Chloride penetration resistance of concrete sealer and coating systems
This study investigated the chloride penetration resistance of a silane-based sealer (SS1), an acrylic-based coating (AC1), and two cementitious coatings (CC1 and CC2) when applied on concrete surface. Concrete powder samples were collected from 15, 30 and 45 mm depths of sealer and coating treated...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2015-03-01
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| Series: | Journal of Civil Engineering and Management |
| Subjects: | |
| Online Access: | http://journals.vgtu.lt/index.php/JCEM/article/view/2948 |
| _version_ | 1818893209066012672 |
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| author | Khaled A. Soudki Md. Safiuddin Paul Jeffs Gary Macdonald Marcos Kroker |
| author_facet | Khaled A. Soudki Md. Safiuddin Paul Jeffs Gary Macdonald Marcos Kroker |
| author_sort | Khaled A. Soudki |
| collection | DOAJ |
| description | This study investigated the chloride penetration resistance of a silane-based sealer (SS1), an acrylic-based coating (AC1), and two cementitious coatings (CC1 and CC2) when applied on concrete surface. Concrete powder samples were collected from 15, 30 and 45 mm depths of sealer and coating treated concrete prism specimens, which were exposed to H2O and de-icing solutions of NaCl, Geomelt S30, MgCl2 and CaCl2 for 100 freeze-thaw cycles followed by 25 wet-dry cycles. Chloride analysis was carried out to determine the total water-soluble chlorides of concrete. Test results revealed that the chloride penetration for exposure to the de-icing chemicals occurred at a depth of 15 mm from the concrete surface. The highest chloride penetration occurred for the non-treated concrete. The sealer ‘SS1’ exhibited good performance except with exposure to NaCl solution. Among the three different coating products, the acrylic-based coating ‘AC1’ was the best-performing coating, whereas the cementitious coating ‘CC1’ had the worst performance. The amount of penetrated water-soluble chlorides was greater than the maximum recommended value of 0.025% (by concrete weight) at 15 mm depth for the sealer ‘SS1’ when exposed to NaCl de-icing solution, and for the coating ‘CC1’ when exposed to NaCl, CaCl2 and MgCl2 solutions. |
| first_indexed | 2024-12-19T18:08:57Z |
| format | Article |
| id | doaj.art-dc0b6684f5e94ed38ac63abca0059ebb |
| institution | Directory Open Access Journal |
| issn | 1392-3730 1822-3605 |
| language | English |
| last_indexed | 2024-12-19T18:08:57Z |
| publishDate | 2015-03-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Civil Engineering and Management |
| spelling | doaj.art-dc0b6684f5e94ed38ac63abca0059ebb2022-12-21T20:11:23ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052015-03-0121410.3846/13923730.2014.890659Chloride penetration resistance of concrete sealer and coating systemsKhaled A. Soudki0Md. Safiuddin1Paul Jeffs2Gary Macdonald3Marcos Kroker4Department of Civil and Environmental Engineering, Faculty of Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1School of Architectural Studies and Angelo del Zotto School of Construction Management, George Brown College, 146 Kendal Avenue, Toronto, Ontario, Canada M5T 2T9PJ Materials Consultant Limited, 11 Wagoners Trail, Guelph, Ontario, Canada N1G 3M9Region of Waterloo, 150 Fredrick Street, Kitchener, Ontario, Canada N2G 4J3Region of Waterloo, 150 Fredrick Street, Kitchener, Ontario, Canada N2G 4J3This study investigated the chloride penetration resistance of a silane-based sealer (SS1), an acrylic-based coating (AC1), and two cementitious coatings (CC1 and CC2) when applied on concrete surface. Concrete powder samples were collected from 15, 30 and 45 mm depths of sealer and coating treated concrete prism specimens, which were exposed to H2O and de-icing solutions of NaCl, Geomelt S30, MgCl2 and CaCl2 for 100 freeze-thaw cycles followed by 25 wet-dry cycles. Chloride analysis was carried out to determine the total water-soluble chlorides of concrete. Test results revealed that the chloride penetration for exposure to the de-icing chemicals occurred at a depth of 15 mm from the concrete surface. The highest chloride penetration occurred for the non-treated concrete. The sealer ‘SS1’ exhibited good performance except with exposure to NaCl solution. Among the three different coating products, the acrylic-based coating ‘AC1’ was the best-performing coating, whereas the cementitious coating ‘CC1’ had the worst performance. The amount of penetrated water-soluble chlorides was greater than the maximum recommended value of 0.025% (by concrete weight) at 15 mm depth for the sealer ‘SS1’ when exposed to NaCl de-icing solution, and for the coating ‘CC1’ when exposed to NaCl, CaCl2 and MgCl2 solutions.http://journals.vgtu.lt/index.php/JCEM/article/view/2948cementitious coatingchloride penetrationconcretede-icing chemicalspenetrating sealerwater-soluble chlorides |
| spellingShingle | Khaled A. Soudki Md. Safiuddin Paul Jeffs Gary Macdonald Marcos Kroker Chloride penetration resistance of concrete sealer and coating systems Journal of Civil Engineering and Management cementitious coating chloride penetration concrete de-icing chemicals penetrating sealer water-soluble chlorides |
| title | Chloride penetration resistance of concrete sealer and coating systems |
| title_full | Chloride penetration resistance of concrete sealer and coating systems |
| title_fullStr | Chloride penetration resistance of concrete sealer and coating systems |
| title_full_unstemmed | Chloride penetration resistance of concrete sealer and coating systems |
| title_short | Chloride penetration resistance of concrete sealer and coating systems |
| title_sort | chloride penetration resistance of concrete sealer and coating systems |
| topic | cementitious coating chloride penetration concrete de-icing chemicals penetrating sealer water-soluble chlorides |
| url | http://journals.vgtu.lt/index.php/JCEM/article/view/2948 |
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