The Effect of Steel Slag as a Rough Aggregate on Compressive Strength and Bending in Reinforced Concrete Compared to Normal Concrete

Oct 13, 2025 by leolavanderia.com.br 88 views

The Effect of Steel Slag as a Rough Aggregate on Compressive Strength and Bending in Reinforced Concrete Compared to Normal Concrete

The construction industry is rapidly evolving, and the demand for high-quality building materials is increasing to meet the needs of modern infrastructure. Concrete, a fundamental material in construction, continues to experience innovation and exploration for alternative materials that are more efficient and environmentally friendly. One of the promising efforts is the use of industrial waste as a concrete mixture, such as the use of steel slag (steel waste) as a rough aggregate. This study investigates the effect of using steel slag from PT. Growth Sumatra Industry as a substitute for rough aggregate in reinforced concrete.

Concrete is a composite material made from cement, water, and aggregate. The aggregate is typically gravel or crushed stone, which provides strength and stability to the concrete. However, the use of natural aggregates has several drawbacks, including high costs, limited availability, and environmental concerns. Industrial waste, such as steel slag, has been explored as a potential substitute for natural aggregates. Steel slag is a by-product of the steel production process, and it has been shown to have potential as a construction material.

This study uses variations in gravel substitution with steel slag of 0%, 15%, and 25% to be tested through slump test, compressive strength, and flexural strength of concrete. The slump test is used to measure the workability of concrete, while compressive strength and flexural strength are used to measure the strength of concrete. The study uses a total of 36 concrete specimens, with 12 specimens for each variation.

The results of the study show that the use of steel slag has a positive impact on concrete strength. The compressive strength of concrete reaches the optimal value in the 25% gravel substitution variation with steel slag, which is 40,481 MPa. Meanwhile, the optimal bending capacity is obtained in the same variation, reaching 19,592 N/mm2. These results indicate that the use of steel slag can improve the strength of concrete.

The use of steel slag as a rough aggregate in concrete has several benefits, including reducing the amount of industrial waste and improving the quality of concrete. The study shows that the use of steel slag can increase the compressive strength and bending capacity of concrete. However, the study also shows that the use of steel slag can affect the workability of concrete, which is a critical property of concrete.

This study opens great opportunities to utilize steel slag as an alternative material in a concrete mixture. The use of steel slag not only provides solutions to overcome industrial waste problems but can also improve the quality of concrete by increasing compressive and flexible strength. However, further research is needed to understand the effect of steel slag on other concrete properties, such as resistance to abrasion, freeze-thaw, and its effect on the environment.

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

Further research is needed to understand the effect of steel slag on other concrete properties.
The use of steel slag as a rough aggregate in concrete should be explored in more detail to determine its potential benefits and limitations.
The development of new concrete mixtures that incorporate steel slag should be encouraged to improve the quality of concrete and reduce the amount of industrial waste.

The use of steel slag as a rough aggregate in concrete has several potential applications, including:

Improving the strength and durability of concrete
Reducing the amount of industrial waste
Developing new concrete mixtures that incorporate steel slag
Exploring the potential benefits and limitations of using steel slag as a rough aggregate in concrete

This study has several limitations, including:

The study only investigated the effect of steel slag on compressive strength and bending capacity of concrete.
The study did not investigate the effect of steel slag on other concrete properties, such as resistance to abrasion, freeze-thaw, and its effect on the environment.
The study only used a limited number of concrete specimens.

In conclusion, this study shows that the use of steel slag as a rough aggregate in concrete can improve the strength and durability of concrete. However, further research is needed to understand the effect of steel slag on other concrete properties and to determine its potential benefits and limitations. The development of new concrete mixtures that incorporate steel slag should be encouraged to improve the quality of concrete and reduce the amount of industrial waste.
Frequently Asked Questions (FAQs) about the Use of Steel Slag as a Rough Aggregate in Concrete

A: Steel slag is a by-product of the steel production process. It is a type of industrial waste that is generated during the production of steel.

A: The use of steel slag as a rough aggregate in concrete has several benefits, including:

Improving the strength and durability of concrete
Reducing the amount of industrial waste
Reducing the cost of concrete production
Providing a sustainable solution for waste management

A: The use of steel slag as a rough aggregate in concrete can affect the workability of concrete. Steel slag can make concrete more difficult to mix and place, which can affect the workability of the concrete.

A: The potential applications of steel slag as a rough aggregate in concrete include:

Building construction
Road construction
Bridge construction
Airport construction
Other infrastructure projects

A: The limitations of using steel slag as a rough aggregate in concrete include:

The need for further research to understand the effect of steel slag on other concrete properties
The potential for steel slag to affect the workability of concrete
The need for specialized equipment and techniques to handle and process steel slag

A: Steel slag can be used as a rough aggregate in concrete by substituting it for natural aggregates, such as gravel or crushed stone. The amount of steel slag used can vary depending on the specific application and the desired properties of the concrete.

A: The use of steel slag as a rough aggregate in concrete has several environmental benefits, including:

Reducing the amount of industrial waste
Reducing the need for natural aggregates
Reducing the carbon footprint of concrete production

A: Steel slag can be processed and prepared for use as a rough aggregate in concrete by crushing and grinding it into a suitable size and shape. The steel slag can also be treated with chemicals or other processes to improve its properties and make it more suitable for use in concrete.

A: The potential risks and challenges associated with using steel slag as a rough aggregate in concrete include:

The potential for steel slag to affect the workability of concrete
The need for specialized equipment and techniques to handle and process steel slag
The potential for steel slag to have negative environmental impacts if not handled and processed properly

A: The use of steel slag as a rough aggregate in concrete can be optimized by:

Conducting further research to understand the effect of steel slag on other concrete properties
Developing new concrete mixtures that incorporate steel slag
Improving the processing and preparation of steel slag for use in concrete
Developing specialized equipment and techniques to handle and process steel slag.