Recent Papers

In the earth surface the amount of waste material from industrial, agricultural has began the sustainability issue of the environment as well as ecology of earth. The production of waste account for the Global warming because it releases CO2 and other harmful gases during disposal or manufacturing. In this research work we use waste material Coconut Shell Ash (CSA) with replacement of cement. More then 108 specimens were prepared and tested by using CSA with the 0%, 2.5%, 5%, 7.5%, 10% and 12.5% as replacement with cement. After design mixed, we find the ratio of concrete mixed is 1:2.03:3.10 by weight of cement sand and coarse aggregate at the 0.55 water cement ratio. The properties of concrete and cement were studied include initial setting, final setting time, compressive strength, split tensile strength and flexural strength. The workability of CSA mixed concrete were tested immediately after preparing the concrete mixed and compressive strength were tested at 7 days and 28 days of curing ages. The addition of waste CSA increases the strength of concrete at the certain point after that it decreases. The compressive strength of CSA mixed concrete increases up to 10% of replacement to cement with amount of 28.44 Nmm2 then decrease. In the case of Split Tensile Strength and Flexural Strength also increases up to 7.5% of replacement of cement in CSA mixed concrete with amount of 3.81 Nmm2 and 9.16 Nmm2. Finally, we clearly say that the replacement of CSA to cement is up to 10% for compressive strength and up to 7.5% for the Split Tensile and Flexural Strength.

Copyright © 2023 WANKAR SANJAY NARAYAN. This is an open access article distributed under the Creative Commons Attribution License.