Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer
Concrete structures, when exposed to fire or high temperatures for a certain time, could suffer partial damage or complete structural failure. Passive fire-protective coating materials are an alternative way to prevent or delay damage to concrete structures resulting from fire. Superabsorbent polyme...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/23/5266 |
| _version_ | 1797462230161162240 |
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| author | Sittisak Jamnam Gritsada Sua-iam Buchit Maho Satharat Pianfuengfoo Manote Sappakittipakorn Hexin Zhang Suchart Limkatanyu Piti Sukontasukkul |
| author_facet | Sittisak Jamnam Gritsada Sua-iam Buchit Maho Satharat Pianfuengfoo Manote Sappakittipakorn Hexin Zhang Suchart Limkatanyu Piti Sukontasukkul |
| author_sort | Sittisak Jamnam |
| collection | DOAJ |
| description | Concrete structures, when exposed to fire or high temperatures for a certain time, could suffer partial damage or complete structural failure. Passive fire-protective coating materials are an alternative way to prevent or delay damage to concrete structures resulting from fire. Superabsorbent polymer (SP) is a synthetic material known for its ability to absorb and retain a large volume of water within itself. With this unique property, the SP exhibits great potential for use as a passive fire protection material. Although several studies have been carried out to investigate the effect of SP as a surface coating material for fire protection, very few have been investigated on the potential use of SP mixed with mortar as a passive fire-protective layer. The objective of this study is to introduce the use of SP in plastering mortar as a fire-protective layer for concrete subjected to temperatures up to 800 °C. This study is divided into two parts: (1) investigating the properties of cement mortar mixed with SP at 0.5% (CONC/SP-0.5) and 1.0% (CONC/SP-1.0) by weight of cement, and (2) investigating the potential use of SP mortar as a plastering layer for concrete subject to high temperatures. The experimental results showed that the density and compressive strength of SP mortar decreases with increasing SP dosages. From the heat exposure results, SP mortar exhibited lower strength loss due to the ability to mitigate moisture through its interconnected pore system. As for the use of SP mortar as a plastering layer, the results demonstrated the concrete specimen plastered with SP mortar had a lower temperature at the interface and core than that plastered with plain mortar. This led to a reduced strength loss of 20.5% for CONC/SP-0.5 and 17.2% for CONC/SP-1.0. |
| first_indexed | 2024-03-09T17:33:32Z |
| format | Article |
| id | doaj.art-223416af8b594dd99d7f51207d363c3d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T17:33:32Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-223416af8b594dd99d7f51207d363c3d2023-11-24T12:01:13ZengMDPI AGPolymers2073-43602022-12-011423526610.3390/polym14235266Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective LayerSittisak Jamnam0Gritsada Sua-iam1Buchit Maho2Satharat Pianfuengfoo3Manote Sappakittipakorn4Hexin Zhang5Suchart Limkatanyu6Piti Sukontasukkul7Construction and Building Materials Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Phra Nakhon, Bangkok 10300, ThailandDepartment of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Phra Nakhon, Bangkok 10300, ThailandConstruction and Building Materials Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandConstruction and Building Materials Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandSchool of Engineering and the Built Environment, Edinburgh Napier University, Edinburgh EH11 4BN, Scotland, UKDepartment of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai Campus, Songkla 90110, ThailandConstruction and Building Materials Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandConcrete structures, when exposed to fire or high temperatures for a certain time, could suffer partial damage or complete structural failure. Passive fire-protective coating materials are an alternative way to prevent or delay damage to concrete structures resulting from fire. Superabsorbent polymer (SP) is a synthetic material known for its ability to absorb and retain a large volume of water within itself. With this unique property, the SP exhibits great potential for use as a passive fire protection material. Although several studies have been carried out to investigate the effect of SP as a surface coating material for fire protection, very few have been investigated on the potential use of SP mixed with mortar as a passive fire-protective layer. The objective of this study is to introduce the use of SP in plastering mortar as a fire-protective layer for concrete subjected to temperatures up to 800 °C. This study is divided into two parts: (1) investigating the properties of cement mortar mixed with SP at 0.5% (CONC/SP-0.5) and 1.0% (CONC/SP-1.0) by weight of cement, and (2) investigating the potential use of SP mortar as a plastering layer for concrete subject to high temperatures. The experimental results showed that the density and compressive strength of SP mortar decreases with increasing SP dosages. From the heat exposure results, SP mortar exhibited lower strength loss due to the ability to mitigate moisture through its interconnected pore system. As for the use of SP mortar as a plastering layer, the results demonstrated the concrete specimen plastered with SP mortar had a lower temperature at the interface and core than that plastered with plain mortar. This led to a reduced strength loss of 20.5% for CONC/SP-0.5 and 17.2% for CONC/SP-1.0.https://www.mdpi.com/2073-4360/14/23/5266superabsorbent polymerscement plastering mortarpassive fire protection layercompressive strength lossmoisture mitigation |
| spellingShingle | Sittisak Jamnam Gritsada Sua-iam Buchit Maho Satharat Pianfuengfoo Manote Sappakittipakorn Hexin Zhang Suchart Limkatanyu Piti Sukontasukkul Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer Polymers superabsorbent polymers cement plastering mortar passive fire protection layer compressive strength loss moisture mitigation |
| title | Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer |
| title_full | Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer |
| title_fullStr | Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer |
| title_full_unstemmed | Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer |
| title_short | Use of Cement Mortar Incorporating Superabsorbent Polymer as a Passive Fire-Protective Layer |
| title_sort | use of cement mortar incorporating superabsorbent polymer as a passive fire protective layer |
| topic | superabsorbent polymers cement plastering mortar passive fire protection layer compressive strength loss moisture mitigation |
| url | https://www.mdpi.com/2073-4360/14/23/5266 |
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