Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus)
According to the practice of making concrete products, which steaming was realized in thermoshaping machines, concretes of such products are notable for their defective structure. An unevenness of the thermal field in the concrete when warming-up it by contact method causes migration of free moistur...
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| Format: | Article |
| Language: | English |
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Peter the Great St. Petersburg Polytechnic University
2012-12-01
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| Series: | Инженерно-строительный журнал |
| Subjects: | |
| Online Access: | http://www.engstroy.spb.ru/index_2012_08/yankovskiy.pdf |
| _version_ | 1818115336067612672 |
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| author | Yankovsky L.V. |
| author_facet | Yankovsky L.V. |
| author_sort | Yankovsky L.V. |
| collection | DOAJ |
| description | According to the practice of making concrete products, which steaming was realized in thermoshaping machines, concretes of such products are notable for their defective structure. An unevenness of the thermal field in the concrete when warming-up it by contact method causes migration of free moisture, as a result, there is a process of hydraulic and thermal conductivity on which the moisture transfer under the influence of the pressure gradient in hardening concrete superimposes. Recently study on the removal of this defect by covering with film-forming materials the products’ surfaces free at worming from the formwork. In this paper specimen K-9 of a water-soluble polymer representing waste products of nitrogen is considered. Results of natural experiments devoted to exploring the influence of film-forming agent on durability of cement concrete products with their subsequent operation under the impact of rigorous climate are shown. In the manufacturing of production in thermoshaping machines the most positive effect is in sharing of plasticizer and film-forming mechanism with the subsequent protection of concrete. Such concrete’s properties like hardness, crack resistance are improved by using this technology as well as the resistance to the impact of climate. |
| first_indexed | 2024-12-11T04:05:00Z |
| format | Article |
| id | doaj.art-4e33148cab224ac5b09693a04ec1bf67 |
| institution | Directory Open Access Journal |
| issn | 2071-4726 2071-0305 |
| language | English |
| last_indexed | 2024-12-11T04:05:00Z |
| publishDate | 2012-12-01 |
| publisher | Peter the Great St. Petersburg Polytechnic University |
| record_format | Article |
| series | Инженерно-строительный журнал |
| spelling | doaj.art-4e33148cab224ac5b09693a04ec1bf672022-12-22T01:21:32ZengPeter the Great St. Petersburg Polytechnic UniversityИнженерно-строительный журнал2071-47262071-03052012-12-013487984Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus)Yankovsky L.V.According to the practice of making concrete products, which steaming was realized in thermoshaping machines, concretes of such products are notable for their defective structure. An unevenness of the thermal field in the concrete when warming-up it by contact method causes migration of free moisture, as a result, there is a process of hydraulic and thermal conductivity on which the moisture transfer under the influence of the pressure gradient in hardening concrete superimposes. Recently study on the removal of this defect by covering with film-forming materials the products’ surfaces free at worming from the formwork. In this paper specimen K-9 of a water-soluble polymer representing waste products of nitrogen is considered. Results of natural experiments devoted to exploring the influence of film-forming agent on durability of cement concrete products with their subsequent operation under the impact of rigorous climate are shown. In the manufacturing of production in thermoshaping machines the most positive effect is in sharing of plasticizer and film-forming mechanism with the subsequent protection of concrete. Such concrete’s properties like hardness, crack resistance are improved by using this technology as well as the resistance to the impact of climate.http://www.engstroy.spb.ru/index_2012_08/yankovskiy.pdfplasticizerfilm-forming agentconcretecement concrete productsthe impact of climatedurability |
| spellingShingle | Yankovsky L.V. Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus) Инженерно-строительный журнал plasticizer film-forming agent concrete cement concrete products the impact of climate durability |
| title | Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus) |
| title_full | Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus) |
| title_fullStr | Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus) |
| title_full_unstemmed | Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus) |
| title_short | Application of the film-forming material for increasing concrete articles firmness in cold continental climate (rus) |
| title_sort | application of the film forming material for increasing concrete articles firmness in cold continental climate rus |
| topic | plasticizer film-forming agent concrete cement concrete products the impact of climate durability |
| url | http://www.engstroy.spb.ru/index_2012_08/yankovskiy.pdf |
| work_keys_str_mv | AT yankovskylv applicationofthefilmformingmaterialforincreasingconcretearticlesfirmnessincoldcontinentalclimaterus |