Experimental setup and Methodology
1. Small introduction
2. Materials used ( explain each one)
- Cement
- Admixture (
- Fly ash
- Course aggregate
- Fine aggregate
3. Mixing and casting procedures
4. Methodology
The methodology used in this project is based on the comparison which is done between the normal concrete mix and three other mixes containing fly ash. These mixes are classified in:
• Replacing 10% of the cement content with fly ash
• Replacing 20% of the cement content with fly ash
• Replacing 30% of the cement content with fly ash
Test will be conducted on the casted sample:
• Slump test
• Compressive strength
• Flexural strength
• L-box test
Strength and workability test To find out the best durable mix with high quality by using a waste material like fly ash of to encourage the use of self-compacting concrete in Oman
Further the admixture (Range Superplasticizer)
• The water cement ratio 0.36
• The temperature will be measured it was founded to be (30o C)
• The workability test was conducted by using slump test and L-box
• 3 cubes (150x150x150) 28 days test for each percentage
Results and discussion
Write tables # discuss all the table # graph for each test (20)pages
To find Strength
1. Compressive strength
Compressive strength test is done by applying a force on the cubes in the compressive machine to measure the limit of Compressive strength till the cubes is crashed.
| |
7 days |
14 days |
28 days |
| Normal concrete 0% |
38.6 N/mm2 |
44.1 N/mm2 |
48.25 N/mm2 |
| 10% |
36.7 N/mm2 |
43 N/mm2 |
47.59 N/mm2 |
| 20% |
32.6 N/mm2 |
39.3 N/mm2 |
43.2 N/mm2 |
| 30% |
28 N/mm2 |
35.7 N/mm2 |
40.8 N/mm2 |
To find Workability
2. Slump test
| |
Fresh concrete |
| Normal concrete 0% |
600mm |
| 10% |
600mm |
| 20% |
550mm |
| 30% |
520mm |
3. L-box test
|
No
|
mix
|
time
|
|
Mix 1
|
Normal self-compacting concrete
|
7 sec
|
|
Mix 2
|
Self-compacting concrete with 10% of fly ash
|
6 second
|
|
Mix 3
|
Self-compacting concrete with 20% of fly ash
|
5 second
|
|
Mix 4
|
Self-compacting concrete with 30% of fly ash
|
5 second
|
|
|
|
|
4. Flexural strength