Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness
In recent years, alkali-activated slag materials have garnered widespread attention in the construction field due to their environmental friendliness and excellent mechanical strength. However, optimizing their composition to reduce autogenous shrinkage remains a pressing issue. This study aims to e...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/adae5a |
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| author | Bo Han Lingjian Cai Fengxia Chi Wei Zhan |
| author_facet | Bo Han Lingjian Cai Fengxia Chi Wei Zhan |
| author_sort | Bo Han |
| collection | DOAJ |
| description | In recent years, alkali-activated slag materials have garnered widespread attention in the construction field due to their environmental friendliness and excellent mechanical strength. However, optimizing their composition to reduce autogenous shrinkage remains a pressing issue. This study aims to explore the effects of partially replacing granulated blast furnace slag with metakaolin on the performance of alkali-activated slag grouting materials and evaluate its grouting effectiveness. By setting different replacement levels of metakaolin for granulated blast furnace slag, the study systematically investigates the fluidity, autogenous shrinkage, and mechanical properties of alkali-activated slag grouting materials. The experimental results show that as the amount of metakaolin increases, the fluidity of the grouting material significantly decreases, while the autogenous shrinkage rate reduces; however, the mechanical properties exhibit a complex variation trend. Specifically, when the metakaolin content is at 10%, the comprehensive performance is optimal with excellent grouting effect. This finding provides new insights and methods for optimizing alkali-activated slag grouting materials. |
| format | Article |
| id | doaj-art-322c45f8799642c6b028a4cb2f595f5c |
| institution | OA Journals |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-322c45f8799642c6b028a4cb2f595f5c2025-08-20T02:14:31ZengIOP PublishingMaterials Research Express2053-15912025-01-0112202550710.1088/2053-1591/adae5aImpact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectivenessBo Han0https://orcid.org/0000-0002-4757-4795Lingjian Cai1Fengxia Chi2Wei Zhan3Key Laboratory of Road and Bridge Detection and Maintenance Technology of Zhejiang Province , Hangzhou, 310000, People’s Republic of China; Zhejiang Scientific Research Institute of Transport, Hangzhou, 310000, People’s Republic of ChinaLinhai City Highway and Transportation Management Center , Taizhou, 317000, People’s Republic of ChinaKey Laboratory of Road and Bridge Detection and Maintenance Technology of Zhejiang Province , Hangzhou, 310000, People’s Republic of China; Zhejiang Scientific Research Institute of Transport, Hangzhou, 310000, People’s Republic of ChinaKey Laboratory of Road and Bridge Detection and Maintenance Technology of Zhejiang Province , Hangzhou, 310000, People’s Republic of China; Zhejiang Scientific Research Institute of Transport, Hangzhou, 310000, People’s Republic of ChinaIn recent years, alkali-activated slag materials have garnered widespread attention in the construction field due to their environmental friendliness and excellent mechanical strength. However, optimizing their composition to reduce autogenous shrinkage remains a pressing issue. This study aims to explore the effects of partially replacing granulated blast furnace slag with metakaolin on the performance of alkali-activated slag grouting materials and evaluate its grouting effectiveness. By setting different replacement levels of metakaolin for granulated blast furnace slag, the study systematically investigates the fluidity, autogenous shrinkage, and mechanical properties of alkali-activated slag grouting materials. The experimental results show that as the amount of metakaolin increases, the fluidity of the grouting material significantly decreases, while the autogenous shrinkage rate reduces; however, the mechanical properties exhibit a complex variation trend. Specifically, when the metakaolin content is at 10%, the comprehensive performance is optimal with excellent grouting effect. This finding provides new insights and methods for optimizing alkali-activated slag grouting materials.https://doi.org/10.1088/2053-1591/adae5aalkali-activatedgrouting materialgranulated blast furnace slagmetakaolinautogenous shrinkage |
| spellingShingle | Bo Han Lingjian Cai Fengxia Chi Wei Zhan Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness Materials Research Express alkali-activated grouting material granulated blast furnace slag metakaolin autogenous shrinkage |
| title | Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness |
| title_full | Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness |
| title_fullStr | Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness |
| title_full_unstemmed | Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness |
| title_short | Impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali-activated slag grouting materials and evaluation of grouting effectiveness |
| title_sort | impact of metakaolin to partially replace granulated blast furnace slag on the performance of alkali activated slag grouting materials and evaluation of grouting effectiveness |
| topic | alkali-activated grouting material granulated blast furnace slag metakaolin autogenous shrinkage |
| url | https://doi.org/10.1088/2053-1591/adae5a |
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