Scientific basis of a new method for hydrophobic modification of mineral binders using peat products
This study deals with the issue of caking of mineral binding materials during storage and transportation. The author conducted a critical analysis of known methods for the protection of cement from exposure to moisture and water vapour. Common disadvantages of these methods are their low effectivene...
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| Format: | Article |
| Language: | English |
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International Mire Conservation Group and International Peatland Society
2016-10-01
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| Series: | Mires and Peat |
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| Online Access: | http://mires-and-peat.net/media/map18/map_18_22.pdf |
| _version_ | 1827853537833385984 |
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| author | O. Misnikov |
| author_facet | O. Misnikov |
| author_sort | O. Misnikov |
| collection | DOAJ |
| description | This study deals with the issue of caking of mineral binding materials during storage and transportation. The author conducted a critical analysis of known methods for the protection of cement from exposure to moisture and water vapour. Common disadvantages of these methods are their low effectiveness and complexity of use in industrial and domestic environments. This article introduces a new method for hydrophobising construction materials using peat, which achieves high water repellency in the modified materials with relatively low expenditure on organic materials. The author proposes film coating of the mineral particles of dispersed hydrophilic materials as a protection mechanism against their undesirable exposure to moisture during storage. The insulating film consists of hydrophobic products (bitumens) released during thermal decomposition of the organic matter in peat. The estimated thickness of the bitumen film is about 12 nm and it does not adversely affect the flow properties of the powder. A model of the formation of film coatings on mineral particles is provided and their elemental chemical composition is determined. It is shown experimentally that the modified hydrophobic cement is protected from exposure to liquid vapours, and optimal values of organic component concentrations in the dispersed mineral matter that do not reduce the strength of cement mortar are identified. |
| first_indexed | 2024-03-12T11:07:13Z |
| format | Article |
| id | doaj.art-0d7a222950bc480dac5b700f72fbcb96 |
| institution | Directory Open Access Journal |
| issn | 1819-754X |
| language | English |
| last_indexed | 2024-03-12T11:07:13Z |
| publishDate | 2016-10-01 |
| publisher | International Mire Conservation Group and International Peatland Society |
| record_format | Article |
| series | Mires and Peat |
| spelling | doaj.art-0d7a222950bc480dac5b700f72fbcb962023-09-02T03:34:04ZengInternational Mire Conservation Group and International Peatland SocietyMires and Peat1819-754X2016-10-01182211510.19189/MaP.2016.OMB.240Scientific basis of a new method for hydrophobic modification of mineral binders using peat productsO. Misnikov0Department of Geotechnology and Peat Production, Tver State Technical University, Russian FederationThis study deals with the issue of caking of mineral binding materials during storage and transportation. The author conducted a critical analysis of known methods for the protection of cement from exposure to moisture and water vapour. Common disadvantages of these methods are their low effectiveness and complexity of use in industrial and domestic environments. This article introduces a new method for hydrophobising construction materials using peat, which achieves high water repellency in the modified materials with relatively low expenditure on organic materials. The author proposes film coating of the mineral particles of dispersed hydrophilic materials as a protection mechanism against their undesirable exposure to moisture during storage. The insulating film consists of hydrophobic products (bitumens) released during thermal decomposition of the organic matter in peat. The estimated thickness of the bitumen film is about 12 nm and it does not adversely affect the flow properties of the powder. A model of the formation of film coatings on mineral particles is provided and their elemental chemical composition is determined. It is shown experimentally that the modified hydrophobic cement is protected from exposure to liquid vapours, and optimal values of organic component concentrations in the dispersed mineral matter that do not reduce the strength of cement mortar are identified.http://mires-and-peat.net/media/map18/map_18_22.pdfcementfilm coatinghydrophobic materialhydrophobisation effectpeat bitumen |
| spellingShingle | O. Misnikov Scientific basis of a new method for hydrophobic modification of mineral binders using peat products Mires and Peat cement film coating hydrophobic material hydrophobisation effect peat bitumen |
| title | Scientific basis of a new method for hydrophobic modification of mineral binders using peat products |
| title_full | Scientific basis of a new method for hydrophobic modification of mineral binders using peat products |
| title_fullStr | Scientific basis of a new method for hydrophobic modification of mineral binders using peat products |
| title_full_unstemmed | Scientific basis of a new method for hydrophobic modification of mineral binders using peat products |
| title_short | Scientific basis of a new method for hydrophobic modification of mineral binders using peat products |
| title_sort | scientific basis of a new method for hydrophobic modification of mineral binders using peat products |
| topic | cement film coating hydrophobic material hydrophobisation effect peat bitumen |
| url | http://mires-and-peat.net/media/map18/map_18_22.pdf |
| work_keys_str_mv | AT omisnikov scientificbasisofanewmethodforhydrophobicmodificationofmineralbindersusingpeatproducts |