Performance of High Volume Fly Ash Concrete in Structural Applications
Application of high volume fly ash concrete is still not advocated by construction fraternity due to lack of standardisation. In India, fly ash as a pozzolanic material can be used in manufacturing of Portland Pozzolana cement and composite cement with a maximum limit of 35%. Present study had been...
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University Amar Telidji of Laghouat
2023-03-01
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| Series: | Journal of Building Materials and Structures |
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| Online Access: | http://journals.lagh-univ.dz/index.php/jbms/article/view/2864 |
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| author | Puneet Kaura P N Ojha Brijesh Singh |
| author_facet | Puneet Kaura P N Ojha Brijesh Singh |
| author_sort | Puneet Kaura |
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Application of high volume fly ash concrete is still not advocated by construction fraternity due to lack of standardisation. In India, fly ash as a pozzolanic material can be used in manufacturing of Portland Pozzolana cement and composite cement with a maximum limit of 35%. Present study had been carried out at various percentages of fly ash and a detailed mechanical and durability study was conducted. In this paper, concrete mixes were designed at two water binder ratio with 30%, 35%, 40% and 50% fly ash content. Mechanical behaviour of concrete was studied through tests like compressive strength (at age of 1, 3, 7, 28, 56 and 90 days) and flexure strength (at an age of 7, 28 and 90 days). Durability aspect of high volume fly ash concrete mixes were determined through various test like RCPT, non-steady state chloride migration, bulk conductivity, accelerated carbonation etc. and comparison is made with control mixes (i.e. concrete made with OPC). Alkali silica reactivity (ASR) study was also carried out at 30%, 35%, 40% and 50% fly ash content using reactive aggregates. It was quite evident from test results that strength characteristics of high volume flyash concrete mix made with 50% flyash content was remarkably lower than that of all other concrete mixtures. High volume flyash concrete mix designed at 40% flyash content had shown exemplarily performance in comparison to other high volume flyash concrete mixes as well as control mixes. Flyash content was found to most significant parameter influencing rate of carbonation.
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| format | Article |
| id | doaj-art-a6e56232aa9a4f3bb7cda674a59857d5 |
| institution | Kabale University |
| issn | 2353-0057 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | University Amar Telidji of Laghouat |
| record_format | Article |
| series | Journal of Building Materials and Structures |
| spelling | doaj-art-a6e56232aa9a4f3bb7cda674a59857d52025-01-27T21:00:45ZengUniversity Amar Telidji of LaghouatJournal of Building Materials and Structures2353-00572023-03-0110110.34118/jbms.v10i1.2864Performance of High Volume Fly Ash Concrete in Structural ApplicationsPuneet Kaura0P N Ojha1Brijesh Singh2Manager, Center for Construction Development and Research, National Council for Cement and Building Materials, India.Joint Director and Head, Center for Construction Development and Research, National Council for Cement and Building Materials, India.Group Manager, Center for Construction Development and Research, National Council for Cement and Building Materials, India Application of high volume fly ash concrete is still not advocated by construction fraternity due to lack of standardisation. In India, fly ash as a pozzolanic material can be used in manufacturing of Portland Pozzolana cement and composite cement with a maximum limit of 35%. Present study had been carried out at various percentages of fly ash and a detailed mechanical and durability study was conducted. In this paper, concrete mixes were designed at two water binder ratio with 30%, 35%, 40% and 50% fly ash content. Mechanical behaviour of concrete was studied through tests like compressive strength (at age of 1, 3, 7, 28, 56 and 90 days) and flexure strength (at an age of 7, 28 and 90 days). Durability aspect of high volume fly ash concrete mixes were determined through various test like RCPT, non-steady state chloride migration, bulk conductivity, accelerated carbonation etc. and comparison is made with control mixes (i.e. concrete made with OPC). Alkali silica reactivity (ASR) study was also carried out at 30%, 35%, 40% and 50% fly ash content using reactive aggregates. It was quite evident from test results that strength characteristics of high volume flyash concrete mix made with 50% flyash content was remarkably lower than that of all other concrete mixtures. High volume flyash concrete mix designed at 40% flyash content had shown exemplarily performance in comparison to other high volume flyash concrete mixes as well as control mixes. Flyash content was found to most significant parameter influencing rate of carbonation. http://journals.lagh-univ.dz/index.php/jbms/article/view/2864High volume fly ash concrete mixesRCPTnon-steady state chloride migrationbulk conductivityaccelerated carbonationAlkali silica reactivity (ASR) |
| spellingShingle | Puneet Kaura P N Ojha Brijesh Singh Performance of High Volume Fly Ash Concrete in Structural Applications Journal of Building Materials and Structures High volume fly ash concrete mixes RCPT non-steady state chloride migration bulk conductivity accelerated carbonation Alkali silica reactivity (ASR) |
| title | Performance of High Volume Fly Ash Concrete in Structural Applications |
| title_full | Performance of High Volume Fly Ash Concrete in Structural Applications |
| title_fullStr | Performance of High Volume Fly Ash Concrete in Structural Applications |
| title_full_unstemmed | Performance of High Volume Fly Ash Concrete in Structural Applications |
| title_short | Performance of High Volume Fly Ash Concrete in Structural Applications |
| title_sort | performance of high volume fly ash concrete in structural applications |
| topic | High volume fly ash concrete mixes RCPT non-steady state chloride migration bulk conductivity accelerated carbonation Alkali silica reactivity (ASR) |
| url | http://journals.lagh-univ.dz/index.php/jbms/article/view/2864 |
| work_keys_str_mv | AT puneetkaura performanceofhighvolumeflyashconcreteinstructuralapplications AT pnojha performanceofhighvolumeflyashconcreteinstructuralapplications AT brijeshsingh performanceofhighvolumeflyashconcreteinstructuralapplications |