Assessment of iron tailings as replacement for fine aggregate in engineering application

Ayodele Owolabı

Makale detayları

Assessment of iron tailings as replacement for fine aggregate in engineering application

Yazarlar:

Ayodele Owolabı

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Civil Engineering

Dergi:

Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 1, pp.20-26

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001287247

pISSN:

2458-973X

Anahtar kelimeler:

Özet:

 This study evaluated the suitability of iron tailings as fine aggregate replacements for engineering applications. This is necessary to find economic usage for the enormous amount of waste from Itakpe mines. The physical properties of specific gravity, bulk density, moisture content, particle size, fineness modulus, and mechanical properties in terms of compressive strength, compaction factor, flexural strength, and relative density of the concrete made with iron tailings were determined. World Health Organization WHO standard methods for examining water and wastewater were used to analyze water used for curing the concrete cubes and beams to ascertain toxicity. The result shows the workability of concrete made with 50 iron tailings within the standard limit. The compressive strength at 28 days for 0 to 100 percentage replacement increases from 10.1Nmm2 to 15.3Nmm2. Therefore, replacing sand with the iron filling will improve the compressive strength of any concrete. The flexural strength analysis shows that the iron tailings concrete beam increases the flexural strength from 15Nmm2 to 16.9Nmm2 from 0 to 100 at 28-day curing. There is also a linear relationship between the flexural strength and the density of the iron tailing concrete. The pH and Alkalinity tests of the water used to cure the iron tailing concrete indicate that the curing waters alkalinity was high 20.883 to 40.75 with a pH range of 12.1-12.4. This shows that using iron tailing will not harm the durability of the resulting concrete. The iron tailings are suitable for acceptable aggregate replacement up to 75 without negatively altering the mechanical properties of such concrete.

 This study evaluated the suitability of iron tailings as fine aggregate replacements for engineering applications. This is necessary to find economic usage for the enormous amount of waste from Itakpe mines. The physical properties of specific gravity, bulk density, moisture content, particle size, fineness modulus, and mechanical properties in terms of compressive strength, compaction factor, flexural strength, and relative density of the concrete made with iron tailings were determined. World Health Organization WHO standard methods for examining water and wastewater were used to analyze water used for curing the concrete cubes and beams to ascertain toxicity. The result shows the workability of concrete made with 50 iron tailings within the standard limit. The compressive strength at 28 days for 0 to 100 percentage replacement increases from 10.1Nmm2 to 15.3Nmm2. Therefore, replacing sand with the iron filling will improve the compressive strength of any concrete. The flexural strength analysis shows that the iron tailings concrete beam increases the flexural strength from 15Nmm2 to 16.9Nmm2 from 0 to 100 at 28-day curing. There is also a linear relationship between the flexural strength and the density of the iron tailing concrete. The pH and Alkalinity tests of the water used to cure the iron tailing concrete indicate that the curing waters alkalinity was high 20.883 to 40.75 with a pH range of 12.1-12.4. This shows that using iron tailing will not harm the durability of the resulting concrete. The iron tailings are suitable for acceptable aggregate replacement up to 75 without negatively altering the mechanical properties of such concrete.

 This study evaluated the suitability of iron tailings as fine aggregate replacements for engineering applications. This is necessary to find economic usage for the enormous amount of waste from Itakpe mines. The physical properties of specific gravity, bulk density, moisture content, particle size, fineness modulus, and mechanical properties in terms of compressive strength, compaction factor, flexural strength, and relative density of the concrete made with iron tailings were determined. World Health Organization WHO standard methods for examining water and wastewater were used to analyze water used for curing the concrete cubes and beams to ascertain toxicity. The result shows the workability of concrete made with 50 iron tailings within the standard limit. The compressive strength at 28 days for 0 to 100 percentage replacement increases from 10.1Nmm2 to 15.3Nmm2. Therefore, replacing sand with the iron filling will improve the compressive strength of any concrete. The flexural strength analysis shows that the iron tailings concrete beam increases the flexural strength from 15Nmm2 to 16.9Nmm2 from 0 to 100 at 28-day curing. There is also a linear relationship between the flexural strength and the density of the iron tailing concrete. The pH and Alkalinity tests of the water used to cure the iron tailing concrete indicate that the curing waters alkalinity was high 20.883 to 40.75 with a pH range of 12.1-12.4. This shows that using iron tailing will not harm the durability of the resulting concrete. The iron tailings are suitable for acceptable aggregate replacement up to 75 without negatively altering the mechanical properties of such concrete.

 This study evaluated the suitability of iron tailings as fine aggregate replacements for engineering applications. This is necessary to find economic usage for the enormous amount of waste from Itakpe mines. The physical properties of specific gravity, bulk density, moisture content, particle size, fineness modulus, and mechanical properties in terms of compressive strength, compaction factor, flexural strength, and relative density of the concrete made with iron tailings were determined. World Health Organization WHO standard methods for examining water and wastewater were used to analyze water used for curing the concrete cubes and beams to ascertain toxicity. The result shows the workability of concrete made with 50 iron tailings within the standard limit. The compressive strength at 28 days for 0 to 100 percentage replacement increases from 10.1Nmm2 to 15.3Nmm2. Therefore, replacing sand with the iron filling will improve the compressive strength of any concrete. The flexural strength analysis shows that the iron tailings concrete beam increases the flexural strength from 15Nmm2 to 16.9Nmm2 from 0 to 100 at 28-day curing. There is also a linear relationship between the flexural strength and the density of the iron tailing concrete. The pH and Alkalinity tests of the water used to cure the iron tailing concrete indicate that the curing waters alkalinity was high 20.883 to 40.75 with a pH range of 12.1-12.4. This shows that using iron tailing will not harm the durability of the resulting concrete. The iron tailings are suitable for acceptable aggregate replacement up to 75 without negatively altering the mechanical properties of such concrete.

Makale detayları

Assessment of iron tailings as replacement for fine aggregate in engineering application

Yazarlar:

Ayodele Owolabı

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Civil Engineering

Dergi:

Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 1, pp.20-26

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001287247

pISSN:

2458-973X

Iron tailings

fine aggregates

compressive strength

flexural strength

engineering applications

Sayı

Makale detayları

Assessment of iron tailings as replacement for fine aggregate in engineering application

Yazarlar: Ayodele Owolabı

Yayıncı: Yildiz Technical University

Ana Başlıklar: Civil Engineering

Dergi: Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 1, pp.20-26

Belge Tipi: Makale

Yayın Tarihi: 3/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001287247

pISSN: 2458-973X

Iron tailings

fine aggregates

compressive strength

flexural strength

engineering applications

Sayı

Yazarlar:

Ayodele Owolabı

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Civil Engineering

Dergi:

Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 1, pp.20-26

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001287247

pISSN:

2458-973X