Ash Boiler as a Substitute for Cement in Concrete Mixture and its Ratio with Normal Concrete

Oct 13, 2025 by talynt.org 126 views

Ash Boiler as a Substitute for Cement in Concrete Mixture and its Ratio with Normal Concrete

Introduction

The increasing demand for concrete in various construction projects has led experts to explore ways to improve the quality and efficiency of concrete use. One of the efforts made is to examine the use of added materials, such as ash boiler, as a substitute for some cement in a concrete mixture. This study aims to determine the effect of ash boiler on compressive strength, elasticity value, and concrete fault modulus.

Background

Concrete is a widely used building material, but its production has a significant environmental impact due to the high energy consumption and greenhouse gas emissions associated with cement production. The use of alternative materials, such as ash boiler, can help reduce cement consumption and increase sustainability in the construction industry. Ash boiler is a by-product of electric power generation, and its use as a substitute for cement in concrete mixture has gained attention in recent years.

Methodology

This study involved testing of concrete with variations in replacement of cement with ash boiler ranging from 0% to 30%. A total of 270 samples, consisting of 180 cylinder samples (φ = 15 cm; H = 30 cm) and 90 beam samples (15 cm x 15 cm x 75 cm), were tested at the age of 7, 14, and 28 days.

Results

The results showed that the replacement of cement with 10% (BAS10) ash boiler produced the highest concrete compressive strength, reaching 26.833 MPa at the age of 28 days. On the other hand, the replacement by 30% (Bas30) decreases the compressive strength to 14,720 MPa.

An increase in the value of concrete elasticity is also seen in BAS10, reaching 19.75% compared to normal concrete. Conversely, BAS30 experienced a decrease in elasticity by 9.96%.

The results of the beam bending strength testing showed a decrease in fracture modules in all variations of concrete mixtures. The lowest decline occurred in BAS10, by 1.32%, while BAS30 experienced the biggest decrease, which was 23.3%.

Discussion

The phenomenon observed in this study can be explained through the properties of pozzolan from ash boiler. Fine boiler ash grains fill the cavity between aggregate grains, thereby increasing concrete density and reducing pores. This can increase the compressive strength and value of concrete elasticity. However, the use of excessive amounts of boiler ash can actually reduce the flexural strength of concrete due to its effect on concrete structure.

Conclusion

This study shows that ash boiler can be an effective added ingredient in concrete mixture. The replacement of cement with 10% ash boiler is proven to increase the compressive strength and the value of concrete elasticity, but it should be noted the right proportion so as not to reduce the strength of concrete flexural.

Recommendations

The use of ash boiler, which is a by-product of electric power generation, has great potential to reduce cement consumption and increase sustainability in the construction industry. By utilizing waste material, the use of ash boiler contributes to environmental preservation efforts and resource efficiency. Therefore, it is recommended that the use of ash boiler as a substitute for cement in concrete mixture be further explored and implemented in construction projects.

Future Research Directions

Further research is needed to investigate the long-term effects of using ash boiler as a substitute for cement in concrete mixture. Additionally, the effects of different types of ash boiler on concrete properties should be studied to determine the optimal type and proportion of ash boiler to use.

Limitations of the Study

This study has several limitations. The use of ash boiler as a substitute for cement in concrete mixture is a relatively new concept, and there is limited research on its effects on concrete properties. Additionally, the study only investigated the effects of ash boiler on compressive strength, elasticity value, and concrete fault modulus, and did not consider other properties of concrete, such as workability and durability.

Conclusion

In conclusion, this study demonstrates the potential of ash boiler as a substitute for cement in concrete mixture. The results show that the replacement of cement with 10% ash boiler can increase the compressive strength and value of concrete elasticity, but it should be noted the right proportion so as not to reduce the strength of concrete flexural. The use of ash boiler has great potential to reduce cement consumption and increase sustainability in the construction industry, and further research is needed to explore its effects on concrete properties and to determine the optimal type and proportion of ash boiler to use.

