Coconut shell aggregate resulted in acceptable strength which is required for structural concrete. Coconut shell may present itself as a potential material in the field of construction industries. The coconut shell is compatible with cement and no need to pretreatment for using it as coarse aggregate.
The usedegg shells were used as fine concrete aggregate. In the laboratory test, conventional fine aggregate was replaced at 100% replacement level. A total of 18 cubes were cast, cured and tested. The strength development of the concrete mixes containing egg shell aggregates was compared to that of conventional concrete with sand as fine aggregate. The result showed a reduction in compressive .
The results also indicated cost reduction of 30% and 42% for concrete produced from coconut shells and palm kernel shells, respectively. Considering the strength/economy ratio, it was concluded that coconut shells were more suitable than palm kernel shells when used as substitute for conventional aggregates in concrete production. r 2005 ...
AN EXPERIMENTAL STUDY ON CONCRETE USING COCONUT SHELL ASH AND EGG SHELL POWDER R. Ranjith Kumar, R. Mahendran, S. Gokul Nathan, D. Sathya, K. Thamaraikannan Department of Civil Engineering, Shree Venkateshwara HiTech Engineering College, Gobi, Tamil Nadu, India. *Corresponding Author R. Ranjith Kumar
The coconut shell is light weight aggregate and more suitable for construction because toughness of coconut shell is high and which is easily available. II Objective: 1. To find economical materials for high cost construction. 2. To prepare lightweight concrete structure by using coconut shell as .
The coconut shell concrete was designed for the characteristic strength of 30 MPa with the incorporation of coconut shell as a replacement for fine and coarse aggregate at .
coconut shells up to 40% can be encouraged for field applications that help in p rotecting the environment, as well as producing the light weight concrete. Keywords: coconut shell, concrete, coarse aggregate, compressive strength, split te nsile strength, flexural strength.
Their combined citations are counted only for the first article. ... Sustainable Management of Waste Coconut Shells as Aggregates in Concrete Mixture. TU Ganiron Jr. Journal of Engineering Science and Technology Review 6 (5), ... Recycling of Waste Coconut Shells as Substitute for Aggregates in Mix Proportioning of Concrete Hollow Blocks.
In the experimental study an attempt is made by designing a concrete mix for a 28 day characteristic compressive strength of 20 N/mm2 as per IS 10262 (2009) and replacing the coarse aggregate with 25, 50, 75 80% of coconut shell on volume basis. The details of the mix proportions are given in Table 2.
Coconut Shells are more apt as low strengthgiving lightweight aggregate while restoring of general coarse aggregate in production of concrete. Metakaolin utilization as a restricted cement replacement material in mortar and concrete were studied extensively in recent years.
Fig. 1 Concrete beam casted using coconut shell as coarse aggregates. TEST RESULTS. A. Failure mode. In the control concrete beam initial crack is 35 kN. The coconut shell 25% beam initial crack is 25 kN. The coconut shell 50% beam initial crack is 30 kN. The coconut shell 75% beam initial crack is 35 kN. The failure beams as shown in the
using the coconut shell as aggregate in concrete can reduce the material cost in construction because of the low cost and abundant agricultural waste. Coconut Shell Concrete can be used in rural areas and places where coconut is abundant and may also be used where the conventional aggregates are costly.
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 were reviewed in .
Abstract: In this experimental study, the properties of recycled aggregate and coconut shell aggregate concrete are examined and the scope of recycled aggregate and coconut shell aggregate in construction is investigated. The basic properties of recycled and coconut shell aggregate concrete are examined wrtthe natural aggregate concrete. Basic changes in all aggregate properties were ...
– The results showed a reduction in compressive strength when 50 per cent of sea shells were used as an aggregate replacement, for both sand and gravel, compared to the control sample. Crushed and graded sea shells used in concrete displayed a lower porosity/permeability than plain concrete.
coconut shell as aggregate in concrete pdf. coconut shell concrete with the replacement of 16%, % and 20% by coarse aggregate By testing the concrete cubes, at th28 day 16% replacement of coarse aggregate by coconut shell shows that the strength of the coconut shell concrete was decreased by % from control mix.
cement. Agricultural waste material, in this case, coconut shells, which is an environmental pollutant, are collected and burnt in the open air (uncontrolled combustion) for three hours to produce coconut shell ash (CSA), which in turn was used as pozzolana in partial replacement of cement in concrete .
A comparative study of concrete properties using coconut shell and palm kernel shell as coarse aggregates. Building and Environment, 41(3), 297301. Olutoge F. (2010).
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 .
Construction aggregate, or simply "aggregate", is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world.
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