Hence, coconut shell may not degrade once it is bound with concrete. The properties such as compressive strength, splitting tensile strength, flexural strength and elastic modulus were studied. The durability properties such as sulphuric acid (pH1 pH2) resistance and sulphate (sodium and magnesium sulphate) resistance were studied on 120 days.
This paper centers around the study of physical and mechanical properties of concrete reinforced with coconut fibre and the coarse aggregates of which are partially replaced with coconut shells. American Concrete Institute (ACI) method has been used to design M20 concrete wherein coconut shells (CS) replaced the coarse aggregates (CA) by 6%, 8%, 10%, 12% and 14% by volume.
The coconut shell ash (CSA) that passed through will be considered as partial replacement for ordinary Portland cement (OPC). Buy sand (natural sand) and cement, then prepare the tools and materials to be use in the desired mixture for making the concrete paving blocks sample.
The properties of coconut shell and coconut shell aggregate concrete is examined and the use of coconut shell aggregate in construction is tested. Moisture content and water absorption were % and 24% respectively and these values are more compared to conventional aggregate.
The physical properties of a coconut shell, its moisture content, water absorption, specific density, impact value, flakiness index and elongation index, were determined.
The grade of concrete to be used in this project is M25 for both conventional concrete and coconut shell concrete. Table 4:Mix proportions and water cement ratio Grade and type of concrete Mix Proportions C:FA:CA Water/cement ratio (w/c) Control concrete (CC) 1: : Coconut shell concrete (CSC) 1: :
Mechanical properties of coconut shell as coarse aggregate in Lightweight concrete Coconut shell is an agricultural waste from the processing of coconut, the knowledge of it's engineering properties can boost the usage and the confidence of the designer in utilizing it as an alternative material of application in civil engineering construction.
Coconut shell is categorized as light weight aggregate. The coconut shell when dried, contains cellulose, lignin, pentosans and ash in varying percentage [6]. Withal, in Asia the construc tion industry is yet to utilize the advantage of light weight concrete in the construction of high rise structures [7].
Coconut Shell: In order to analyze the properties of coconut available oil mills and coconut industries as a half rounded shells. The coconut shell will be having a thickness range of 39 mm. The collected coconut shells were crushed in to smaller pieces having a range of about 310 mm in length.
chemical composition to hard wood. Coconut shell has good durability characteristics, high toughness abrasion resistant properties. Coconut shell which is crushed in appropriate sizes (Fig. 1) can be used in concrete. Literature study shows 10% replacement is optimum. Coir Fibres
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.
Olanipekun (2006) investigated the properties of coconut shells (CCS) and palm kernel shells (PKS) as coarse aggregates in concrete. The CCS were crushed and substituted for conventional coarse aggregates in gradations of 0%,
A Study on the Utilization of Coconut Shell as Coarse; 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
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
irradiation system was used to produce coconut shell activated carbon (CSAC) using KOH as an activating agent. The properties of the activated material such as surface area, pore size and specific capacitance value were analysed to study the potential of the material for supercapacitor electrode. MATERIALS AND METHODS Preparation of activated carbon
Feb 26, 2016· 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 partial replacement using M30 grade concrete. Beams are casted, tested and their physical and mechanical properties are determined.
Experimental study on strength characteristics on M ... 20% and 30% of coconut shell as coarse aggregate for concrete of grade M25. Examine strength characteristics such as compressive strength, split tensile strength and flexural strength of concrete mix are found for 7 days, 14 days, 28 days, ... The physical properties of coconut shell are ...