The major part of construction industry is based on concrete. In concrete the vital and costly material after cement is aggregate. Hence it affects economy. Also coconut being widely produced in states of Maharashtra, Kerala, Karnataka and region nearby seashore. Coconut shells can be available in adequate quantity. According to study on coconut shell …

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.

The use of coconut shell as coarse aggregate in concrete has never been a usual practice among the average citizens, particularly in areas where light weight concrete is required for non-load bearing walls, non-structural floors, and strip footings. Although coarse aggregate usually take about 50% of the overall self-weight of concrete.

 · The ultimate bond strength of coconut shell aggregate concrete under all types of curing conditions was much higher compared to the theoretical bond strength as per …

4. The 28 days compressive strength of coconut shell concrete was found to be 14.88 for 50% replacement by coconut shell aggregate under full water curing and it can be used for less important work. 5. Reduction in weight found to be 15% and 25% for replacement by coconut shell aggregate 25% and 50% respectively.

 · The possibility of utilizing recycled coconut shell aggregates in concrete as coarse aggregate is examined in the present study. 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%, …

The properties of coconut shell aggregate as given in below table TABLE- 2.1 PROPERTIES OF COCONUT SHELL S. No. Properties Results 1 Specific Gravity 1.13 2 Water Absorption (%) 24 3 Fineness modulus 6.48 4 Moisture Content (%) 4.2 B. Fine Aggregate The sand helps the concrete to fill the voids between coarse aggregate and makes concrete more ...

 · The use of coconut shell as coarse aggregate in concrete has never been a usual practice among the average citizens, particularly in areas where light weight concrete is required for non-load bearing walls, non-structural floors, and strip footings. Although coarse aggregate usually take about 30% of the overall self weight of concrete.

 · PDF | This study examined the structural behavior of lightweight concrete made with crushed coconut shell aggregate (CCSA) and normal weight concrete... | Find, read …

 · 6.1 Hollow Blocks. Hollow blocks produced from coconut shell aggregate concrete were studied for the basic properties, viz., shrinkage characteristics, durability properties and bond strength. It was found that CS played a significant role in reducing the shrinkage cracks in CSAC compared to the conventional concrete.

 · replacing 18.5% of the crushed granite with coconut shell aggregate can be economically used in reinforced concrete. A review of the state of the art use of coconut …

 · For enhancing the mechanical properties polypropylene fiber of varying percentage study on lightweight concrete made by coconut shell, they concluded that at …

 · The cost of traditional materials used in the concrete is the major factor which is increasing cost of constructions, so it is necessary to research for alternative construction materials. In this experimental investigation, the coconut shell used as a light weight aggregate in concrete, the properties of coconut shell concrete examined, Control …

 · replacing 18.5% of the crushed granite with coconut shell aggregate can be economically used in reinforced concrete. A review of the state of the art use of coconut shell aggregate in concrete was reported by Maninder[7]. III. EXPERIMENTAL PROGRAMME If structural light weight concrete (LWC) can be

 · The density, slump and compressive strength of concrete are tested. The replacement of coarse aggregate by coconut shell by 0%, 10%, 20% and 30%.

Figure 6 shows the low magnification SEM crack images between the cement paste and the coconut shell aggregate. The bonding strengths between the cement paste and the coconut shell aggregate was studied. Figure 7 gives the microstructure of the cement paste and CS fractures cured for 3, 7, and 28 days, respectively. The width of the cracks ...

 · DOI: 10.15415/JOTITT.2014.21004 Corpus ID: 45783740; Sustainable Concrete by Partially Replacing Coarse Aggregate Using Coconut Shell @inproceedings{Shraddha2014SustainableCB, title={Sustainable Concrete by Partially Replacing Coarse Aggregate Using Coconut Shell}, author={D. Sirsat Shraddha and …

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 …

 · Tamilnadu, India. Abstract In this project, an experimental investigation of M25 grade of concrete with water cement ratio 0.42, by using coconut shell aggregate added in percentage of 0, 5, 10, 15 and 20 to test the effectiveness of coconut shell within the concrete, and also added steel fibers constant proportion of 0.5% by volume of the ...

 · Download Citation | Experimental investigation on lightweight concrete by replacing the coarse aggregate with coconut shell and expanded polystyene beads and …

 · Coarse aggregate was replaced by crushed coconut shells in three different percentages namely 25%, 50% and . Workability, …

 · The density of the light weight concrete was 1850 kg/m3. 2. Objectives. 1) To find the viability of using coconut shell as a replacement of coarse aggregate in concrete production. 2)To minimize the diminshment of natural aggregate to keep natural balance.

There is no need to treat the coconut shell before use as an aggregate except for water absorption. REFERENCES [1] Apeksha Kanojia, S.K. Jain:"Performance of Coconut Shell as Coarse Aggregate in Concrete: A Review"(2015), International Research Journal of Engineering and Technology (IRJET), Volume: 02 Issue: 04 | July-2015.

 · 1. To determine the compressive strength of concrete containing coconut shell. 2. To determine flexural strength of concrete containing coconut shell. Significant of Study The significant of this research was to investigate whether coconut shell can be used as a partial replacement for coarse aggregate in concrete and the optimum ratio that the ...

 · coconut shell are used as aalternative for coarse aggregate in concrete. After the coconut is tattered out, the shell is regularly discharged. The bulk density of coconut shell is about 500 to 600 kg/m3, producing concrete of about less than 2000 kg/m3 in density, which makes them lightweight. The coconut shell concrete

 · The average fresh concrete density and 28-day cube compressive strength of the concrete using coconut shell aggregate …

 · used where light weight concrete is required. Proper ... replacing coarse aggregate using coconut shell", Journal of today's Ideas,Tomorrow Technology, vol 2 No. 1, June 2015, PP 1-14 ... study on compressive and bond strength of coconut shell aggregate concrete", Construction and building materials, 28(2012)208-2015, ...

 · The present study concentrated on the density and strength characteristics of Alccofine (ultrafine GGBFS)-based coconut shell lightweight concrete (30CS 6A, 30CS 8A, 30CS 10A, 30CS 12A) to arrive at an optimum mix. 30CS 8A (replacing 30% of natural aggregate with coconut shell aggregate and 8% of cement with Alccofine) has arrived as …

 · The materials used for this research are Ordinary Portland cement (OPC), coarse aggregate, fine aggregate (sand) and coconut shell aggregate as raw materials. Cement Ordinary Portland Cement was used for this research as it meets the standard stipulated in BS EN 197-1 [ 18 ]—M32.5 with respect to EN 197-1 [ 18 ], composition, …

 · PDF | This study examined the structural behavior of lightweight concrete made with crushed coconut shell aggregate (CCSA) and normal weight concrete... | Find, read and cite all the research you ...

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 …

 · 2.70. This indicates that coconut shell is lighter than coarse aggregate and more volume of coconut shell will be required to replace equal weight of coarse aggregate in concrete. The bulk density of coconut shell obtained is 648 which far less thanis about 1437 of coarse aggregate implying its good for lightweight concrete.