Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns
The structural properties of iron tailings must be verified for them to be used in reinforced concrete structures. In this study, finely ground iron tailings powder was used as an admixture, and iron tailings gravel and iron tailings sand were used as the coarse and fine aggregates, respectively, to...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523000608 |
| _version_ | 1797798954211999744 |
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| author | Xinxin Ma Jianheng Sun Fengshuang Zhang Jing Yuan Zhiliang Meng |
| author_facet | Xinxin Ma Jianheng Sun Fengshuang Zhang Jing Yuan Zhiliang Meng |
| author_sort | Xinxin Ma |
| collection | DOAJ |
| description | The structural properties of iron tailings must be verified for them to be used in reinforced concrete structures. In this study, finely ground iron tailings powder was used as an admixture, and iron tailings gravel and iron tailings sand were used as the coarse and fine aggregates, respectively, to prepare full iron tailings concrete (FITC), which was compared to conventional concrete (CC). Eight concrete column specimens comprising different raw materials were cast. Three slender and three short reinforced FITC columns were designed, tested under axial compression, and compared to the experimental results of the CC columns. The load-bearing and deformation capacities of FITC columns were investigated for the first time. The results indicated that the incorporation of iron tailings reduced the strength and modulus of elasticity of FITC by 7.1–8.8 % and 18.2–19.1 %, respectively. The bearing capacity of three FITC slender columns was 4.6–8.7 % less than that of the CC slender column, and the bearing capacity of three FITC short columns was 10.0–16.7 % less than that of the CC short column. The bearing capacity calculations of the FITC columns indicate that they are safe as per existing Chinese and ACI standards. However, their ductility and stiffness are inferior to those of CC columns. A calculation model for the axial compressive load capacity of FITC columns, which agreed with the test results, was selected. |
| first_indexed | 2024-03-13T04:12:40Z |
| format | Article |
| id | doaj.art-92ae92f73ba34520aa9b671beabfee8f |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:40Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-92ae92f73ba34520aa9b671beabfee8f2023-06-21T06:53:37ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01881Experimental studies and analysis on axial compressive properties of full iron tailings concrete columnsXinxin Ma0Jianheng Sun1Fengshuang Zhang2Jing Yuan3Zhiliang Meng4Department of Civil Engineering, Hebei Agricultural University, Baoding 071001, ChinaCorresponding author.; Department of Civil Engineering, Hebei Agricultural University, Baoding 071001, ChinaDepartment of Civil Engineering, Hebei Agricultural University, Baoding 071001, ChinaDepartment of Civil Engineering, Hebei Agricultural University, Baoding 071001, ChinaDepartment of Civil Engineering, Hebei Agricultural University, Baoding 071001, ChinaThe structural properties of iron tailings must be verified for them to be used in reinforced concrete structures. In this study, finely ground iron tailings powder was used as an admixture, and iron tailings gravel and iron tailings sand were used as the coarse and fine aggregates, respectively, to prepare full iron tailings concrete (FITC), which was compared to conventional concrete (CC). Eight concrete column specimens comprising different raw materials were cast. Three slender and three short reinforced FITC columns were designed, tested under axial compression, and compared to the experimental results of the CC columns. The load-bearing and deformation capacities of FITC columns were investigated for the first time. The results indicated that the incorporation of iron tailings reduced the strength and modulus of elasticity of FITC by 7.1–8.8 % and 18.2–19.1 %, respectively. The bearing capacity of three FITC slender columns was 4.6–8.7 % less than that of the CC slender column, and the bearing capacity of three FITC short columns was 10.0–16.7 % less than that of the CC short column. The bearing capacity calculations of the FITC columns indicate that they are safe as per existing Chinese and ACI standards. However, their ductility and stiffness are inferior to those of CC columns. A calculation model for the axial compressive load capacity of FITC columns, which agreed with the test results, was selected.http://www.sciencedirect.com/science/article/pii/S2214509523000608Full iron tailings concrete columnAxial compressive propertiesBearing capacityDuctilityCalculation model |
| spellingShingle | Xinxin Ma Jianheng Sun Fengshuang Zhang Jing Yuan Zhiliang Meng Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns Case Studies in Construction Materials Full iron tailings concrete column Axial compressive properties Bearing capacity Ductility Calculation model |
| title | Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns |
| title_full | Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns |
| title_fullStr | Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns |
| title_full_unstemmed | Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns |
| title_short | Experimental studies and analysis on axial compressive properties of full iron tailings concrete columns |
| title_sort | experimental studies and analysis on axial compressive properties of full iron tailings concrete columns |
| topic | Full iron tailings concrete column Axial compressive properties Bearing capacity Ductility Calculation model |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523000608 |
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