Paper Key : IRJ************293
Author: Siraj Aziz
Date Published: 31 Oct 2023
Abstract
Cement Kiln Dust has not yet been employed in cement as a whole or partial substitute for FA in concrete mix, leaving a research void in this area. Therefore, using CKD will also protect the environment from pollution brought on by CKD dust particles together with the examination of research gaps. As some of the cement manufacturing factories are not able to reuse cement kiln dust in formation of cement as it is very expensive process so we could save man power as well as financial expenditures yearly. The study aims to determine the performance of concrete utilizing CKD as sand substituting item. Total ten mixes were prepared with 1:2:4 ratio. Replacement rates were 10%, 20%, 30% 40%, 50%, 60%, 70%, 80%, 90% and 100% for CKD as substtute of sand . Cubical specimenscompression strengths were tested after 7 and 28 days of curing . Additionally, research was done on dry density and water absorption. As per observed results, 10% replacement of CKD for Sand yielded maximum strength among all mixes. However, only One of the CKD mixes achieved little higher strength than controled mix. Besides, water absorption decreased by mixing CKD while Slump also decreased to Zero slump. While dry density of CKD ranges in between 2400 Kgm3 to 2600 Kgm3.