Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture
In order to improve the durability of fly ash concrete, a series of experimental studies are carried out, where durability improving admixture is used to reduce drying shrinkage and improve freezing-thawing resistance. The effects of durability improving admixture, air content, water-binder ratio, a...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/818103 |
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| author | Hong-zhu Quan Hideo Kasami |
| author_facet | Hong-zhu Quan Hideo Kasami |
| author_sort | Hong-zhu Quan |
| collection | DOAJ |
| description | In order to improve the durability of fly ash concrete, a series of experimental studies are carried out, where durability improving admixture is used to reduce drying shrinkage and improve freezing-thawing resistance. The effects of durability improving admixture, air content, water-binder ratio, and fly ash replacement ratio on the performance of fly ash concrete are discussed in this paper. The results show that by using durability improving admixture in nonair-entraining fly ash concrete, the compressive strength of fly ash concrete can be improved by 10%–20%, and the drying shrinkage is reduced by 60%. Carbonation resistance of concrete is roughly proportional to water-cement ratio regardless of water-binder ratio and fly ash replacement ratio. For the specimens cured in air for 2 weeks, the freezing-thawing resistance is improved. In addition, by making use of durability improving admixture, it is easier to control the air content and make fly ash concrete into nonair-entraining one. The quality of fly ash concrete is thereby optimized. |
| format | Article |
| id | doaj-art-a2bbee29519147d1b9a0478c00e30f7a |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-a2bbee29519147d1b9a0478c00e30f7a2025-08-20T03:38:44ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/818103818103Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving AdmixtureHong-zhu Quan0Hideo Kasami1School of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, ChinaJapan Association for Building Research Promotion, Tokyo 108-0014, JapanIn order to improve the durability of fly ash concrete, a series of experimental studies are carried out, where durability improving admixture is used to reduce drying shrinkage and improve freezing-thawing resistance. The effects of durability improving admixture, air content, water-binder ratio, and fly ash replacement ratio on the performance of fly ash concrete are discussed in this paper. The results show that by using durability improving admixture in nonair-entraining fly ash concrete, the compressive strength of fly ash concrete can be improved by 10%–20%, and the drying shrinkage is reduced by 60%. Carbonation resistance of concrete is roughly proportional to water-cement ratio regardless of water-binder ratio and fly ash replacement ratio. For the specimens cured in air for 2 weeks, the freezing-thawing resistance is improved. In addition, by making use of durability improving admixture, it is easier to control the air content and make fly ash concrete into nonair-entraining one. The quality of fly ash concrete is thereby optimized.http://dx.doi.org/10.1155/2014/818103 |
| spellingShingle | Hong-zhu Quan Hideo Kasami Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture The Scientific World Journal |
| title | Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture |
| title_full | Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture |
| title_fullStr | Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture |
| title_full_unstemmed | Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture |
| title_short | Experimental Study on Durability Improvement of Fly Ash Concrete with Durability Improving Admixture |
| title_sort | experimental study on durability improvement of fly ash concrete with durability improving admixture |
| url | http://dx.doi.org/10.1155/2014/818103 |
| work_keys_str_mv | AT hongzhuquan experimentalstudyondurabilityimprovementofflyashconcretewithdurabilityimprovingadmixture AT hideokasami experimentalstudyondurabilityimprovementofflyashconcretewithdurabilityimprovingadmixture |