Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties
This study aims to estimate the pumpability and shootability of wet-mix shotcrete (WMS) made with crushed aggregates and various admixtures such as silica fume, fly ash, ground granulated blast furnace slag (GGBFS), metakaolin, and steel fiber based on rheological properties. The IBB rheometer was e...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/9838213 |
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| author | Kyong-Ku Yun Pangil Choi Jung Heum Yeon |
| author_facet | Kyong-Ku Yun Pangil Choi Jung Heum Yeon |
| author_sort | Kyong-Ku Yun |
| collection | DOAJ |
| description | This study aims to estimate the pumpability and shootability of wet-mix shotcrete (WMS) made with crushed aggregates and various admixtures such as silica fume, fly ash, ground granulated blast furnace slag (GGBFS), metakaolin, and steel fiber based on rheological properties. The IBB rheometer was employed as an apparatus to measure the rheological properties of freshly mixed shotcrete such as flow resistance and torque viscosity. Results have shown that the use of silica fume and metakaolin led to satisfactory pumpability, whereas mixtures with fly ash and steel fiber failed to meet the pumping criteria at normal pump pressure. The build-up thickness, an indicator to represent shotcrete shootability, was predicted to vary between 68 and 218 mm, demonstrating that the use of admixtures resulted in a wide spectrum of shootability. In particular, the use of metakaolin was found to substantially increase the predicted build-up thickness only with a small replacement. The findings of this study are expected to be used as an easy-to-use guideline for estimating pumpability and shootability of WMS when no compliance testing data is available. |
| format | Article |
| id | doaj-art-77c84c0aa61d4ff9b6d3e85c98ef61ec |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-77c84c0aa61d4ff9b6d3e85c98ef61ec2025-02-03T06:42:11ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/98382139838213Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological PropertiesKyong-Ku Yun0Pangil Choi1Jung Heum Yeon2Department of Civil Engineering, Kangwon National University, Chuncheon 24341, Republic of KoreaDepartment of Civil and Environmental Engineering, Texas Tech University, Lubbock, TX 79409, USADepartment of Civil and Environmental Engineering, Gachon University, Seongnam 13120, Republic of KoreaThis study aims to estimate the pumpability and shootability of wet-mix shotcrete (WMS) made with crushed aggregates and various admixtures such as silica fume, fly ash, ground granulated blast furnace slag (GGBFS), metakaolin, and steel fiber based on rheological properties. The IBB rheometer was employed as an apparatus to measure the rheological properties of freshly mixed shotcrete such as flow resistance and torque viscosity. Results have shown that the use of silica fume and metakaolin led to satisfactory pumpability, whereas mixtures with fly ash and steel fiber failed to meet the pumping criteria at normal pump pressure. The build-up thickness, an indicator to represent shotcrete shootability, was predicted to vary between 68 and 218 mm, demonstrating that the use of admixtures resulted in a wide spectrum of shootability. In particular, the use of metakaolin was found to substantially increase the predicted build-up thickness only with a small replacement. The findings of this study are expected to be used as an easy-to-use guideline for estimating pumpability and shootability of WMS when no compliance testing data is available.http://dx.doi.org/10.1155/2016/9838213 |
| spellingShingle | Kyong-Ku Yun Pangil Choi Jung Heum Yeon Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties Advances in Materials Science and Engineering |
| title | Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties |
| title_full | Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties |
| title_fullStr | Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties |
| title_full_unstemmed | Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties |
| title_short | Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties |
| title_sort | predicting pumpability and shootability of crushed aggregate wet mix shotcrete based on rheological properties |
| url | http://dx.doi.org/10.1155/2016/9838213 |
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