Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance
Silica fume is a common mineral admixture used in HSC and HPC, but being its high price and shrinkage in concrete, its usage is under restrictions. As a new mineral admixture, metakaolin gets more and more attention. In order to compare the difference between silica fume and metakaolin, the effects...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20166707010 |
| _version_ | 1819172997200609280 |
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| author | Hou Yunfen Si WuBao Peng XiaoDong Xing Nan |
| author_facet | Hou Yunfen Si WuBao Peng XiaoDong Xing Nan |
| author_sort | Hou Yunfen |
| collection | DOAJ |
| description | Silica fume is a common mineral admixture used in HSC and HPC, but being its high price and shrinkage in concrete, its usage is under restrictions. As a new mineral admixture, metakaolin gets more and more attention. In order to compare the difference between silica fume and metakaolin, the effects of metakaolin and silica fume on concrete workability, compressive strength, and chloride penetration resistance are studied. It shows that incorporating with fly ash together, silica fume reduces the slump extension, but metakaolin can increases it; silica fume can increases early strength more than metakaolin can, but it isn’t useful for later and long-time strength; metakaolin not only can increase early strength, but also can improve long-time strength. Silica fume and metakaolin can increase the chloride penetration resistance. As a new mineral additive, metakaolin can play a role in concrete which silica fume does, even much better than silica fume. |
| first_indexed | 2024-12-22T20:16:04Z |
| format | Article |
| id | doaj.art-2a8c8d2a21824706b98b5779f5e6e691 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-22T20:16:04Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-2a8c8d2a21824706b98b5779f5e6e6912022-12-21T18:13:57ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01670701010.1051/matecconf/20166707010matecconf_smae2016_07010Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete PerformanceHou Yunfen0Si WuBao1Peng XiaoDong2Xing Nan3Beijing High Institution Research Center for Engineering Structures and New Materials, Beijing University of Civil Engineering and ArchitectureBeijing High Institution Research Center for Engineering Structures and New Materials, Beijing University of Civil Engineering and ArchitectureBeijing High Institution Research Center for Engineering Structures and New Materials, Beijing University of Civil Engineering and ArchitectureBeijing High Institution Research Center for Engineering Structures and New Materials, Beijing University of Civil Engineering and ArchitectureSilica fume is a common mineral admixture used in HSC and HPC, but being its high price and shrinkage in concrete, its usage is under restrictions. As a new mineral admixture, metakaolin gets more and more attention. In order to compare the difference between silica fume and metakaolin, the effects of metakaolin and silica fume on concrete workability, compressive strength, and chloride penetration resistance are studied. It shows that incorporating with fly ash together, silica fume reduces the slump extension, but metakaolin can increases it; silica fume can increases early strength more than metakaolin can, but it isn’t useful for later and long-time strength; metakaolin not only can increase early strength, but also can improve long-time strength. Silica fume and metakaolin can increase the chloride penetration resistance. As a new mineral additive, metakaolin can play a role in concrete which silica fume does, even much better than silica fume.http://dx.doi.org/10.1051/matecconf/20166707010metakaolinsilica fumeperformancemineral admixture |
| spellingShingle | Hou Yunfen Si WuBao Peng XiaoDong Xing Nan Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance MATEC Web of Conferences metakaolin silica fume performance mineral admixture |
| title | Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance |
| title_full | Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance |
| title_fullStr | Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance |
| title_full_unstemmed | Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance |
| title_short | Comparison of Effect of Metakaolin and silica Fume on Fly Ash Concrete Performance |
| title_sort | comparison of effect of metakaolin and silica fume on fly ash concrete performance |
| topic | metakaolin silica fume performance mineral admixture |
| url | http://dx.doi.org/10.1051/matecconf/20166707010 |
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