Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements
This study aims to evaluate the influence of low-grade local materials as clinker substitute in ternary cements, with calcined clay (30 wt%) and limestone (15 wt%), also known as LC³ cements. A coal mining waste (based on 35 wt% kaolinite content, AR) and a dolomitic limestone (LLS) were compared to...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509521002916 |
| _version_ | 1828953494540779520 |
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| author | C.S. Malacarne M.A. Longhi M.R.C. Silva J.P. Gonçalves E.D. Rodríguez A.P. Kirchheim |
| author_facet | C.S. Malacarne M.A. Longhi M.R.C. Silva J.P. Gonçalves E.D. Rodríguez A.P. Kirchheim |
| author_sort | C.S. Malacarne |
| collection | DOAJ |
| description | This study aims to evaluate the influence of low-grade local materials as clinker substitute in ternary cements, with calcined clay (30 wt%) and limestone (15 wt%), also known as LC³ cements. A coal mining waste (based on 35 wt% kaolinite content, AR) and a dolomitic limestone (LLS) were compared to more pure materials such as natural clay (constituted by 83% kaolinite content, NC) and high-grade limestone (HLS), respectively. LC³ cements were compared to reference system (45 wt% quartz filler instead of limestone and calcined clays), as well as a fly ash blended cement (40 wt% fly ash, 40FA). Hydration kinetics, water demand, plastic viscosity, and yield stress were evaluated in a fresh state. The fineness of the calcined clays and limestone had a greater impact on the water demand and thixotropy of the pastes than their mineralogical compositions. However, the higher kaolinite content of NC led to higher pozzolanic activity, greater formation of carboaluminate type phases, and compressive strength than LC3 cements with AR. The HLS and LLS had similar impact on the proprieties assessed despite their different mineralogical composition. Thus, both low-grade materials are feasible as raw materials for the production of LC³ type cements with similar performance when compared to conventional cements. |
| first_indexed | 2024-12-14T07:12:20Z |
| format | Article |
| id | doaj.art-7542b1ca824445cc8650c8b909e52c31 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-12-14T07:12:20Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-7542b1ca824445cc8650c8b909e52c312022-12-21T23:11:47ZengElsevierCase Studies in Construction Materials2214-50952021-12-0115e00776Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cementsC.S. Malacarne0M.A. Longhi1M.R.C. Silva2J.P. Gonçalves3E.D. Rodríguez4A.P. Kirchheim5Postgraduate Program in Civil Engineering: Construction and Infrastructure, Building Innovation Research Unit (NORIE/UFRGS), Federal University of Rio Grande do Sul (UFRGS), Av. Osvaldo Aranha, 99/706, CEP: 90035-190 Porto Alegre, RS, BrazilPostgraduate Program in Civil Engineering: Construction and Infrastructure, Building Innovation Research Unit (NORIE/UFRGS), Federal University of Rio Grande do Sul (UFRGS), Av. Osvaldo Aranha, 99/706, CEP: 90035-190 Porto Alegre, RS, Brazil; Corresponding author.Postgraduate Program in Civil Engineering: Construction and Infrastructure, Building Innovation Research Unit (NORIE/UFRGS), Federal University of Rio Grande do Sul (UFRGS), Av. Osvaldo Aranha, 99/706, CEP: 90035-190 Porto Alegre, RS, BrazilEscola Politécnica, Centro Interdisciplinar de Energia e Ambiente (CIENAM), Universidade Federal da Bahia (UFBA), Rua Aristides Novis, 02, Campus da Federação, Salvador CEP: 40210-630, BrazilDepartamento de Estruturas e Construção Civil (DECC), Universidade Federal de Santa Maria (UFSM), Santa Maria CEP: 97105-900, BrazilPostgraduate Program in Civil Engineering: Construction and Infrastructure, Building Innovation Research Unit (NORIE/UFRGS), Federal University of Rio Grande do Sul (UFRGS), Av. Osvaldo Aranha, 99/706, CEP: 90035-190 Porto Alegre, RS, Brazil; Departamento de Engenharia Civil (DECIV), Núcleo Orientado para a Inovação da Construção, Universidade Federal do Rio Grande do Sul (NORIE/UFRGS), Av. Osvaldo Aranha, 99, Porto Alegre CEP 90035-190, Brazil; Corresponding author at: Postgraduate Program in Civil Engineering: Construction and Infrastructure, Building Innovation Research Unit (NORIE/UFRGS), Federal University of Rio Grande do Sul (UFRGS), Av. Osvaldo Aranha, 99/706, CEP: 90035-190 Porto Alegre, RS, Brazil.This study aims to evaluate the influence of low-grade local materials as clinker substitute in ternary cements, with calcined clay (30 wt%) and limestone (15 wt%), also known as LC³ cements. A coal mining waste (based on 35 wt% kaolinite content, AR) and a dolomitic limestone (LLS) were compared to more pure materials such as natural clay (constituted by 83% kaolinite content, NC) and high-grade limestone (HLS), respectively. LC³ cements were compared to reference system (45 wt% quartz filler instead of limestone and calcined clays), as well as a fly ash blended cement (40 wt% fly ash, 40FA). Hydration kinetics, water demand, plastic viscosity, and yield stress were evaluated in a fresh state. The fineness of the calcined clays and limestone had a greater impact on the water demand and thixotropy of the pastes than their mineralogical compositions. However, the higher kaolinite content of NC led to higher pozzolanic activity, greater formation of carboaluminate type phases, and compressive strength than LC3 cements with AR. The HLS and LLS had similar impact on the proprieties assessed despite their different mineralogical composition. Thus, both low-grade materials are feasible as raw materials for the production of LC³ type cements with similar performance when compared to conventional cements.http://www.sciencedirect.com/science/article/pii/S2214509521002916SustainabilityTernary cementWasteCoal mining residue |
| spellingShingle | C.S. Malacarne M.A. Longhi M.R.C. Silva J.P. Gonçalves E.D. Rodríguez A.P. Kirchheim Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements Case Studies in Construction Materials Sustainability Ternary cement Waste Coal mining residue |
| title | Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements |
| title_full | Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements |
| title_fullStr | Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements |
| title_full_unstemmed | Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements |
| title_short | Influence of low-grade materials as clinker substitute on the rheological behavior, hydration and mechanical performance of ternary cements |
| title_sort | influence of low grade materials as clinker substitute on the rheological behavior hydration and mechanical performance of ternary cements |
| topic | Sustainability Ternary cement Waste Coal mining residue |
| url | http://www.sciencedirect.com/science/article/pii/S2214509521002916 |
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