Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis
Supplementary cementitious materials (SCMs), such as fly ash, blast furnace slag, rice husk ash (RHA), and sugarcane bagasse ash (SBA), are increasingly used to promote sustainable construction practices. However, understanding how the chemical composition, fineness, reactive phases, and pore soluti...
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Croatian Society of Chemical Engineers
2025-04-01
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| Series: | Chemical and Biochemical Engineering Quarterly |
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| Online Access: | http://silverstripe.fkit.hr/cabeq/assets/Uploads/03-1-2025.pdf |
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| author | N. S. Ajeesh Kumar K. L. Radhika |
| author_facet | N. S. Ajeesh Kumar K. L. Radhika |
| author_sort | N. S. Ajeesh Kumar |
| collection | DOAJ |
| description | Supplementary cementitious materials (SCMs), such as fly ash, blast furnace slag, rice husk ash (RHA), and sugarcane bagasse ash (SBA), are increasingly used to promote sustainable construction practices. However, understanding how the chemical composition, fineness, reactive phases, and pore solution content of SCMs affect the reaction process and hydration of cement is challenging. Researchers are developing models, including thermodynamic modelling (TDM), to better understand these effects. TDM is a useful tool for predicting the composition of pore solution and understanding the composition of hydrated cement and SCMs. This study investigates two types of ordinary Portland cement (OPC1 and OPC II) with varying chemical and mineral compositions mixed with two SCMs (RHA and SBA). Using TDM, the impact of cement content on hydrate generation in binary mixes is studied. The results revealed that OPC l and OPC ll hydration models predicted CSH gel, ettringite, hydrotalcite, calcite, and portlandite. In comparison to OPC1, OPC II predicts 21 % more CSH gel and 25 % less hydrogarnet. The study also found that jennite-like CSH transforms into tobermorite-like CSH with an in crease in RHA, and a decrease in portlandite was observed in SBA blended systems. The TDM results were validated using experimental data, providing valuable insights into the type and composition of hydrates that develop during cement hydration and its blends with SCMs. |
| format | Article |
| id | doaj-art-0d224161ef6b4d2cb78a8c20cb8e6a2d |
| institution | OA Journals |
| issn | 0352-9568 1846-5153 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Croatian Society of Chemical Engineers |
| record_format | Article |
| series | Chemical and Biochemical Engineering Quarterly |
| spelling | doaj-art-0d224161ef6b4d2cb78a8c20cb8e6a2d2025-08-20T02:19:16ZengCroatian Society of Chemical EngineersChemical and Biochemical Engineering Quarterly0352-95681846-51532025-04-01391293610.15255/CABEQ.2024.2339Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration AnalysisN. S. Ajeesh Kumar0K. L. Radhika1Department of Civil Engineering, University College of Engineering, Osmania University, Hyderabad, Telangana, IndiaDepartment of Civil Engineering, University College of Engineering, Osmania University, Hyderabad, Telangana, IndiaSupplementary cementitious materials (SCMs), such as fly ash, blast furnace slag, rice husk ash (RHA), and sugarcane bagasse ash (SBA), are increasingly used to promote sustainable construction practices. However, understanding how the chemical composition, fineness, reactive phases, and pore solution content of SCMs affect the reaction process and hydration of cement is challenging. Researchers are developing models, including thermodynamic modelling (TDM), to better understand these effects. TDM is a useful tool for predicting the composition of pore solution and understanding the composition of hydrated cement and SCMs. This study investigates two types of ordinary Portland cement (OPC1 and OPC II) with varying chemical and mineral compositions mixed with two SCMs (RHA and SBA). Using TDM, the impact of cement content on hydrate generation in binary mixes is studied. The results revealed that OPC l and OPC ll hydration models predicted CSH gel, ettringite, hydrotalcite, calcite, and portlandite. In comparison to OPC1, OPC II predicts 21 % more CSH gel and 25 % less hydrogarnet. The study also found that jennite-like CSH transforms into tobermorite-like CSH with an in crease in RHA, and a decrease in portlandite was observed in SBA blended systems. The TDM results were validated using experimental data, providing valuable insights into the type and composition of hydrates that develop during cement hydration and its blends with SCMs.http://silverstripe.fkit.hr/cabeq/assets/Uploads/03-1-2025.pdfcementhydrationmodellingsustainable concrete-making materials |
| spellingShingle | N. S. Ajeesh Kumar K. L. Radhika Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis Chemical and Biochemical Engineering Quarterly cement hydration modelling sustainable concrete-making materials |
| title | Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis |
| title_full | Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis |
| title_fullStr | Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis |
| title_full_unstemmed | Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis |
| title_short | Thermodynamic Modeling of Binary Binders with Agricultural Residues for Hydration Analysis |
| title_sort | thermodynamic modeling of binary binders with agricultural residues for hydration analysis |
| topic | cement hydration modelling sustainable concrete-making materials |
| url | http://silverstripe.fkit.hr/cabeq/assets/Uploads/03-1-2025.pdf |
| work_keys_str_mv | AT nsajeeshkumar thermodynamicmodelingofbinarybinderswithagriculturalresiduesforhydrationanalysis AT klradhika thermodynamicmodelingofbinarybinderswithagriculturalresiduesforhydrationanalysis |