Repair and structural performance of initially cracked reinforced concrete Slabs
Crack is one of the most common defects observed in reinforced concrete slabs and beams. Major cracks in concrete structures may occur due to overloading, corrosion of reinforcement or differential settlement of support. To restore the structural capacity of the distressed elements, retrofitting and...
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| Format: | Article |
| Language: | English English |
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Elsevier
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/8487/ http://psasir.upm.edu.my/id/eprint/8487/1/Repair%20and%20structural%20performance%20of%20initially%20cracked%20reinforced%20concrete%20Slabs.pdf |
| _version_ | 1848840883584106496 |
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| author | Thanoon, Waleed Abdulmalik Jaafar, Mohd Saleh Abdul Kadir, Mohd Razali Noorzaei, Jamaloddin |
| author_facet | Thanoon, Waleed Abdulmalik Jaafar, Mohd Saleh Abdul Kadir, Mohd Razali Noorzaei, Jamaloddin |
| author_sort | Thanoon, Waleed Abdulmalik |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Crack is one of the most common defects observed in reinforced concrete slabs and beams. Major cracks in concrete structures may occur due to overloading, corrosion of reinforcement or differential settlement of support. To restore the structural capacity of the distressed elements, retrofitting and/or strengthening are needed. There are different techniques available for retrofitting and strengthening of different reinforced concrete structural elements reported in the literature. This paper investigates the structural behaviour of cracked reinforced concrete one-way slab, which is repaired using different techniques.
Five different techniques are used for the purpose of repair in the cracked concrete slab namely; cement grout, epoxy injection, ferrocement layer, carbon fibre strip and section enlargement. The slabs were loaded to failure stage and the structural response of each slab specimens have been predicted in terms of deflection, variation of strain in concrete and steel, collapse loads and the failure modes.
The efficiency of different repair and strengthening techniques and their effects on the structural behaviour of cracked one-way reinforced concrete slab had been analyzed. It was observed that the type of repair technique used will affect the load carrying capacity of the slab and will lead to a redistribution of the strains and hence stresses in both concrete and steel reinforcement. All repair techniques are found to be able to restore or enhance the structural capacity of cracked concrete slabs. |
| first_indexed | 2025-11-15T07:34:25Z |
| format | Article |
| id | upm-8487 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:34:25Z |
| publishDate | 2005 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-84872016-01-21T02:06:29Z http://psasir.upm.edu.my/id/eprint/8487/ Repair and structural performance of initially cracked reinforced concrete Slabs Thanoon, Waleed Abdulmalik Jaafar, Mohd Saleh Abdul Kadir, Mohd Razali Noorzaei, Jamaloddin Crack is one of the most common defects observed in reinforced concrete slabs and beams. Major cracks in concrete structures may occur due to overloading, corrosion of reinforcement or differential settlement of support. To restore the structural capacity of the distressed elements, retrofitting and/or strengthening are needed. There are different techniques available for retrofitting and strengthening of different reinforced concrete structural elements reported in the literature. This paper investigates the structural behaviour of cracked reinforced concrete one-way slab, which is repaired using different techniques. Five different techniques are used for the purpose of repair in the cracked concrete slab namely; cement grout, epoxy injection, ferrocement layer, carbon fibre strip and section enlargement. The slabs were loaded to failure stage and the structural response of each slab specimens have been predicted in terms of deflection, variation of strain in concrete and steel, collapse loads and the failure modes. The efficiency of different repair and strengthening techniques and their effects on the structural behaviour of cracked one-way reinforced concrete slab had been analyzed. It was observed that the type of repair technique used will affect the load carrying capacity of the slab and will lead to a redistribution of the strains and hence stresses in both concrete and steel reinforcement. All repair techniques are found to be able to restore or enhance the structural capacity of cracked concrete slabs. Elsevier 2005-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/8487/1/Repair%20and%20structural%20performance%20of%20initially%20cracked%20reinforced%20concrete%20Slabs.pdf Thanoon, Waleed Abdulmalik and Jaafar, Mohd Saleh and Abdul Kadir, Mohd Razali and Noorzaei, Jamaloddin (2005) Repair and structural performance of initially cracked reinforced concrete Slabs. Construction and Building Materials, 19 (8). pp. 595-603. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2005.01.011 10.1016/j.conbuildmat.2005.01.011 English |
| spellingShingle | Thanoon, Waleed Abdulmalik Jaafar, Mohd Saleh Abdul Kadir, Mohd Razali Noorzaei, Jamaloddin Repair and structural performance of initially cracked reinforced concrete Slabs |
| title | Repair and structural performance of initially cracked reinforced concrete Slabs |
| title_full | Repair and structural performance of initially cracked reinforced concrete Slabs |
| title_fullStr | Repair and structural performance of initially cracked reinforced concrete Slabs |
| title_full_unstemmed | Repair and structural performance of initially cracked reinforced concrete Slabs |
| title_short | Repair and structural performance of initially cracked reinforced concrete Slabs |
| title_sort | repair and structural performance of initially cracked reinforced concrete slabs |
| url | http://psasir.upm.edu.my/id/eprint/8487/ http://psasir.upm.edu.my/id/eprint/8487/ http://psasir.upm.edu.my/id/eprint/8487/ http://psasir.upm.edu.my/id/eprint/8487/1/Repair%20and%20structural%20performance%20of%20initially%20cracked%20reinforced%20concrete%20Slabs.pdf |