scholarly journals Influence of Coconut Fiber and Shell on Concrete

2020 ◽  
Vol 6 (8) ◽  
pp. 7-14
Keyword(s):  
Large Scale ◽  
Coarse Aggregate ◽  
Construction Material ◽  
Constructional Material ◽  
Coconut Shell ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
The People ◽  
Wide Range ◽  
Concrete Production

Concrete is a Composite material which is composed of Cement, fine aggregate, coarse aggregate binded together with a definite proportion of water. Concrete is widely used in every single construction work around the world. Due to large scale construction activities using conventional coarse aggregate such as granite as a constructional material extreme reduction in the natural stone deposit has been encountered and is affecting the environment, hence causing ecology imbalance. In current situation of construction, price factor and the wide range of extraction and processing of materialsis matter of great concern for the people as well as environment. Therefore, introduction of alternate waste material in place of natural aggregate in concrete production not only protects environment but also make concrete a suitable, economical and environment friendly construction material. Different material like Coconut Shell and Fiber can also be used alternatively. In this project Coconut Shell and fiber are used as partial replacement for coarse aggregate as well as fine aggregate, respectively. To study characteristic properties of concrete 10% and 20% for coarse aggregate and 1%, and 2% for fine aggregate are replaced by its weight with coconut shell and fiber.

scholarly journals EFFECT OF CRUSHED DOUM PALM SHELL AS PARTIAL REPLACEMENT OF COARSE AGGREGATE IN CONCRETE

2021 ◽  
Vol 4 (4) ◽  
pp. 1-9
Author(s):  
A. Z. Liman ◽  
T. Adagba ◽  
H. A. Umar
Keyword(s):  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Low Cost ◽  
Construction Material ◽  
Control Sample ◽  
Test Sample ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Palm Shell ◽  
Concrete Production

The use of alternative materials in place of natural aggregate in concrete production has been getting attention all around the globe; this makes concrete a sustainable and environmentally friendly construction material. In this study the use of crushed doum palm shell (CDPS) as partial replacement for coarse aggregate in concrete production was investigated. The concrete grade 30 was used for the research with a water /cement ratio of 0.45. The control sample contained normal concrete ingredient cement, fine aggregate and coarse aggregate. The CDPS replacement by weight was varied at 5%, 10%, 15%, 20%, and 25% respectively for the test sample. The 28-day compressive strength of the concrete using Doum palm shell aggregate was found to be 28.0 and 20.2 MPa at 5 and 10% replacement under full water curing and it satisfies the requirement for structural lightweight concrete which was more than 17MPa. The study recommended replacement of coarse aggregate up to a maximum of 10 % crushed doum palm shell for structural light weight concrete and it encourage the use of agricultural wastes in construction as an environmental protection and cost reduction measure. However, results from laboratory investigations indicated that crushed doum palm shell (CDPS) has good potential as a coarse aggregate for production of structural lightweight concrete, especially for low-cost housing and also for use in earthquake prone areas.

scholarly journals Experimental Study on Light Weight Concrete Using Coconut Shell and Fly Ash

2022 ◽  
Vol 10 (1) ◽  
pp. 752-758
Author(s):  
Barkha Verma
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Fresh Concrete ◽  
Industrial Wastes ◽  
Coconut Shell ◽  
Fine Aggregate ◽  
Concrete Production ◽  
Coconut Shells

Abstract: Aggregates provide volume at low cost, comprising 66% to 78% of the concrete. With increasing concern over the excessive exploitation of natural and quality aggregates, the aggregate produced from industrial wastes and agricultural wastes is the viable new source for building material. This study was carried out to determine the possibilities of using coconut shells as aggregate in concrete. Utilizing coconut shells as aggregate in concrete production not only solves the problem of disposing of this solid waste but also helps conserve natural resources. In this paper, the physical properties of crushed coconut shell aggregate were presented. The fresh concrete properties such as the density and slump and 28 days compressive strength of lightweight concrete made with coconut shell as coarse aggregate were also presented. The findings indicate that water absorption of the coconut shell aggregate was high about 24% but crushing value and impact value were comparable to that of other lightweight aggregates. The average fresh concrete density and 28days cube compressive strength of the concrete using coconut shell aggregate 1975kg/m3 and 19.1 N/mm2 respectively. It is concluded that crushed coconut shell is suitable when it is used as a substitute for conventional aggregates in lightweight concrete production. Keywords: Coarse Aggregate, Cement, Concrete, Fly Ash, Coconut shell Aggregate, Water, Compressive Strength, Workability, Fine Aggregate.

