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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 was used throughout the study.
Coconut shell is categorized as light weight aggregate. The coconut shell when dried, contains cellulose, lignin, pentosans ... replaced the coarse aggregate by coconut shell and grained palm kernel in their study. Percentage of. ... Performance of Waste Coconut Shell as Partial Replacement of Natural Coarse Aggregate in concrete ...
[4] Abdulfatah Abubakar and Muhammed Saleh Abubakar, Exploratory Study of Coconut Shell as Coarse Aggregate in Concrete, Journal of Engineering Applied sciences,, 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.
that agriculture waste coconut shell can also be used as coarse aggregate for concrete. 2. COCONUT SHELL Coconut is grown in more than 93 countries. India is the third largest, having cultivation on an area of about million hectares for coconut production. Annual production is about 7562 million nuts with an average of
Nowadays, the rising cost of building materials for construction purposes is a factor of great concern. The price of building materials is rising day by day. Now, most of the researchers are paying much attention on the suitable materials which can
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.
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 N/mm 2, respectively.
A comparative study ofconcrete properties using coconut shell and palm kernel shell as coarse aggregates Olanipekun, Olusola, O. Ata Department of Building, Obafemi Awolowo University, IleIfe, Osun State, Nigeria Received 5 July 2004; received in revised form 5 January 2005; accepted 13 January 2005 Abstract
Abubakar, Exploratory Study of Coconut Shell as Coarse Aggregate in Concrete, Journal of Engineering Applied sciences,, 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.
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 Vol. 7 (2012). ...
USE OF COCONUT SHELL FROM AGRICULTURE WASTE AS FINE AGGREGATE IN ASPHALTIC CONCRETE ... studied the properties of concrete that using coconut shell as coarse aggregate and the result is the compressive ... aggregates. It shows that coconut shell has .
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
replacing coarse aggregate using coconut shell", Journal of today''s Ideas,Tomorrow Technology, vol 2 No. 1, June 2015, PP 114 [3] Devanshu Ahlawat, L. G. Kalulkar, "Coconut shell as a partial replacement of coarse aggregate in concrete", IOSR, journal of Mechanical and civil engineering, eISSN, pp 6164
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Egg Shell As A Fine Aggregate In Concrete For Sustainable Construction 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.
Concrete is a composition of cement, coarse aggregate, fine aggregate and water which makes it a composite material. Fly ash which is a waste material is used as a supplementary cementitious material in the production of Portland cement and when added to concrete, it gives good workability, greater strength, decreases permeability and increases durability. Coconut fiber is an agricultural ...
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 28day airdry 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.
Coconut Shell as Coarse aggregate and Steel fibres in addition to its Concrete volume ... The figure 2 shows coconut shell aggregate before crush and Figure 3 shows ... Potable water is mostly initiated in fresh concrete and curing of specimens which remain free of charge from all impurities.
Coarse Aggregate Coconut Shell Ash Cement Cement is used right from ancient periods in construction industry. In the most general sense of the word, cement is a ... amounts of free CaO or MgO are present in the cement, these oxides can slowly hydrate and cause expansion of
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; ... AbubakarExploratory study of coconut shell as coarse aggregate in concrete. J. Eng. Appl. Sci., 3 (2011), pp. 6166.
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 ...
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