Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry
Good fluidity is the precondition to ensure the pipeline transportation of the filling slurry. The admixture in the filling slurry will affect the rheological properties of the slurry. In this paper, yield stress (YS), viscosity coefficient (VC), and expansion (ED) of the filling slurry were measure...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8872206 |
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| author | Fulin Wang Faguang Yang Zhengping Yuan Shijiao Yang |
| author_facet | Fulin Wang Faguang Yang Zhengping Yuan Shijiao Yang |
| author_sort | Fulin Wang |
| collection | DOAJ |
| description | Good fluidity is the precondition to ensure the pipeline transportation of the filling slurry. The admixture in the filling slurry will affect the rheological properties of the slurry. In this paper, yield stress (YS), viscosity coefficient (VC), and expansion (ED) of the filling slurry were measured by the MCR52 rheometer and expansion tester, respectively, and the influence regularities of the three kinds of admixtures including fly ash (FA), polycarboxylate superplasticizer (PS), and polyethylene oxide (PEO) on the rheological properties of the filling slurry were obtained. The results show that when other conditions are fixed, the fluidity of the slurry becomes worse with the increase of the amount of fly ash but improves with the increase of the amount of the polycarboxylate superplasticizer; polyethylene oxide is not suitable for the improvement of the fluidity of the high-concentration full-tailing filling slurry, and the fluidity of the slurry becomes worse rapidly with the increase of the amount of polyethylene oxide. |
| format | Article |
| id | doaj-art-dbc3df01163a409fb8bac7875d703027 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-dbc3df01163a409fb8bac7875d7030272025-02-03T05:49:39ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88722068872206Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling SlurryFulin Wang0Faguang Yang1Zhengping Yuan2Shijiao Yang3School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, ChinaSchool of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, ChinaSchool of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, ChinaSchool of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, ChinaGood fluidity is the precondition to ensure the pipeline transportation of the filling slurry. The admixture in the filling slurry will affect the rheological properties of the slurry. In this paper, yield stress (YS), viscosity coefficient (VC), and expansion (ED) of the filling slurry were measured by the MCR52 rheometer and expansion tester, respectively, and the influence regularities of the three kinds of admixtures including fly ash (FA), polycarboxylate superplasticizer (PS), and polyethylene oxide (PEO) on the rheological properties of the filling slurry were obtained. The results show that when other conditions are fixed, the fluidity of the slurry becomes worse with the increase of the amount of fly ash but improves with the increase of the amount of the polycarboxylate superplasticizer; polyethylene oxide is not suitable for the improvement of the fluidity of the high-concentration full-tailing filling slurry, and the fluidity of the slurry becomes worse rapidly with the increase of the amount of polyethylene oxide.http://dx.doi.org/10.1155/2020/8872206 |
| spellingShingle | Fulin Wang Faguang Yang Zhengping Yuan Shijiao Yang Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry Advances in Civil Engineering |
| title | Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry |
| title_full | Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry |
| title_fullStr | Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry |
| title_full_unstemmed | Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry |
| title_short | Effects of Fly Ash and Chemical Admixtures on the Rheological Properties of High-Concentration Full-Tailing Filling Slurry |
| title_sort | effects of fly ash and chemical admixtures on the rheological properties of high concentration full tailing filling slurry |
| url | http://dx.doi.org/10.1155/2020/8872206 |
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