Effect of Substitution of Crushed Waste Glass as Partial Replacement for Natural Fine and Coarse Aggregate in Concrete

2016 ◽  
Vol 866 ◽  
pp. 58-62 ◽  
Author(s):  
Oluwarotimi M. Olofinnade ◽  
Julius M. Ndambuki ◽  
Anthony N. Ede ◽  
David O. Olukanni
Keyword(s):  
Coarse Aggregate ◽  
Waste Glass ◽  
Glass Content ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Fine Aggregate ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Concrete Production ◽  
Concrete Mix

Reusing of waste glass in concrete production is among the attractive option of achieving waste reduction and preserving the natural resources from further depletion thereby protecting the environment and achieving sustainability. This present study examines the possible reuse of waste glass crushed into fine and coarse aggregate sizes as partial substitute for natural fine and coarse aggregate in concrete. The variables in this study is both the fine and coarse aggregate while the cement and water-cement ratio were held constant. The crushed glass was varied from 0 – 100% in steps of 25% by weight to replace the both the natural fine and coarse aggregate in the same concrete mix. Concrete mixes were prepared using a mix proportion of 1:2:4 (cement: fine aggregate: coarse aggregate) at water-cement ratio of 0.5 targeting a design strength of 20 MPa. Tests were carried out on total number of 90 concrete cube specimens of size 150 x 150 x150 mm and 90concrete cylinder specimens of dimension 100 mm diameter by 200 mm height after 3, 7, 14, 28, 42 and 90 days of curing. Test results indicated that the compressive and split tensile strength of the hardened concrete decreases with increasing waste glass content compared with the control. However, concrete mix made with 25% waste glass content compared significantly well with the control and can be suitably adopted for production of light weight concrete.

scholarly journals Utilisation of Seasand as Partial Replacement of Fine Aggregrate to Strengthen the Concrete

2020 ◽  
Vol 9 (5) ◽  
pp. 891-894
Keyword(s):  
Construction Industry ◽  
Coarse Aggregate ◽  
Construction Material ◽  
Strength Properties ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
River Sand ◽  
Sea Sand ◽  
Quarry Dust

Concrete is an important construction material widely used in the construction industry nowadays. It is blended material consisting of cement, fine aggregate, coarse aggregate and water. Generally the use of river sand as fine aggregate in our country is very widespread in industry. This paper mainly focuses on the study of strength properties of concrete in which river sand is replaced with sea sand as fine aggregate. In addition to it, Quarry Dust when added gains strength. Different mix proportions was replaced partially in 5%, 10%, 15% by Sea sand and Quarry dust. The strength of concrete for various mix proportions are carried out and tested for 14, 28, 56 days of curing. From the results obtained, with the replacement of river sand by sea sand along with well graded quarry dust upto to 15% increases the strength of concrete.

scholarly journals Feasible and Experimental Study on Partial Replacement of Fine Aggregate using Construction Debris

2020 ◽  
Vol 13 (2) ◽  
pp. 47-53
Author(s):  
Arivalagan. S ◽  
Dinesh Kumar K S A ◽  
Sudhakar R
Keyword(s):  
Construction Industry ◽  
Coarse Aggregate ◽  
Construction Material ◽  
Construction And Demolition Waste ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Demolition Waste ◽  
River Sand ◽  
Conventional Concrete ◽  
Suitable Alternative

Concrete is the most widely used construction material today. The constituents of concrete are coarse aggregate, fine aggregate, coarse aggregate and water. Concrete plays a major role in the construction industry and a large quantum of concrete is being utilized. River sand, which isone of the constituent used in the production of conventional concrete, has become expensive and also a scarce material. In view of this,the utilization of demolished aggregate which isa waste material has been accepted as building material in many countries for the past three decades. The demand of natural sand in the construction industry has increased a lot resulting in the reduction of sources and an increase in price. Thus an increased need to identify a suitable alternative material from industrial waste in place of river sand, that is eco-friendly and inexpensive construction debris i.e fresh concrete being extensively used as an alternative to the sand in the production of concrete. There is an increase in need to find new alternative materials to replace river sand so that excess river erosion is prevented and high strength concrete is obtained at lower cost. One such material is building construction debris: a by-product obtained during construction and demolition waste. An experimental investigation is carried out on M 25 concrete containing debris during construction in the different range of 20%, 30% & 40% by weight of sand. Material was produced, tested and compared with conventional concrete in terms of workability and strength. These tests were carried out on standard cube of 150×150×150 mm and beam of 700×150×150 mm for 28 days to determine the mechanical properties of concrete.

