Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete
It was attempted to provoke and foresee sudden loss of workability during concrete pumping through a series of full-scale tests. Batches of 2 m3 concrete were produced at a ready-mix plant, transported by concrete trucks and pumped by industrial pumps, to reveal sudden loss of workability. Different...
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| Language: | English |
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Sciendo
2024-12-01
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| Series: | Nordic Concrete Research |
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| Online Access: | https://doi.org/10.2478/ncr-2024-0005 |
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| author | Mortensvik Øystein Thorstensen Rein Terje |
| author_facet | Mortensvik Øystein Thorstensen Rein Terje |
| author_sort | Mortensvik Øystein |
| collection | DOAJ |
| description | It was attempted to provoke and foresee sudden loss of workability during concrete pumping through a series of full-scale tests. Batches of 2 m3 concrete were produced at a ready-mix plant, transported by concrete trucks and pumped by industrial pumps, to reveal sudden loss of workability. Different mix designs, extension hoses and pump setups were utilised in a six series experiment. An experimental procedure for measuring loss of workability at a laboratory scale was developed due to the standardised procedures for slump measurements camouflaging loss of workability. The experiments revealed that pumping through a boom seems to have a positive effect by reducing probability of sudden loss of workability. Furthermore, the fine aggregate seems to have a strong influence on the phenomenon, especially in the range of 0.25 mm to 1 mm. |
| format | Article |
| id | doaj-art-d92e8397a89646cc8c513676a877d47d |
| institution | Kabale University |
| issn | 2545-2819 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Nordic Concrete Research |
| spelling | doaj-art-d92e8397a89646cc8c513676a877d47d2025-02-02T15:48:41ZengSciendoNordic Concrete Research2545-28192024-12-01712254610.2478/ncr-2024-0005Provoking and Foreseeing Sudden Changes in the Workability of Pumped ConcreteMortensvik Øystein0Thorstensen Rein Terje1Technology manager, Ribe Betong AS and PhD Candidate Department of Engineering Sciences Faculty of Engineering and Science University of Agder Jon Lilletuns vei 9, 4879GrimstadProfessor, Department of Engineering Sciences Faculty of Engineering and Science University of Agder Jon Lilletuns vei 9, 4879GrimstadIt was attempted to provoke and foresee sudden loss of workability during concrete pumping through a series of full-scale tests. Batches of 2 m3 concrete were produced at a ready-mix plant, transported by concrete trucks and pumped by industrial pumps, to reveal sudden loss of workability. Different mix designs, extension hoses and pump setups were utilised in a six series experiment. An experimental procedure for measuring loss of workability at a laboratory scale was developed due to the standardised procedures for slump measurements camouflaging loss of workability. The experiments revealed that pumping through a boom seems to have a positive effect by reducing probability of sudden loss of workability. Furthermore, the fine aggregate seems to have a strong influence on the phenomenon, especially in the range of 0.25 mm to 1 mm.https://doi.org/10.2478/ncr-2024-0005sudden changes in workabilitypumpingproductionplacement |
| spellingShingle | Mortensvik Øystein Thorstensen Rein Terje Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete Nordic Concrete Research sudden changes in workability pumping production placement |
| title | Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete |
| title_full | Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete |
| title_fullStr | Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete |
| title_full_unstemmed | Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete |
| title_short | Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete |
| title_sort | provoking and foreseeing sudden changes in the workability of pumped concrete |
| topic | sudden changes in workability pumping production placement |
| url | https://doi.org/10.2478/ncr-2024-0005 |
| work_keys_str_mv | AT mortensvikøystein provokingandforeseeingsuddenchangesintheworkabilityofpumpedconcrete AT thorstensenreinterje provokingandforeseeingsuddenchangesintheworkabilityofpumpedconcrete |