Strength And Elasticity of Concrete Incorporating with Coal Bottom Ash (CBA) as Cement and Sand Replacement Material

CE 3.1 Project Information
Name of the project: Strength And Elasticity of Concrete Incorporating with Coal
Bottom Ash (CBA) as Cement and Sand Replacement Material
Location of the project: Please fill
Project Duration: Please fill
Organization: Please fill
Role and Designation during the time: Project Developer
CE 3.2 Project Background
CE 3.2.1 Characteristics of the project
The incrementing CBA or coal bottom ash wastes are mainly because of the
continuous demands of resource utilization. CBA is applied as the part of cement mixing or
as the aggregate in concrete for the purpose of maintaining the sustainability. Due to the
environmental impact problem, CBA is used as the alternate material in production of
concrete. During this project, I investigated the effect of CBA as sand and cement
replacements towards the elasticity and strength of concrete. I sieved the raw materials of
CBA for passing 5mm sieve size as un-grinded CBA. The replacing sand content was 5%,
10%, 15% and 20% replacement levels. I even evaluated the mechanical properties with the
compressive strength test for 150mm diameter x 300mm height of cylindrical mould.
Therefore, in this project the grinded and the un-grinded CBA were utilized for sand and
cement replacement materials for giving better strength and elasticity results.

CE 3.2.2 Objectives developed for the project
Coal bottom ash or CBA is the portion of non combustible residue of combustion in
incinerator and furnace. In this project, I have explored the possibility of utilization of
grinded and un grinded coal bottom ash (CBA) in cement and sand in concrete. Hence, in
order to identify the uses of un grinded and grinded coal bottom ash, I have eventually
developed the following objectives.
 To identify the optimum content of grinded and un grinded CBA as cement and sand
replacement material in concrete.
 To determine the effect of grinded and un-grinded CBA on the strengths and elasticity
of concrete.
 To investigate the microstructure properties of concrete containing grinded and un-
grinded coal bottom ash.
 To set up an experimental design for better analysis and evaluation.
CE 3.2.3 My area of work
Before starting the work, I started to research on the previous records and data for
understanding the entire project properly. I learnt that cement is the most significant
construction material nowadays and it is facing an important issue of economy, productivity,
environment and quality. I identified the optimum content of all the grinded as well as un
grinded coal bottom ash as the replacements of cement and sand within concrete. I even made
the entire project report so that the entire project is documented perfectly. My other area of
work was to determine the elasticity and strength of concrete.

Head of the Department
Project Leader
Me (Project Developer)
CE 3.2.4 Project Group
Figure 1: People involved in the project
CE 3.2.5 My responsibilities throughout the project
In this project, I was responsible for investigating the microstructure properties of the
concrete slab that is containing grinded as well as un grinded coal bottom ash. My next
responsibility includes proper identification of the optimum content of the un grinded and
grinded coal bottom ash as the replacement of sand and cement respectively. For this
purpose, I had to clear all my doubts related to the un grinded and grinded concrete. I even
had to determine the total effect of the grinded and un grinded CBA over the strength as well
as elasticity of concrete slabs.