Process Parameters Affecting Compressive Strength of Ambient Cured Alkali Activated Fly Ash and Bottom Ash Concrete
By: Thakkar, Sonal
.
Contributor(s): Dave, Urmil.
Publisher: Mumbai ACC LTD 2020Edition: Vol.94(2), Feb.Description: 53-61p.Subject(s): Construction Engineering and Management (CEM)Online resources: Click here
In:
Indian Concrete JournalSummary: Due to rapid industrialisation, a large amount of industrial waste are produced which needs efficient and effective disposal mechanism. In this study, fly ash bottom ash combination was activated with sodium-based activators for preparation of alkali-activated concrete under ambient curing condition. Consistency and setting time of paste with fly ash bottom ash combination was determined. Process parameters which affect the compressive strength of alkali-activated concrete were identified. Microstructural studies were also undertaken to study the product developed due to alkali activation. Observations indicate that there was a decrease in compressive strength of alkali-activated concrete with the increase in bottom ash, while an increase in activator content leads to an increase in compressive strength. The experimental investigation also shows that an equal proportion of fly ash and bottom ash can be used for the development of concrete up to 25 MPa strength.
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Articles Abstract Database
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School of Engineering & Technology (PG) Archieval Section | Not for loan | 2021013 |
Due to rapid industrialisation, a large amount of industrial waste are produced which needs efficient and effective disposal mechanism. In this study, fly ash bottom ash combination was activated with sodium-based activators for preparation of alkali-activated concrete under ambient curing condition. Consistency and setting time of paste with fly ash bottom ash combination was determined. Process parameters which affect the compressive strength of alkali-activated concrete were identified. Microstructural studies were also undertaken to study the product developed due to alkali activation. Observations indicate that there was a decrease in compressive strength of alkali-activated concrete with the increase in bottom ash, while an increase in activator content leads to an increase in compressive strength. The experimental investigation also shows that an equal proportion of fly ash and bottom ash can be used for the development of concrete up to 25 MPa strength.
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