آخرین محصولات

Predictive model of the compressive strength of concrete ...

The increasing demand of cement in construction has raised lots of sustainability concerns. However, the application of agricultural wastes such as coconut shell ash (CSA) as a partial replacement of cement holds great prospects for sustainability in the construction industry.

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ISSN 2348 – 7968 Assessment of Groundnut Shell Ash …

 · This paper assesses the effect of Groundnut Shell Ash (GSA) as admixture on cement paste and concrete. The GSA used was obtained by controlled burning of groundnut shell in an incinerator to a temperature of 600°С and after cooling was sieved through a 75µm sieve and characterized. The effects of GSA on cement paste were investigated for ...

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Properties of concrete with eggshell powder as …

The concrete compressive strength increased to 4.41%, 7.35, and 14.70 over the control mixture when using 5%, 10%, and 15% eggshells ash, respectively, at 28 days.

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[PDF] Coconut Shell Ash As Partial Replacement of …

Corpus ID: 5821117. Coconut Shell Ash As Partial Replacement of Ordinary Portland Cement In Concrete Production @article{Utsev2012CoconutSA, title={Coconut Shell Ash As Partial Replacement of Ordinary Portland Cement In Concrete Production}, author={Utsev and Taku}, journal={International Journal of Scientific & Technology Research}, year={2012}, volume={1}, pages={86-89} }

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Use of coconut shell ash as light-weight aggregate in ...

 · Water per cement ratio are 0.6 by weight. The concrete block samples were casted by the general production as same as the ordinary concrete blocks and were tested follow TIS.58. From the results, the best amount of coconut shell ash which put into concrete

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INVESTIGATE THE COMBINATION OF COCONUT SHELL …

 · coconut shell as substitute for either fine or coarse aggregate in concrete production. (Olanipekun et al., 2006) Investigated the comparative cost analysis and strength characteristics of concrete produced using crushed, granular coconut and Palm kernel shell as substitutes for conventional coarse aggregate. It was concluded that the coconut shell

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Coconut Shell Ash as Partial Replacement of Ordinary ...

 · coconut shell ash (CSA) for use in partial replacement of cement in concrete production. The objectives include ascertaining the optimum replacement level of Portland cement with CSA that will still give required compressive strength as well as compare thesetting times of OPC paste with OPC- CSA pastes at various replacement levels.

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Analysis the effect of coconut shell ash powder on cement ...

 · The contribution of each input factors are shown in table 3. The weight percentage of coconut shell ash and stone powder has been produced 69.31% of effect on strength of the concrete cement block. Download : Download high-res image (150KB) Download : Download full-size image. Fig 1.

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The effect of fly ash and coconut fibre ash as cement ...

 · Concrete is the backbone material in the construction field. The main concept of the concrete material is composed of a binder and filler. Cement, concrete main binder highlighted by environmentalists as one of the industry are not environmentally friendly because of the burning of cement raw materials in the kiln requires energy up to a temperature of 1450° C and the output air …

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Young Coconut Husk Ash as Partial Cement Replacement …

 · To address the increasing amount of municipal and urban wastes brought about by tough and heavy biodegradable wastes from popular consumption of young coconut water and meat in municipal and urban centers in the country, a study is conducted to utilize these waste materials into ash to substitute cement for concrete production. Wasted young coconut husks with their shells were …

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COCONUT SHELL ASH AS PARTIAL REPLACEMENT OF …

 · The coconut shell ash (CSA) that passed through will be considered as partial replacement for ordinary Portland cement (OPC). 5.3 preparing the materials. 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. 1.

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Influence of coconut shell ash on workability, mechanical ...

 · 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 ...

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Coconut Shell Ash as Cementitious Material in Concrete: …

 · to produce ash. The coconut shell ash was sieved through #200 sieves as shown in Figure 2 and it can be used as a cement replacement material in concrete. The experimental results conducted on CSA were obtained from previous studies as tabulated in Table 1.

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CiteSeerX — Coconut Shell Ash As Partial Replacement of ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract- The cost of cement used in concrete works is on the increase and unaffordable, yet the need for housing and other constructions requiring this material keeps growing with increasing population, thus the need to find alternative binding materials that can be used solely or in partial replacement of cement.

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Sustainable Management of Waste Coconut Shells as ...

