Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete
Cementitious materials, irrespective of their sources, play a vital role in cement hydration reaction in concrete. Hence, it is critical to understand how each supplement affects the early and later age properties of concrete. Maize Straw Ash (MSA), being a material with minimal consideration as a p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522009226 |
| _version_ | 1797798997268627456 |
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| author | Adekunle O. Aliu Oladimeji B. Olalusi Paul O. Awoyera Moses Kiliswa |
| author_facet | Adekunle O. Aliu Oladimeji B. Olalusi Paul O. Awoyera Moses Kiliswa |
| author_sort | Adekunle O. Aliu |
| collection | DOAJ |
| description | Cementitious materials, irrespective of their sources, play a vital role in cement hydration reaction in concrete. Hence, it is critical to understand how each supplement affects the early and later age properties of concrete. Maize Straw Ash (MSA), being a material with minimal consideration as a pozzolan for partial replacement of cement, was evaluated based on different researcher’s reports. A range of outcomes involving the use of maize straw ash as replacement materials in concrete were examined based on their impact on concrete in the early and later stages, and the findings were presented in addition to assisting in their future use. The impact of pozzolanic material on both mechanical and durability property were analysed, and how certain treatment methods influence the property of concrete in the early and later period. The data revealed that maize straw ash has comparable behaviour when given the same treatment technique before use, ability to increase strength over a long duration compared with other Agricultural waste (agro) materials, and likewise act as a void filler when concrete hardens to improve durability, with the usage of these materials for optimal strength not exceeding 20% replacement, shrinkage control not exceeding 30%, and 10–15% for good workability. At (500–800 °C calcination heat), the pozzolanic reaction produces good results. |
| first_indexed | 2024-03-13T04:12:19Z |
| format | Article |
| id | doaj.art-335df3271d894bc086542f1a2209929c |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:19Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-335df3271d894bc086542f1a2209929c2023-06-21T06:53:14ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01790Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concreteAdekunle O. Aliu0Oladimeji B. Olalusi1Paul O. Awoyera2Moses Kiliswa3Department of Civil Engineering, Structural Engineering & Computational Mechanics Group (SECM), University of KwaZulu-Natal, Durban, South Africa; Corresponding author.Department of Civil Engineering, Structural Engineering & Computational Mechanics Group (SECM), University of KwaZulu-Natal, Durban, South AfricaDepartment of Civil Engineering, Covenant University, Ota, NigeriaDepartment of Civil Engineering, Structural Engineering & Computational Mechanics Group (SECM), University of KwaZulu-Natal, Durban, South AfricaCementitious materials, irrespective of their sources, play a vital role in cement hydration reaction in concrete. Hence, it is critical to understand how each supplement affects the early and later age properties of concrete. Maize Straw Ash (MSA), being a material with minimal consideration as a pozzolan for partial replacement of cement, was evaluated based on different researcher’s reports. A range of outcomes involving the use of maize straw ash as replacement materials in concrete were examined based on their impact on concrete in the early and later stages, and the findings were presented in addition to assisting in their future use. The impact of pozzolanic material on both mechanical and durability property were analysed, and how certain treatment methods influence the property of concrete in the early and later period. The data revealed that maize straw ash has comparable behaviour when given the same treatment technique before use, ability to increase strength over a long duration compared with other Agricultural waste (agro) materials, and likewise act as a void filler when concrete hardens to improve durability, with the usage of these materials for optimal strength not exceeding 20% replacement, shrinkage control not exceeding 30%, and 10–15% for good workability. At (500–800 °C calcination heat), the pozzolanic reaction produces good results.http://www.sciencedirect.com/science/article/pii/S2214509522009226Maize straw ashPozzolanic activityPozzolanic reactivityAgro-wasteStrength propertiesVoid filler |
| spellingShingle | Adekunle O. Aliu Oladimeji B. Olalusi Paul O. Awoyera Moses Kiliswa Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete Case Studies in Construction Materials Maize straw ash Pozzolanic activity Pozzolanic reactivity Agro-waste Strength properties Void filler |
| title | Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete |
| title_full | Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete |
| title_fullStr | Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete |
| title_full_unstemmed | Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete |
| title_short | Evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete |
| title_sort | evaluation of pozzolanic reactivity of maize straw ash as a binder supplement in concrete |
| topic | Maize straw ash Pozzolanic activity Pozzolanic reactivity Agro-waste Strength properties Void filler |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522009226 |
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