abundantly available material which makes it a viable reinforcement material in concrete and the same goes for coconut shell which can be used as a partial replacement for conventional aggregate. This can further act as a new source of income for the coconut producers who get the benefit of the new demand generated by the construction industry. It is also an effective .