Mechanical behaviour and permeability of geopolymer mortars
Geopolymers may be considered as an alternative materials to Portland cement ones, providing an opportunity to exploit industrial wastes or co-products with promising short and long-term performances in the construction field, f.ex. for reparation issues. However, these materials are porous and cons...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/18/matecconf_matbud2020_01043.pdf |
| _version_ | 1818584881036263424 |
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| author | Sitarz Mateusz Choińska Marta Hager Izabela Khelidj Abdelhafid |
| author_facet | Sitarz Mateusz Choińska Marta Hager Izabela Khelidj Abdelhafid |
| author_sort | Sitarz Mateusz |
| collection | DOAJ |
| description | Geopolymers may be considered as an alternative materials to Portland cement ones, providing an opportunity to exploit industrial wastes or co-products with promising short and long-term performances in the construction field, f.ex. for reparation issues. However, these materials are porous and consequently their durability depends on the risk of intrusion of aggressive agents. In order to assess their durability, we propose to investigate in this study gas permeability of sound and mechanically loaded specimens. Loading is performed using a splitting tensile test driven by a crack opening displacement up to a level of 50 microns. Tests are performed on four types of blended fly-ash (FA) and ground granulated blast furnace slag (GGBFS) geopolymer mortars, containing four different levels of GGGBF slag in the binder: 0%, 10%, 30% and 50% wt. Results show a positive effect of blending with slag in terms of modulus of elasticity and tensile and compressive strength, as well as the permeability. However, permeability recovery after cracking is the lowest when blending is the highest. |
| first_indexed | 2024-12-16T08:28:13Z |
| format | Article |
| id | doaj.art-bcfb3f364a6448b388cbc265c1408f64 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T08:28:13Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-bcfb3f364a6448b388cbc265c1408f642022-12-21T22:37:56ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013220104310.1051/matecconf/202032201043matecconf_matbud2020_01043Mechanical behaviour and permeability of geopolymer mortarsSitarz Mateusz0Choińska Marta1Hager Izabela2Khelidj Abdelhafid3Cracow University of Technology, Faculty of Civil Engineering, Chair of Building Materials Nantes University - IUT Saint-Nazaire, Research Institute in Civil and Mechanical Engineering GeM – UMR CNRS 6183Cracow University of Technology, Faculty of Civil Engineering, Chair of Building Materials Nantes University - IUT Saint-Nazaire, Research Institute in Civil and Mechanical Engineering GeM – UMR CNRS 6183Geopolymers may be considered as an alternative materials to Portland cement ones, providing an opportunity to exploit industrial wastes or co-products with promising short and long-term performances in the construction field, f.ex. for reparation issues. However, these materials are porous and consequently their durability depends on the risk of intrusion of aggressive agents. In order to assess their durability, we propose to investigate in this study gas permeability of sound and mechanically loaded specimens. Loading is performed using a splitting tensile test driven by a crack opening displacement up to a level of 50 microns. Tests are performed on four types of blended fly-ash (FA) and ground granulated blast furnace slag (GGBFS) geopolymer mortars, containing four different levels of GGGBF slag in the binder: 0%, 10%, 30% and 50% wt. Results show a positive effect of blending with slag in terms of modulus of elasticity and tensile and compressive strength, as well as the permeability. However, permeability recovery after cracking is the lowest when blending is the highest.https://www.matec-conferences.org/articles/matecconf/pdf/2020/18/matecconf_matbud2020_01043.pdf |
| spellingShingle | Sitarz Mateusz Choińska Marta Hager Izabela Khelidj Abdelhafid Mechanical behaviour and permeability of geopolymer mortars MATEC Web of Conferences |
| title | Mechanical behaviour and permeability of geopolymer mortars |
| title_full | Mechanical behaviour and permeability of geopolymer mortars |
| title_fullStr | Mechanical behaviour and permeability of geopolymer mortars |
| title_full_unstemmed | Mechanical behaviour and permeability of geopolymer mortars |
| title_short | Mechanical behaviour and permeability of geopolymer mortars |
| title_sort | mechanical behaviour and permeability of geopolymer mortars |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/18/matecconf_matbud2020_01043.pdf |
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