Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests
This paper discusses one method of prevention of capillary water rising through the walls, i.e., making horizontal damp-proof courses by chemical injection. The aim of the tests was to find out which materials and groups of injection methods give the opportunity to create the most effective secondar...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447924000777 |
| _version_ | 1797238083948642304 |
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| author | Barbara Francke Artur Piekarczuk Joanna Witkowska Dobrev |
| author_facet | Barbara Francke Artur Piekarczuk Joanna Witkowska Dobrev |
| author_sort | Barbara Francke |
| collection | DOAJ |
| description | This paper discusses one method of prevention of capillary water rising through the walls, i.e., making horizontal damp-proof courses by chemical injection. The aim of the tests was to find out which materials and groups of injection methods give the opportunity to create the most effective secondary horizontal damp proof course of underground parts of walls. The tests were carried out on large samples, i.e., walls built under ideal laboratory conditions of water capillary rise, i.e., with the repetitive properties of the materials used to build the test’s walls, without its additional salinity. The nine randomly selected injection products were tested as two product groups: silanes and silicates. Tested silanes and/or siloxanes products were in the form of cream or paste, silicates were in the form of emulsions or dispersions. They were injected into walls with both methods, i.e. gravity and low pressure. Visible effects of the action of the damp-proof courses usually occur after 90 days after injection of products into the wall. A faster increase in efficiency was found for single-row injection than for double-row injection but with higher values after the end of the study for double injection. According to the density of injection products, the highest efficiency was found for products with a density range of 0.92 kg/dm3 up to 0.96 kg/dm3, for silanes products and with a density less than 1.2 kg/dm3 for silicate products. |
| first_indexed | 2024-04-24T17:30:01Z |
| format | Article |
| id | doaj.art-fa570ecf7d55417bbce725a2d8ceb2e5 |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-04-24T17:30:01Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-fa570ecf7d55417bbce725a2d8ceb2e52024-03-28T06:37:41ZengElsevierAin Shams Engineering Journal2090-44792024-05-01155102702Efficiency assessment of horizontal damp proof courses made by chemical injection in wall testsBarbara Francke0Artur Piekarczuk1Joanna Witkowska Dobrev2Institute of Civil Engineering, Department of Mechanics and Building Constructions, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-787 Warsaw, Poland; Corresponding author.Building Research Institute, Filtrowa 1, 00-611 Warsaw, PolandInstitute of Civil Engineering, Department of Mechanics and Building Constructions, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159, 02-787 Warsaw, PolandThis paper discusses one method of prevention of capillary water rising through the walls, i.e., making horizontal damp-proof courses by chemical injection. The aim of the tests was to find out which materials and groups of injection methods give the opportunity to create the most effective secondary horizontal damp proof course of underground parts of walls. The tests were carried out on large samples, i.e., walls built under ideal laboratory conditions of water capillary rise, i.e., with the repetitive properties of the materials used to build the test’s walls, without its additional salinity. The nine randomly selected injection products were tested as two product groups: silanes and silicates. Tested silanes and/or siloxanes products were in the form of cream or paste, silicates were in the form of emulsions or dispersions. They were injected into walls with both methods, i.e. gravity and low pressure. Visible effects of the action of the damp-proof courses usually occur after 90 days after injection of products into the wall. A faster increase in efficiency was found for single-row injection than for double-row injection but with higher values after the end of the study for double injection. According to the density of injection products, the highest efficiency was found for products with a density range of 0.92 kg/dm3 up to 0.96 kg/dm3, for silanes products and with a density less than 1.2 kg/dm3 for silicate products.http://www.sciencedirect.com/science/article/pii/S2090447924000777WaterproofingSecondary damp proof coursesChemical injectionsEfficiency assessmentWall tests |
| spellingShingle | Barbara Francke Artur Piekarczuk Joanna Witkowska Dobrev Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests Ain Shams Engineering Journal Waterproofing Secondary damp proof courses Chemical injections Efficiency assessment Wall tests |
| title | Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests |
| title_full | Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests |
| title_fullStr | Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests |
| title_full_unstemmed | Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests |
| title_short | Efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests |
| title_sort | efficiency assessment of horizontal damp proof courses made by chemical injection in wall tests |
| topic | Waterproofing Secondary damp proof courses Chemical injections Efficiency assessment Wall tests |
| url | http://www.sciencedirect.com/science/article/pii/S2090447924000777 |
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