Book
Use of Brown Coal Ash as a Replacement of Cement in Concrete Masonry Bricks
| العنوان: | Use of Brown Coal Ash as a Replacement of Cement in Concrete Masonry Bricks |
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| المؤلفون: | Law, D. W., Gunasekara, C., Setunge, S. |
| المصدر: | Lecture Notes in Civil Engineering ; Nanotechnology in Construction for Circular Economy ; page 23-25 ; ISSN 2366-2557 2366-2565 ; ISBN 9789819933297 9789819933303 |
| بيانات النشر: | Springer Nature Singapore |
| سنة النشر: | 2023 |
| الوصف: | Portland cement production is not regarded as environmentally friendly, because of its associated high carbon emissions, which are responsible for 5% of global emissions. An alternative is to substitute fly ash for Portland cement. Australia has an abundance of brown coal fly ash, as it is the main source of primary energy in the State of Victoria. Currently, the majority of this material is stored in landfills and currently there is no commercial use for it in the cement industry because brown coal fly ash cannot be used as a direct replacement material for Portland cement due to the high sulfur and calcium content and low aluminosilicate content. However, the potential exists to use brown coal fly ash as a geopolymeric material, but there remains a significant amount of research needed to be conducted. One possible application is the production of geopolymer concrete bricks. A research project was undertaken to investigate the use of brown coal fly ash from Latrobe Valley power stations in the manufacture of geopolymer masonry bricks. The research developed a detailed understanding of the fundamental chemistry behind the activation of the brown coal fly ash and the reaction mechanisms involved to enable the development of brown coal fly ash geopolymer concrete bricks. The research identified suitable manufacturing techniques to investigate relationships between compressive strength and processing parameters and to understand the reaction kinetics and microstructural developments. The first phase of the research determined the physical, chemical, and mineralogical properties of the Loy Yang and Yallourn fly ash samples to produce a 100% fly ash-based geopolymer mortar. Optimization of the Loy Yang and Yallourn geopolymer mortars was conducted to identify the chemical properties that were influential in the production of satisfactory geopolymer strength. The Loy Yang mortars were able to produce characteristic compressive strengths acceptable in load-bearing bricks (15 MPa), whereas the Yallourn mortars ... |
| نوع الوثيقة: | book part |
| اللغة: | unknown |
| ردمك: | 978-981-9933-29-7 978-981-9933-30-3 981-9933-29-3 981-9933-30-7 |
| DOI: | 10.1007/978-981-99-3330-3_4 |
| الاتاحة: | http://dx.doi.org/10.1007/978-981-99-3330-3_4 https://link.springer.com/content/pdf/10.1007/978-981-99-3330-3_4 |
| Rights: | https://creativecommons.org/licenses/by/4.0 ; https://creativecommons.org/licenses/by/4.0 |
| رقم الانضمام: | edsbas.12B84380 |
| قاعدة البيانات: | BASE |
| ردمك: | 9789819933297 9789819933303 9819933293 9819933307 |
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| DOI: | 10.1007/978-981-99-3330-3_4 |