DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS
The concrete industry in Egypt has incorporated Blast Furnace Slag Cement Concrete, BFSCC, as a replacement to Ordinary Portland Cement Concrete, OPCC, in favor to resist harsh conditions related to water hydraulic structures. The practice cannot follow the strict requirements of curing according to...
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| Format: | Article |
| Language: | Arabic |
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Assiut University, Faculty of Engineering
2022-09-01
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| Series: | JES: Journal of Engineering Sciences |
| Subjects: | |
| Online Access: | https://jesaun.journals.ekb.eg/article_254721_e5aa5cb66dc4c5cfbffe4c6ea092c167.pdf |
| _version_ | 1827142655733137408 |
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| author | M. Anwar Dina Emarah |
| author_facet | M. Anwar Dina Emarah |
| author_sort | M. Anwar |
| collection | DOAJ |
| description | The concrete industry in Egypt has incorporated Blast Furnace Slag Cement Concrete, BFSCC, as a replacement to Ordinary Portland Cement Concrete, OPCC, in favor to resist harsh conditions related to water hydraulic structures. The practice cannot follow the strict requirements of curing according to the Egyptian code of practice (ECP), where in such cases it was necessary to evaluate the mechanical behavior of such concretes experimentally with practical curing methodologies. Two different methods were used to cure concrete specimens; IC samples were immersed in water until testing time, and secondly, FC samples were kept at a certain relative humidity and temperature and sprinkled with water every twelve hours for one week, simulating practical field curing conditions. The slump, flow, air content, and unit weight of fresh concrete were measured. Compressive strength, dynamic elastic modulus, and pulse velocity are investigated for hardened concrete. The main characteristics of the concrete pore structure were determined. The chloride content of the concrete was evaluated via titration analysis after 1, 3, and 5 months’ immersion in sodium chloride solution. Moreover, the concrete specimens were immersed in a 10% sodium sulfate solution for 360 days to test their sulfate resistance. The carbonation depths of the concrete sample were measured at 1, 2, 4, 8, and 12 weeks. The results indicated good agreement between the destructive and non-destructive tests. In addition, as the curing methods and cement type were changed, the pore structure characteristics, sulfate resistance, carbonations, chloride penetration, and diffusion coefficients were significantly influenced. |
| first_indexed | 2024-04-11T01:18:59Z |
| format | Article |
| id | doaj.art-f3ce12be208d44fb89b4f66f5be448ef |
| institution | Directory Open Access Journal |
| issn | 1687-0530 2356-8550 |
| language | Arabic |
| last_indexed | 2025-03-20T19:30:23Z |
| publishDate | 2022-09-01 |
| publisher | Assiut University, Faculty of Engineering |
| record_format | Article |
| series | JES: Journal of Engineering Sciences |
| spelling | doaj.art-f3ce12be208d44fb89b4f66f5be448ef2024-08-21T12:01:12ZaraAssiut University, Faculty of EngineeringJES: Journal of Engineering Sciences1687-05302356-85502022-09-0150527629110.21608/jesaun.2022.140887.1142254721DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODSM. Anwar0Dina Emarah1Construction Research Institute, National Water Research Center,Delta-Barrage, 13621Construction Research Institute, NWRC, Delta-Barrage, 13621, EgyptThe concrete industry in Egypt has incorporated Blast Furnace Slag Cement Concrete, BFSCC, as a replacement to Ordinary Portland Cement Concrete, OPCC, in favor to resist harsh conditions related to water hydraulic structures. The practice cannot follow the strict requirements of curing according to the Egyptian code of practice (ECP), where in such cases it was necessary to evaluate the mechanical behavior of such concretes experimentally with practical curing methodologies. Two different methods were used to cure concrete specimens; IC samples were immersed in water until testing time, and secondly, FC samples were kept at a certain relative humidity and temperature and sprinkled with water every twelve hours for one week, simulating practical field curing conditions. The slump, flow, air content, and unit weight of fresh concrete were measured. Compressive strength, dynamic elastic modulus, and pulse velocity are investigated for hardened concrete. The main characteristics of the concrete pore structure were determined. The chloride content of the concrete was evaluated via titration analysis after 1, 3, and 5 months’ immersion in sodium chloride solution. Moreover, the concrete specimens were immersed in a 10% sodium sulfate solution for 360 days to test their sulfate resistance. The carbonation depths of the concrete sample were measured at 1, 2, 4, 8, and 12 weeks. The results indicated good agreement between the destructive and non-destructive tests. In addition, as the curing methods and cement type were changed, the pore structure characteristics, sulfate resistance, carbonations, chloride penetration, and diffusion coefficients were significantly influenced.https://jesaun.journals.ekb.eg/article_254721_e5aa5cb66dc4c5cfbffe4c6ea092c167.pdfcement typeconcretecuring techniquespore structurechloride |
| spellingShingle | M. Anwar Dina Emarah DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS JES: Journal of Engineering Sciences cement type concrete curing techniques pore structure chloride |
| title | DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS |
| title_full | DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS |
| title_fullStr | DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS |
| title_full_unstemmed | DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS |
| title_short | DURABILITY OF BLAST-FURNACE SLAG CEMENT CONCRETE WITH DIFFERENT CURING METHODS |
| title_sort | durability of blast furnace slag cement concrete with different curing methods |
| topic | cement type concrete curing techniques pore structure chloride |
| url | https://jesaun.journals.ekb.eg/article_254721_e5aa5cb66dc4c5cfbffe4c6ea092c167.pdf |
| work_keys_str_mv | AT manwar durabilityofblastfurnaceslagcementconcretewithdifferentcuringmethods AT dinaemarah durabilityofblastfurnaceslagcementconcretewithdifferentcuringmethods |