 · the agricultural waste. The used of coconut fiber and coconut shell could be a valuable substitute in the formation of composite material that can be used as a housing construction, such as concrete hollow block [1]. Coconut is famous as multi-function plant that all parts of its plant can be used for various activities [1], [2].

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A Study on the Utilization of Coconut Shell as Coarse ...

 · The density of coconut shell was in the range of 550 - 650 kg /m3 and was within the specified limit for qualifying as lightweight aggregate. Amarnath and Ramachandrudu [4] studied the effect of fly ash on concrete with coarse aggregate partially replaced with coconut shell aggregate. It was

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Strength Properties of Concrete Containing Coconut …

 · coconut shell. The result also shows that the slump decreases with increase in the amount of coconut shell 25used, which indicates that more water is required to maintain the same consistency as coconut shell content increases. For instance at 10%, 20%, 40%, 60%, 80% and coconut shell content, the slump decreases by 19.05%, 33.33%, 42.86%,

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Performance of coconut shell as coarse aggregate in …

 · M20 mix design was carried out for control mix (i.e. without coconut shell) according to Indian standards .Detailed procedure of mix design is provided in Annexure A.The concrete mix was designed for slump of 60 mm.Using same mix design, coconut shell concrete was prepared by replacement of conventional crushed coarse aggregate (CA) with waste coconut shell (CS).

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Young Coconut Husk Ash as Partial Cement Replacement …

Young Coconut Husk Ash as Partial Cement Replacement in Masonry Application Olan L. Racaza | Ruel R. Cabahug. Abstract: To address the increasing amount of municipal and urban wastes brought about by tough and heavy biodegradable wastes from popular consumption of young coconut water and meat in municipal and urban centers in the country, a study is conducted to utilize these waste materials ...

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The effect of fly ash and coconut fibre ash as cement ...

Concrete is the backbone material in the construction field. The main concept of the concrete material is composed of a binder and filler. Cement, concrete main binder highlighted by environmentalists as one of the industry are not environmentally friendly because of the burning of cement raw materials in the kiln requires energy up to a temperature of 1450° C and the output air waste CO

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The Nature of Coconut Fibre Fly Ash-Based Mechanical ...

Environmentally friendly concrete uses industrial waste as a substitute for cement, such as rice husk ash, palm burning ash, coal burning ash or fly ash. Today, the development of the use of fly ash as a substitute for cement has been widely used, especially in geopolymer concrete. This study uses natural fibres such as coconut fibre.

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Influence of Ash and Coconut Shell Against Compressive ...

Pervious concrete or non-fine concrete is a simple form of lightweight concrete made by eliminating the use of fine aggregates. As a result of not using fine aggregate in pervious concrete, then created a cavity filled with air and water can be passed. This cavity resulted in reduced density of the concrete as well as the reduced amount of area that needs to be covered by cement paste, thereby ...

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Coconut Shell as Partial Replacement for Coarse …

 · 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 184 within the range of structural lightweight concrete. Coconut shell aggregate concrete satisfies the requirements of ASTM C 330. Reference

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COMPRESSIVE STRENGTH AND DURABILITY OF …

cement with coconut shell ash (CSA) in its compressive strength, sorptivity, and RSA. CSA in this study was classified as a Class N pozzolan, a cementitious material that make a cheaper substitute ...

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Philippine EJournals| Crushed Coconut Shell as …

The growing problem in waste prompted the researchers to use coconut shell as additives in concrete mixture, and to determine whether it significantly increases the flexural and compressive strength of concrete. This study used experimental design to determine …

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A Study on the Utilization of Coconut Shell as Coarse ...

 · 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.

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COCONUT SHELL AS AGGREGATE IN CONCRETE

 · Coconut shell (CS) is used as aggregate in concrete. Now-a-days there is large use of aggregate is increasing day by day so rather than using coarse aggregate in concrete, natural material coconut shell shall be used for some construction. Coconut shell is a waste material from coconut and it is quite strong like aggregate.

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COMPRESSIVE STRENGTH AND DURABILITY OF …

 · This study aims to investigate the effects of partially replacing cement with coconut shell ash (CSA) in its compressive strength, sorptivity, and RSA. CSA in this study was classified as a Class N pozzolan, a cementitious material that makes a cheaper substitute for ordinary Portland cement (OPC).

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