Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes
Abstract Alternatives to conventional Portland cement with a more sustainable appeal are increasingly recurrent. Among these are the Limestone Calcined Clay (LC3) systems, characterized by high replacement percentages of Portland clinker by calcined clay and limestone, materials widely available wo...
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| Format: | Article |
| Language: | English |
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Instituto Brasileiro do Concreto (IBRACON)
2023-06-01
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| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952024000100207&tlng=en |
| _version_ | 1797791455794692096 |
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| author | Laura Silvestro Artur Spat Ruviaro Francisco Roger Carneiro Ribeiro Philippe Jean Paul Gleize Ana Paula Kirchheim |
| author_facet | Laura Silvestro Artur Spat Ruviaro Francisco Roger Carneiro Ribeiro Philippe Jean Paul Gleize Ana Paula Kirchheim |
| author_sort | Laura Silvestro |
| collection | DOAJ |
| description | Abstract Alternatives to conventional Portland cement with a more sustainable appeal are increasingly recurrent. Among these are the Limestone Calcined Clay (LC3) systems, characterized by high replacement percentages of Portland clinker by calcined clay and limestone, materials widely available worldwide. A complete understanding of the rheological behavior of LC3 systems is necessary for the practical application of this type of cement to be consolidated. Furthermore, although not yet investigated, the incorporation of nanomaterials stands out as a promising alternative for accelerating reactions and enhancing the mechanical performance of these systems at early ages. This study investigated the incorporation of carbon nanotubes (CNT) contents from 0.05 to 0.125% in an LC3 system through rotational rheometry, isothermal calorimetry, compressive strength at 7 and 28 days, and X-ray diffraction. Although the CNT incorporation increased the dynamic yield stress and equivalent viscosity of the LC3 pastes, the content of 0.1 wt.% slightly increased and anticipated the occurrence of the main peak of the aluminates. Increases of up to 13.5% in compressive strength at 7 and 28 days of hydration were observed for a CNT content of 0.1 wt.%. |
| first_indexed | 2024-03-13T02:19:03Z |
| format | Article |
| id | doaj.art-6e86f8bae8dc4cecb5d0f9d5e202cd87 |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-03-13T02:19:03Z |
| publishDate | 2023-06-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-6e86f8bae8dc4cecb5d0f9d5e202cd872023-06-30T10:53:26ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952023-06-0117110.1590/s1983-41952024000100006Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubesLaura Silvestrohttps://orcid.org/0000-0002-6437-3047Artur Spat Ruviarohttps://orcid.org/0000-0003-0903-7646Francisco Roger Carneiro Ribeirohttps://orcid.org/0000-0001-8790-3023Philippe Jean Paul Gleizehttps://orcid.org/0000-0003-4029-9345Ana Paula Kirchheimhttps://orcid.org/0000-0002-8241-0331 Abstract Alternatives to conventional Portland cement with a more sustainable appeal are increasingly recurrent. Among these are the Limestone Calcined Clay (LC3) systems, characterized by high replacement percentages of Portland clinker by calcined clay and limestone, materials widely available worldwide. A complete understanding of the rheological behavior of LC3 systems is necessary for the practical application of this type of cement to be consolidated. Furthermore, although not yet investigated, the incorporation of nanomaterials stands out as a promising alternative for accelerating reactions and enhancing the mechanical performance of these systems at early ages. This study investigated the incorporation of carbon nanotubes (CNT) contents from 0.05 to 0.125% in an LC3 system through rotational rheometry, isothermal calorimetry, compressive strength at 7 and 28 days, and X-ray diffraction. Although the CNT incorporation increased the dynamic yield stress and equivalent viscosity of the LC3 pastes, the content of 0.1 wt.% slightly increased and anticipated the occurrence of the main peak of the aluminates. Increases of up to 13.5% in compressive strength at 7 and 28 days of hydration were observed for a CNT content of 0.1 wt.%.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952024000100207&tlng=enLC3carbon nanotubescompositesrheologyhydration |
| spellingShingle | Laura Silvestro Artur Spat Ruviaro Francisco Roger Carneiro Ribeiro Philippe Jean Paul Gleize Ana Paula Kirchheim Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes Revista IBRACON de Estruturas e Materiais LC3 carbon nanotubes composites rheology hydration |
| title | Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes |
| title_full | Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes |
| title_fullStr | Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes |
| title_full_unstemmed | Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes |
| title_short | Rheological behavior, hydration, and mechanical properties of LC3 systems with the incorporation of functionalized multi-walled carbon nanotubes |
| title_sort | rheological behavior hydration and mechanical properties of lc3 systems with the incorporation of functionalized multi walled carbon nanotubes |
| topic | LC3 carbon nanotubes composites rheology hydration |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952024000100207&tlng=en |
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