COCONUT SHELLS AS AGGREGATE REPLACEMENT IN CONCRETE
Cement is world's most broadly utilized development material. The use of cement is expanding at a higher rate because of improvement in foundation and development exercises all as far and wide as possible. The climbing expense of development material is a matter of concern. The purpose behind increment in expense is popularity of cement and shortage of crude material. Thus the solid technologists must look for some temperate elective to the coarse total. Therefore there is a need to explore and to find out suitable replacement material to substitute the natural gravel strength. However there are some negative effects of additional handling of cement like nonstop broad extraction of total from common assets will prompt its exhaustion and natural unevenness. Specialists are looking for displacing coarse total to make cement less costly and to lead feasible advancement. This ecological reason has created a considerable measure of concern in the development world. The utilization of sugarcane biases, wooden chips, plastic waste, material waste, polyethylene, rice husk fiery remains, elastic tires, vegetable filaments, paper and mash industry waste, groundnut shell, waste glass, broken blocks are a few cases of reinstating totals in cement. Coconut shell is arranged as light weight total. The coconut shell when dried holds cellulose, lignin, pentoses and cinder in fluctuating rate. In Asia, the development business is yet to understand the focal points of light weight solid in elevated structures. Coconut shells are not normally utilized as a part of development industry and are regularly dumped as an agricultural waste. As of not long ago, Industries by items and residential squanders has been used in cement, yet the utilization of agricultural waste in cement is in its outset stage. Coconut shell is a rural waste. Coconut shell being a hard and not easily degrade material if crushed to size of sand can be a potential material to substitute sand. At present, coconut shell has also been burnt to produce charcoal and activated carbon for food and carbonated drink and filtering mineral water use. However, the coconut shell is still under utilising in some places. The chemical composition of the coconut shell is similar to wood. It contains 33.61% cellulose, 36.51% lignin, 29.27% and ash at 0.61%. Coconut shells provide the similar properties as coarse aggregates used in concrete mix. This will bring an immense change in the development of high rise buildings.
As the increase in the usage of natural materials for the production of aggregate for concrete, it is effecting environment in a bad way. So, there is a need for the replacement of natural course aggregates with some other suitable materials like coconut shell chips. Comparing with the traditional course aggregates the coconut shells are equally effective. The overall cost of coconut chips is comparatively low as...