Study Of Free Compressive Strength Of Clay Stability With Stabilizing Agents Of Glass Powder And Cement

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Introduction

Soil stability is a crucial factor in various construction projects. Clay land, known for its easy nature to expand and shrink, is often an obstacle in development. To overcome this, the technique of soil stabilization with the addition of chemicals is an effective solution. This study explores the use of glass and cement powder as material stabilization in clay soils.

Background

Clay soils are widely used in construction projects due to their availability and low cost. However, their instability can lead to various problems such as settlement, cracking, and collapse of structures. To overcome these issues, soil stabilization techniques are employed to increase the strength and stability of clay soils. One of the most effective methods of soil stabilization is the addition of chemicals such as cement and glass powder.

Materials and Methods

This study focuses on clay soils originating from the field, with the aim of increasing soil strength through the addition of 2% cement (PC) and variations of glass powder (SK). The study also wants to know the effect of curing time on the value of land-free compressive strength that has been stabilized.

The materials used in this study include clay soil samples, cement powder, and glass powder. The clay soil samples were collected from the field and characterized in terms of their physical and mechanical properties. The cement powder and glass powder were used as stabilizing agents to increase the strength and stability of the clay soils.

The methods used in this study include soil sampling, laboratory testing, and data analysis. The soil samples were collected from the field and transported to the laboratory for testing. The laboratory tests included moisture content, specific gravity, liquid limit, plasticity index, and free compressive strength.

Results

The results of this study showed that the original soil had the following characteristics:

  • Moisture content: 12.53%
  • Specific gravity: 2.65
  • Liquid limit: 48.90%
  • Plasticity index: 33.74%
  • Free compressive strength: 1.40 kg/cm²

Based on the classification of USCS, this land is categorized as clay soil (CL), and based on AASHTO classification, including in the A-7-6 type.

After being tested, a mixture of 2% PC + 9% SK has proven to be the most effective combination in increasing soil compressive strength. The value of the compressive strength of the mixture with a time of Rp 14 days (2.79 kg/cm²) is higher compared to the time of 1 day (2.72 kg/cm²). This shows that the time of the affair has an important role in increasing soil strength.

Discussion

The results of this study show that the addition of glass powder and cement powder can increase the strength and stability of clay soils. The mixture of 2% PC + 9% SK has proven to be the most effective combination in increasing soil compressive strength. The time of the affair has an important role in increasing soil strength.

The use of glass powder in higher amounts can reduce the carrying capacity, but it remains above the value of the original soil compressive strength. This shows that glass powder can increase clay stability.

In terms of soil classification, a mixture of 2% PC + 9% SK is classified in the type of CL soil according to USCS and A-6 according to AASHTO. This shows that the addition of glass and cement powder has increased the characteristics of clay soils, making it more stable and suitable for various construction needs.

Conclusion

This study provides strong evidence that glass powder can be an alternative material for soil stabilization that is environmentally friendly and effective. By utilizing abundant glass powder waste, this research opens new opportunities in developing sustainable and efficient construction technology. The results of this study can also be a reference in determining the optimal proportion of glass and cement powder for various types of clay soils, so as to increase the resistance and carrying capacity of the soil in various construction projects.

Recommendations

Based on the results of this study, the following recommendations are made:

  • The use of glass powder and cement powder as stabilizing agents in clay soils can increase the strength and stability of the soil.
  • The mixture of 2% PC + 9% SK is the most effective combination in increasing soil compressive strength.
  • The time of the affair has an important role in increasing soil strength.
  • The use of glass powder in higher amounts can reduce the carrying capacity, but it remains above the value of the original soil compressive strength.
  • The addition of glass and cement powder has increased the characteristics of clay soils, making it more stable and suitable for various construction needs.

Future Research Directions

This study provides a foundation for further research in the field of soil stabilization using glass powder and cement powder. Some potential future research directions include:

  • Investigating the effect of different types of glass powder on soil stability.
  • Studying the effect of different curing times on soil strength.
  • Investigating the use of glass powder and cement powder in combination with other stabilizing agents.
  • Developing new methods for determining the optimal proportion of glass and cement powder for various types of clay soils.

Limitations

This study has some limitations that should be noted:

  • The study was conducted on a limited number of soil samples.
  • The study only investigated the effect of glass powder and cement powder on soil stability.
  • The study did not investigate the effect of other stabilizing agents on soil stability.

Conclusion

Q: What is the main objective of this study?

A: The main objective of this study is to investigate the effect of glass powder and cement powder on the free compressive strength of clay soils.

Q: What are the benefits of using glass powder and cement powder as stabilizing agents in clay soils?

A: The use of glass powder and cement powder as stabilizing agents in clay soils can increase the strength and stability of the soil, making it more suitable for various construction needs.

Q: What is the most effective combination of glass powder and cement powder for increasing soil compressive strength?

A: The mixture of 2% PC + 9% SK has proven to be the most effective combination in increasing soil compressive strength.

Q: How does the time of the affair affect the soil strength?

A: The time of the affair has an important role in increasing soil strength. The value of the compressive strength of the mixture with a time of Rp 14 days (2.79 kg/cm²) is higher compared to the time of 1 day (2.72 kg/cm²).

Q: Can the use of glass powder in higher amounts reduce the carrying capacity of the soil?

A: Yes, the use of glass powder in higher amounts can reduce the carrying capacity of the soil, but it remains above the value of the original soil compressive strength.

Q: What are the limitations of this study?

A: The study was conducted on a limited number of soil samples, and the study only investigated the effect of glass powder and cement powder on soil stability.

Q: What are the future research directions for this study?

A: Some potential future research directions include investigating the effect of different types of glass powder on soil stability, studying the effect of different curing times on soil strength, and investigating the use of glass powder and cement powder in combination with other stabilizing agents.

Q: What are the practical applications of this study?

A: The results of this study can be used to determine the optimal proportion of glass and cement powder for various types of clay soils, so as to increase the resistance and carrying capacity of the soil in various construction projects.

Q: Is this study environmentally friendly?

A: Yes, this study provides strong evidence that glass powder can be an alternative material for soil stabilization that is environmentally friendly and effective.

Q: Can this study be used as a reference for other construction projects?

A: Yes, the results of this study can be used as a reference for other construction projects that involve the use of clay soils.

Q: What are the potential risks associated with the use of glass powder and cement powder as stabilizing agents in clay soils?

A: The potential risks associated with the use of glass powder and cement powder as stabilizing agents in clay soils include the reduction of the carrying capacity of the soil, and the potential for the soil to become unstable.

Q: How can the results of this study be applied in real-world construction projects?

A: The results of this study can be applied in real-world construction projects by using the optimal proportion of glass and cement powder for various types of clay soils, so as to increase the resistance and carrying capacity of the soil.