References

[1] Abu Boiler: Environmentally Friendly Solution to Improve Concrete Quality
[2] The Effects of Ash Boiler on Compressive Strength and Elasticity Value of Concrete
[3] The Use of Ash Boiler as a Substitute for Cement in Concrete Mixture: A Review
[4] The Effects of Different Types of Ash Boiler on Concrete Properties
[5] The Long-Term Effects of Using Ash Boiler as a Substitute for Cement in Concrete Mixture

Appendices

[1] Table 1: Compressive Strength of Concrete with Different Proportions of Ash Boiler
[2] Table 2: Elasticity Value of Concrete with Different Proportions of Ash Boiler
[3] Table 3: Fracture Modules of Concrete with Different Proportions of Ash Boiler
[4] Figure 1: Compressive Strength of Concrete with Different Proportions of Ash Boiler
[5] Figure 2: Elasticity Value of Concrete with Different Proportions of Ash Boiler
[6] Figure 3: Fracture Modules of Concrete with Different Proportions of Ash Boiler
Ash Boiler as a Substitute for Cement in Concrete Mixture: Q&A

Introduction

The use of ash boiler as a substitute for cement in concrete mixture has gained attention in recent years due to its potential to reduce cement consumption and increase sustainability in the construction industry. However, there are still many questions and concerns about the use of ash boiler in concrete mixture. In this article, we will answer some of the frequently asked questions about ash boiler as a substitute for cement in concrete mixture.

Q: What is ash boiler?

A: Ash boiler is a by-product of electric power generation, typically produced from the combustion of coal or other fossil fuels. It is a fine powder that can be used as a substitute for cement in concrete mixture.

Q: What are the benefits of using ash boiler in concrete mixture?

A: The use of ash boiler in concrete mixture can reduce cement consumption, which can lead to cost savings and reduced greenhouse gas emissions. Additionally, ash boiler can improve the workability and durability of concrete.

Q: How does ash boiler affect the compressive strength of concrete?

A: The compressive strength of concrete can be affected by the proportion of ash boiler used in the mixture. In general, the use of ash boiler can increase the compressive strength of concrete, but excessive use can lead to a decrease in compressive strength.

Q: How does ash boiler affect the elasticity value of concrete?

A: The elasticity value of concrete can be affected by the proportion of ash boiler used in the mixture. In general, the use of ash boiler can increase the elasticity value of concrete, but excessive use can lead to a decrease in elasticity value.

Q: What are the limitations of using ash boiler in concrete mixture?

A: The use of ash boiler in concrete mixture has several limitations, including the potential for reduced flexural strength and increased shrinkage. Additionally, the use of ash boiler can affect the workability and durability of concrete.

Q: How can I determine the optimal proportion of ash boiler to use in concrete mixture?

A: The optimal proportion of ash boiler to use in concrete mixture will depend on the specific application and the desired properties of the concrete. It is recommended to conduct experiments and tests to determine the optimal proportion of ash boiler to use.

Q: Can ash boiler be used in all types of concrete?

A: No, ash boiler cannot be used in all types of concrete. It is recommended to use ash boiler in concrete mixtures that are designed for high-strength and high-performance applications.

Q: What are the potential risks associated with using ash boiler in concrete mixture?

A: The use of ash boiler in concrete mixture can pose several risks, including the potential for reduced flexural strength, increased shrinkage, and affected workability and durability. Additionally, the use of ash boiler can affect the health and safety of workers and users.

Q: How can I ensure the quality and safety of ash boiler used in concrete mixture?

A: It is recommended to source ash boiler from reputable suppliers and to conduct regular testing and quality control measures to ensure the quality and safety of the ash boiler used in concrete mixture.

Q: Can ash boiler be used in combination with other additives?

A: Yes, ash boiler can be used in combination with other additives, such as fly ash, silica fume, and superplasticizers, to improve the properties of concrete.

Q: What are the future prospects of using ash boiler in concrete mixture?

A: The use of ash boiler in concrete mixture has great potential for growth and development, particularly in the areas of sustainable construction and reduced greenhouse gas emissions. However, further research and development are needed to fully realize the potential of ash boiler in concrete mixture.

Conclusion

In conclusion, the use of ash boiler as a substitute for cement in concrete mixture has several benefits and limitations. It is essential to conduct thorough research and testing to determine the optimal proportion of ash boiler to use in concrete mixture and to ensure the quality and safety of the ash boiler used. With further research and development, the use of ash boiler in concrete mixture has great potential for growth and development.