Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials
Calcareous and siliceous CDW wastes from concrete and glass wastes when mixed in binary mixtures has been analyzed in this study. Fine CDW fractions (<5 mm) of different sorts are selected: siliceous waste (HsT), calcareous waste (HcG) and laminated glass waste. The binary mixtures HsT/glass and...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/21/6481 |
| _version_ | 1797512159276564480 |
|---|---|
| author | Raquel Vigil de la Villa Mencía Moisés Frías Rojas Sagrario Martínez-Ramírez Lucía Fernández-Carrasco Ernesto Villar Cociña Rosario García-Giménez |
| author_facet | Raquel Vigil de la Villa Mencía Moisés Frías Rojas Sagrario Martínez-Ramírez Lucía Fernández-Carrasco Ernesto Villar Cociña Rosario García-Giménez |
| author_sort | Raquel Vigil de la Villa Mencía |
| collection | DOAJ |
| description | Calcareous and siliceous CDW wastes from concrete and glass wastes when mixed in binary mixtures has been analyzed in this study. Fine CDW fractions (<5 mm) of different sorts are selected: siliceous waste (HsT), calcareous waste (HcG) and laminated glass waste. The binary mixtures HsT/glass and HcG/glass at mix-proportions of 1:1, 2:1 and 1:2, respectively, are analyzed with a range of characterization techniques (XRD, TG/DTA, SEM-EDX, NMR, FT-IR) in the pure pozzolan/lime system over a reaction time of 90 days. The results showed that the incorporation of highly reactive recycled glass modified the pozzolanic reaction of the binary mixtures with respect to each particular concrete waste (of low activity). The principal mineralogical phases of the reaction were calcite and C–S–H gel, the latter modifying the C/S and A/S ratios as a function of either the silica or the lime-based concrete waste and the glass content of the mixtures. A higher degree of polymerization, morphology, and sodium content of C-H-S gel formed when glass was added. |
| first_indexed | 2024-03-10T05:57:55Z |
| format | Article |
| id | doaj.art-898b2d3b8b5f4bad9467a608708ef50c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T05:57:55Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-898b2d3b8b5f4bad9467a608708ef50c2023-11-22T21:12:53ZengMDPI AGMaterials1996-19442021-10-011421648110.3390/ma14216481Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious MaterialsRaquel Vigil de la Villa Mencía0Moisés Frías Rojas1Sagrario Martínez-Ramírez2Lucía Fernández-Carrasco3Ernesto Villar Cociña4Rosario García-Giménez5Departamento de Geología y Geoquímica, Geomateriales Unidad Asociada CSIC-UAM, Universidad Autónoma de Madrid, 28049 Madrid, SpainEduardo Torroja Institute for Construction Science (IETcc-CSIC), 28033 Madrid, SpainInstitute for the Structure of Matter (IEM-CSIC), 28006 Madrid, SpainDepartment of Civil and Environmental Engineering, Barcelona TECH, Universitat Politécnica de Catalunya, 08034 Barcelona, SpainDepartment of Physics, Central University of Las Villas, Santa Clara 54830, Villa Clara, CubaDepartamento de Geología y Geoquímica, Geomateriales Unidad Asociada CSIC-UAM, Universidad Autónoma de Madrid, 28049 Madrid, SpainCalcareous and siliceous CDW wastes from concrete and glass wastes when mixed in binary mixtures has been analyzed in this study. Fine CDW fractions (<5 mm) of different sorts are selected: siliceous waste (HsT), calcareous waste (HcG) and laminated glass waste. The binary mixtures HsT/glass and HcG/glass at mix-proportions of 1:1, 2:1 and 1:2, respectively, are analyzed with a range of characterization techniques (XRD, TG/DTA, SEM-EDX, NMR, FT-IR) in the pure pozzolan/lime system over a reaction time of 90 days. The results showed that the incorporation of highly reactive recycled glass modified the pozzolanic reaction of the binary mixtures with respect to each particular concrete waste (of low activity). The principal mineralogical phases of the reaction were calcite and C–S–H gel, the latter modifying the C/S and A/S ratios as a function of either the silica or the lime-based concrete waste and the glass content of the mixtures. A higher degree of polymerization, morphology, and sodium content of C-H-S gel formed when glass was added.https://www.mdpi.com/1996-1944/14/21/6481CDW waste mixpozzolan reactivityglasshydrated phasesevolution |
| spellingShingle | Raquel Vigil de la Villa Mencía Moisés Frías Rojas Sagrario Martínez-Ramírez Lucía Fernández-Carrasco Ernesto Villar Cociña Rosario García-Giménez Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials Materials CDW waste mix pozzolan reactivity glass hydrated phases evolution |
| title | Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials |
| title_full | Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials |
| title_fullStr | Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials |
| title_full_unstemmed | Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials |
| title_short | Reactivity of Binary Construction and Demolition Waste Mix as Supplementary Cementitious Materials |
| title_sort | reactivity of binary construction and demolition waste mix as supplementary cementitious materials |
| topic | CDW waste mix pozzolan reactivity glass hydrated phases evolution |
| url | https://www.mdpi.com/1996-1944/14/21/6481 |
| work_keys_str_mv | AT raquelvigildelavillamencia reactivityofbinaryconstructionanddemolitionwastemixassupplementarycementitiousmaterials AT moisesfriasrojas reactivityofbinaryconstructionanddemolitionwastemixassupplementarycementitiousmaterials AT sagrariomartinezramirez reactivityofbinaryconstructionanddemolitionwastemixassupplementarycementitiousmaterials AT luciafernandezcarrasco reactivityofbinaryconstructionanddemolitionwastemixassupplementarycementitiousmaterials AT ernestovillarcocina reactivityofbinaryconstructionanddemolitionwastemixassupplementarycementitiousmaterials AT rosariogarciagimenez reactivityofbinaryconstructionanddemolitionwastemixassupplementarycementitiousmaterials |