Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair
This paper presents the experimental procedure to develop air lime-based injection grouts including polymeric superplasticizers, a water repellent agent and pozzolanic agents as additives. Research focuses on the development of grouts to improve various characteristics simultaneously combining diffe...
| Autores: | ; ; ; ; |
|---|---|
| Tipo de documento: | Artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad de Navarra |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/58923 |
| Acceso en línea: | https://hdl.handle.net/10171/58923 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Polymeric superplasticizers Zeta potential Adsorption isotherms Steric hindrance Grouts Injectability Hydrorepellency Freeze-thaw cycles |
| _version_ | 1878735382261006336 |
|---|---|
| author | Gonzalez-Sanchez, J.F. (Jesús Fidel)|||/items/bab21af5-7bcf-4861-93a8-e461da9208b3 |
| author2 | Tasci, B. (Burcu)|||/items/42f9d9cc-4348-44f1-90a1-60daf8f1615d Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 |
| author2_role | author author author author |
| author_browse | Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Gonzalez-Sanchez, J.F. (Jesús Fidel)|||/items/bab21af5-7bcf-4861-93a8-e461da9208b3 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Tasci, B. (Burcu)|||/items/42f9d9cc-4348-44f1-90a1-60daf8f1615d |
| author_facet | Gonzalez-Sanchez, J.F. (Jesús Fidel)|||/items/bab21af5-7bcf-4861-93a8-e461da9208b3 Tasci, B. (Burcu)|||/items/42f9d9cc-4348-44f1-90a1-60daf8f1615d Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 |
| author_role | author |
| collection | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| description | This paper presents the experimental procedure to develop air lime-based injection grouts including polymeric superplasticizers, a water repellent agent and pozzolanic agents as additives. Research focuses on the development of grouts to improve various characteristics simultaneously combining different additions and admixtures. Aiming to improve the injectability of the grouts, in this study different polymeric superplasticizers were added, namely polycarboxylated-ether derivative (PCE), polynaphthalene sulfonate (PNS) and condensate of melamine-formaldehyde sulfonate (SMFC). Sodium oleate was also used as a water repellent agent to reduce the water absorption. The enhancement of the strength and setting time was intended by using microsilica and metakaolin as pozzolanic mineral additions. Compatibility between the different admixtures and action mechanism of the different polymers were studied by means of zeta potential and adsorption isotherms measurements. Diverse grout mixtures were produced and investigated assessing their injectability, fluidity, stability, compressive strength, hydrophobicity and durability. This research leads to several suitable mixtures produced by using more than one component to enhance efficiency and to provide better performance of grouts. According to the results, the grout composed of air lime, metakaolin, sodium oleate and PCE was found the most effective composition improving the mechanical strength, injectability and hydrophobicity. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_7b983c7a33faeef9ab24fbee2edbc3d3 |
| institution | Universidad de Navarra |
| instname_str | Universidad de Navarra |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:dadun.unav.edu:10171/58923 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| publisher | MDPI AG |
| publisherStr | MDPI AG |
| reponame_str | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| spelling | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair Gonzalez-Sanchez, J.F. (Jesús Fidel)|||/items/bab21af5-7bcf-4861-93a8-e461da9208b3 Tasci, B. (Burcu)|||/items/42f9d9cc-4348-44f1-90a1-60daf8f1615d Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 Polymeric superplasticizers Zeta potential Adsorption isotherms Steric hindrance Grouts Injectability Hydrorepellency Freeze-thaw cycles This paper presents the experimental procedure to develop air lime-based injection grouts including polymeric superplasticizers, a water repellent agent and pozzolanic agents as additives. Research focuses on the development of grouts to improve various characteristics simultaneously combining different additions and admixtures. Aiming to improve the injectability of the grouts, in this study different polymeric superplasticizers were added, namely polycarboxylated-ether derivative (PCE), polynaphthalene sulfonate (PNS) and condensate of melamine-formaldehyde sulfonate (SMFC). Sodium oleate was also used as a water repellent agent to reduce the water absorption. The enhancement of the strength and setting time was intended by using microsilica and metakaolin as pozzolanic mineral additions. Compatibility between the different admixtures and action mechanism of the different polymers were studied by means of zeta potential and adsorption isotherms measurements. Diverse grout mixtures were produced and investigated assessing their injectability, fluidity, stability, compressive strength, hydrophobicity and durability. This research leads to several suitable mixtures produced by using more than one component to enhance efficiency and to provide better performance of grouts. According to the results, the grout composed of air lime, metakaolin, sodium oleate and PCE was found the most effective composition improving the mechanical strength, injectability and hydrophobicity. MDPI AG https://hdl.handle.net/10171/58923 |
| spellingShingle | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair Gonzalez-Sanchez, J.F. (Jesús Fidel)|||/items/bab21af5-7bcf-4861-93a8-e461da9208b3 Polymeric superplasticizers Zeta potential Adsorption isotherms Steric hindrance Grouts Injectability Hydrorepellency Freeze-thaw cycles |
| title | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair |
| title_full | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair |
| title_fullStr | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair |
| title_full_unstemmed | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair |
| title_short | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair |
| title_sort | Combination of polymeric superplasticizers, water repellents and pozzolanic agents to improve air lime-based grouts for historic masonry repair |
| topic | Polymeric superplasticizers Zeta potential Adsorption isotherms Steric hindrance Grouts Injectability Hydrorepellency Freeze-thaw cycles |
| topic_facet | Polymeric superplasticizers Zeta potential Adsorption isotherms Steric hindrance Grouts Injectability Hydrorepellency Freeze-thaw cycles |
| url | https://hdl.handle.net/10171/58923 |