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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 replacement.
in the Coconut shell as long as it is not in a free form; it will not affect the setting and strength of concrete. It is found that ... Utilization of Coconut Shell as Coarse Aggregates in Mass Concrete" International Journal of Applied Engineering Research, ISSN 0973-4562 Vol. 7 1 (2012). ...
Feb 26, 2016· Reinforced Concrete Beams With Coconut Shell As Coarse Aggregates pdf download This has necessitated research into alternative materials of construction. The project paper aims at analyzing flexural and compressive strength characteristics of concrete produced using crushed, granular coconut as substitutes for conventional coarse aggregate with ...
The coconut shell is more resistant to acidic, salty and alkaline attack. The characteristic properties of concrete such as compressive strength, split tensile strength, flexural strength, impact resistance, bond strength using the mix made by replacing coarse aggregates with coconut shell .
Feb 05, 2019· APPLICATION OF COCONUT SHELL AS COARSE AGGREGATE Properties of coconut shell which may make it suitable coarse aggregate for concrete are i) it's high strength and moduluspropertiesii)it's high lignin content that makesthe composites more weather resistant iii) it's low cellulose content due to which it absorbs less moisture as compared ...
"Coconut Shell as Partial Replacement of Coarse Aggregate in Concrete" - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. partial replacement of coarse aggregate
Abubakar, Exploratory Study of Coconut Shell as Coarse Aggregate in Concrete, Journal of Engineering & Applied sciences, vol.3, December 2011. [5] Daniel Yaw Osei, Experimental assessment on coconut shells as aggregate in concrete, International Journal of Engineering Science Invention, vol. 2, Issue 5, May 2013.
PDF | Aggregates provide volume at low cost, comprising 66 percent to 78 percent of the concrete. ... Lightweight Concrete Using Coconut Shells as Aggregate. ... coconut shell as coarse aggregate ...
Egg Shell As A Fine Aggregate In Concrete For Sustainable Construction S.A. Raji, A. T. ABSTRACT: This work has investigated the potential use of usedegg shell as a concrete material. The usedegg shells were used as fine concrete aggregate. In the laboratory test, conventional fine aggregate was replaced at replacement level.
Jun 01, 2017· Performance of coconut shell as coarse aggregate in concrete. ... (vi) sugar in the coconut shell is not in a free sugar form, and therefore does not affect the setting and strength of concrete; ... M.S. AbubakarExploratory study of coconut shell as coarse aggregate in concrete. J. Eng. Appl. Sci., 3 (2011), pp. 61-66.
aggregate. Coconut shell can be grouped under lightweight aggregate. 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
coconut shells as coarse aggregate replacement. Furthermore, in this study, the effect of fly ash as cement replacement and aggregate replacement on properties of the coconut shells replaced concrete was also investigated. The concrete obtained using coconut shell aggregates satisfies the minimum requirements of concrete.
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.
Abstract. An experimental investigation was carried out to study the durability properties of Coconut Shell (CS) aggregate concrete. Effect of mineral admixtures such as fly ash and ground granulated blast furnace slag (GGBFS) as partial replacement of cement on durability properties of CS aggregate concrete was also verified.
A comparative study ofconcrete properties using coconut shell and palm kernel shell as coarse aggregates E.A. Olanipekun, K.O. Olusola, O. Ata Department of Building, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria Received 5 July 2004; received in revised form 5 January 2005; accepted 13 January 2005 Abstract
3.4 Coconut Shell Aggregate The coconut shells are obtained from a local coconut field. They are sun dried before being crushed manually. Coconuts show a wide diversity in size, weight, shape and color, depending on genetic variety and maturity of the nut at harvest. The particle sizes of the coconut shell range from 5 to 20 mm.
Journal of Engineering Science and Technology Review 6 (5) (2013) 7-14 Research Article Sustainable Management of Waste Coconut Shells as Aggregates in Concrete Mixture Tomas U. Ganiron Jr School of Engineering, Auckland University of Technology, New .
[4] Abdulfatah Abubakar and Muhammed Saleh Abubakar, Exploratory Study of Coconut Shell as Coarse Aggregate in Concrete, Journal of Engineering & Applied sciences, vol.3, December 2011.
This makes it a material of choice in construction. 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.
Jun 01, 2017· Results revealed that with 40% replacement of conventional coarse aggregate by coconut shell, 7 days compressive strength of concrete decreased by 62.6%; whereas decrease in 28 days compressive strength was only 21.5%. 40% replacement makes the concrete lighter by 7.47%.
Oct 13, 2018· Discarded fresh coconut shells were crushed mechanically and used as coarse aggregate with fly ash (FA) as partial replacement of Portland cement at 15% and 20% replacement levels by weight. Slump flow, T 500, V-funnel, L-box, and wet sieve segregation tests were used to evaluate the self-compactibility of the developed mixes. For comparison ...
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 28-day cube compressive strength of the concrete using coconut shell aggregate were 1975 kg/m3 and 19.1 N/mm 2, respectively.
Water Absorption of Coconut shell =1% Slum required =50-100mm Free moisture in sand =2% 3.6. Preparation of Specimen 3.6.1. Measurements of Ingredients: All cement, sand, coarse aggregate and coconut shell measured with digital balance. Water is measured measuring cylinder of capacity 1 lit and measuring jar of capacity 100 ml and 200 ml. ...
Oct 09, 2014· This indeed is an interesting question. I came across some research papers. I think, this particular review Paper has an answer to your question. Please read the conclusion from the paper given below. > * The possibility exists for the partial rep...
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