scholarly journals Investigation on Mechanical properties of Partial replacement of Saw-Dust to Fine-Aggregate in Coconut-Shell Concrete

2018 ◽  
Vol 7 (2.12) ◽  
pp. 415
Author(s):  
Anandh S ◽  
Gunasekaran K
Keyword(s):  
Solid Waste ◽  
Coconut Shell ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Light Weight ◽  
Coconut Fiber ◽  
Conventional Concrete ◽  
Saw Dust ◽  
Fine Aggregates ◽  
Concrete Production

Concrete is the major composite material used in construction industry, it is strong in Compression and weak in tension and also has high self-weight. The light weight concrete was a alternative to conventional concrete due its low weight it decreases the self weight. Comparatively by using the light weight materials that occur either naturally or industrial waste, these material helps in reducing the cost and to improve the performance. Presently in India, more than 960 million tones of solid waste were being generated annually as by-products during industrial, agricultural mining and other processes. This paper deals with coconut shell concrete, which is one of the solid waste in the environment, and the use of this coconut shell as a replacement to coarse aggregate will reduce the weight of concrete by 25%. The other waste that was disposed mostly was sawdust. It was a byproduct of cutting or drilling of wood with saw or other tool. It is composed of fine particles of wood. It is having many advantages over traditional concrete like low bulk density, better heat preservation and heat insulation property. As said earlier to make concrete strong in tension coconut fiber is added, which is a waste material that left to disposal and as it is strong and stiff will hold the concrete material and also controls the crack. This study investigates on the use of sawdust as partial replacement for fine aggregates in concrete production. Sawdust was used to replace fine aggregates in Conventional and as well as in Coconut Shell concrete from 0%, 5%, 10% and 20%. M25 grade of concrete was selected and testing is evaluated at age of 3, 7 and 28 days. From the results, increase in percentage of saw-dust in concrete cubes led to corresponding reduction in compressive strength values, and the optimum saw-dust content was obtained at 5% in conventional as well as in coconut shell concrete , coconut fiber was added at the optimum value of sawdust on conventional and coconut shell concrete at 1%,2%,3%,4% and 5%. The better strength was obtained at 2% addition of fiber in coconut shell concrete and at 3% addition in conventional concrete. 

scholarly journals Concrete Mix Using Solid Waste Aggregates (Coconut Shell Concrete)

2019 ◽  
Vol 8 (10) ◽  
pp. 84-89 ◽  
Keyword(s):  
Coarse Aggregate ◽  
Low Cost ◽  
Agricultural Waste ◽  
Research Work ◽  
Coconut Shell ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Concrete Mix ◽  
The Cost ◽  
Cost Of Construction

Now days the cost of construction is increasing day by day due to increase in the prices of the building materials. The main ingredients of the concrete are coarse aggregate, fine aggregate and cement. Every construction company mainly depends on these ingredients for the production of concrete. In the present scenario most of the research work is done on how to reduce the cost of construction by increasing the strength of the concrete. Depending up on the properties many of the waste materials are used in the concrete as the partial replacement of aggregates. Mostly fly ash ,rice husk ash and blast furnace slag are found to be suitable for replacing the fine aggregate partially in concrete. Agriculture is the major occupation of the people in India and coconut production is one of the major agriculture production in India. The shell of the coconut is an agricultural waste and requires large amount of area for its dumping after its usage. It causes environment pollution if it is not dumped properly and creates major problem. If this coconut shell is used as replacement for coarse aggregate in concrete it gives solution to the major environmental pollution. Experiments have done on the effect of partial replacement of coarse aggregate with coconut shell for different percentages and investigated the properties of this composite concrete In this study, for M20 and M25 grades concrete four different concrete mixes for each grade with various combinations of coconut shell of about 0%, 10%, 20% and 30% were prepared. For each concrete mix three sample specimens were casted. The main focus behind this study is to utilize the agricultural waste like coconut shells which are of low cost when compared to the coarse aggregates and thus giving rise to the topic of how to construct the structures within low cost. In this study a short term analysis, at 28 days, the nature of coconut shell aggregate concrete is studied by conducting some tests like compressive strength, workability tests and comparison of these results are made with the normal concrete. In order to maintain serviceability, durability and strength of the members all the necessary precautions are taken. Thus by adopting this concept it will be very much helpful for the civil engineers and especially the society to fulfill their basic needs like low cost housing.

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