The Influence Of The Substitution Of Eggshell Ash In The Addition Of Cement And Boiler Crust As A Sand Substitution
The Influence of the Substitution of Eggshell Ash in the Addition of Cement and Boiler Crust as a Sand Substitution
Introduction
In recent years, the use of concrete in various aspects of life has dominated. Both in building construction, infrastructure, and small projects, concrete is the first choice because of its strength and durability. However, to improve the quality of concrete, many practitioners are starting to mix other ingredients. In this study, the focus is on the use of two additional ingredients, namely eggshell ash and boiler crust ashes. Eggshell ash is used as additional cement, while boiler crust ash functions as a substitute for sand. The use of these materials is an innovative step in the development of concrete, as it aims to increase the strength of this material while utilizing materials that are more environmentally friendly.
The Importance of Sustainable Materials in Concrete Production
The construction industry is one of the largest consumers of natural resources, and the production of concrete is a significant contributor to greenhouse gas emissions. The use of sustainable materials in concrete production is becoming increasingly important as the industry seeks to reduce its environmental impact. Eggshell ash and boiler crust ash are two materials that have been identified as potential substitutes for traditional concrete ingredients. Eggshell ash is a waste product from the food processing industry, while boiler crust ash is a waste product from the power generation industry. By utilizing these materials, the construction industry can reduce its reliance on natural resources and decrease its environmental footprint.
Research Methods
This study was conducted using variations of eggshell ash of 5% and 7.5%, and boiler crust ash at a proportion of 10%, 15%, and 25%. The test object used was a cylinder with a diameter of 15 cm and a height of 30 cm, as many as 42 pieces, which was tested at the age of 28 days. The purpose of this study is to obtain compressive strength values, tensile strength, cement tie time, concrete absorption, and slump value. The test results were analyzed to determine the effect of the substitution materials on the physical properties of concrete.
The Effect of Eggshell Ash and Boiler Crust Ash on Concrete Properties
The test results show that the addition of this substitution material affects the physical properties of concrete. There is a decline in the value of the slump and the time of the cement tie, which indicates that the use of eggshell ash and boiler crust ashes slows down the process of mixing and binding. However, compared to normal concrete, the absorption value of concrete has increased, with a maximum value found in variations of 7.5% of eggshell ash and 10% boiler crust ashes. This increase in absorption value may be due to the presence of pores in the concrete mixture, which can affect the strength and durability of the concrete.
The Impact of Eggshell Ash and Boiler Crust Ash on Compressive Strength and Tensile Strength
The value of concrete compressive strength has decreased. This can be caused by a shift in the proportion of the main component in a concrete mixture that reduces the effectiveness of cement. However, interestingly, the value of the tensile strength shows the maximum results in the variation of 7.5% of eggshell ash and 25% of boiler crust ashes. This finding shows that although the compressive strength is reduced, tensile strength can increase with the right composition of the material.
Conclusion
This study shows that the use of substitution materials such as eggshell ash and boiler crust ash has a significant impact on concrete characteristics. Although there is a decrease in several parameters such as compressive strength and cement bunch time, an increase in tensile strength and waste reduction is a significant added value. The results of this study provide new insights for the construction industry about the potential for environmentally friendly materials that can be used to increase sustainability and efficiency in concrete production. Thus, the application of this technique can help in efforts to protect the environment while meeting the needs of development that continues to increase.
Recommendations for Future Research
Based on the findings of this study, several recommendations for future research can be made. Firstly, further studies are needed to investigate the effect of different proportions of eggshell ash and boiler crust ash on the physical properties of concrete. Secondly, the use of other sustainable materials in concrete production should be explored. Finally, the long-term durability of concrete made with eggshell ash and boiler crust ash should be investigated to determine its potential for use in construction projects.
Limitations of the Study
This study has several limitations that should be noted. Firstly, the test results were obtained from a limited number of samples, which may not be representative of the entire population. Secondly, the study only investigated the effect of eggshell ash and boiler crust ash on the physical properties of concrete, and did not consider other factors that may affect the performance of the concrete. Finally, the study did not investigate the economic feasibility of using eggshell ash and boiler crust ash in concrete production.
Conclusion
In conclusion, this study has shown that the use of eggshell ash and boiler crust ash as substitutes for traditional concrete ingredients can have a significant impact on the physical properties of concrete. While there are several limitations to this study, the findings provide new insights for the construction industry about the potential for environmentally friendly materials that can be used to increase sustainability and efficiency in concrete production. Further research is needed to fully explore the potential of these materials and to determine their feasibility for use in construction projects.
Frequently Asked Questions (FAQs) about the Use of Eggshell Ash and Boiler Crust Ash in Concrete Production
Q: What is eggshell ash and boiler crust ash?
A: Eggshell ash is a waste product from the food processing industry, while boiler crust ash is a waste product from the power generation industry. Both materials are rich in calcium and silica, making them suitable for use as substitutes for traditional concrete ingredients.
Q: What are the benefits of using eggshell ash and boiler crust ash in concrete production?
A: The use of eggshell ash and boiler crust ash in concrete production can help reduce the environmental impact of the construction industry by reducing the amount of waste sent to landfills. Additionally, these materials can help improve the strength and durability of concrete, making them a more sustainable option.
Q: How do eggshell ash and boiler crust ash affect the physical properties of concrete?
A: The addition of eggshell ash and boiler crust ash to concrete can affect the physical properties of the material, including its compressive strength, tensile strength, and absorption value. The exact effect will depend on the proportion of the materials used and the type of concrete being produced.
Q: Can eggshell ash and boiler crust ash be used as substitutes for traditional concrete ingredients?
A: Yes, eggshell ash and boiler crust ash can be used as substitutes for traditional concrete ingredients, such as cement and sand. However, the proportion of these materials used will depend on the specific application and the desired properties of the concrete.
Q: What are the limitations of using eggshell ash and boiler crust ash in concrete production?
A: The use of eggshell ash and boiler crust ash in concrete production has several limitations, including the potential for reduced compressive strength and increased absorption value. Additionally, the long-term durability of concrete made with these materials has not been fully investigated.
Q: How can I obtain eggshell ash and boiler crust ash for use in concrete production?
A: Eggshell ash and boiler crust ash can be obtained from various sources, including food processing plants and power generation facilities. It is essential to ensure that the materials are properly processed and handled to avoid contamination and ensure their quality.
Q: What are the potential applications of concrete made with eggshell ash and boiler crust ash?
A: Concrete made with eggshell ash and boiler crust ash can be used for a variety of applications, including building construction, infrastructure development, and small projects. The use of these materials can help reduce the environmental impact of the construction industry while improving the strength and durability of concrete.
Q: How can I ensure the quality of concrete made with eggshell ash and boiler crust ash?
A: To ensure the quality of concrete made with eggshell ash and boiler crust ash, it is essential to follow proper mixing and testing procedures. This includes ensuring that the materials are properly processed and handled, and that the concrete is tested for its physical properties before being used in construction projects.
Q: What are the potential economic benefits of using eggshell ash and boiler crust ash in concrete production?
A: The use of eggshell ash and boiler crust ash in concrete production can help reduce the cost of traditional concrete ingredients, making it a more cost-effective option. Additionally, the use of these materials can help reduce the environmental impact of the construction industry, which can lead to cost savings and improved public health.
Q: How can I learn more about the use of eggshell ash and boiler crust ash in concrete production?
A: To learn more about the use of eggshell ash and boiler crust ash in concrete production, you can consult with industry experts, attend conferences and workshops, and read scientific literature on the topic. Additionally, you can contact local universities and research institutions to learn more about their research and development activities in this area.