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Experimental study on municipal solid waste incineration ash micro-powder as concrete admixture
- Source :
- Reviews on Advanced Materials Science, Vol 63, Iss 1, Pp pp. 417-429 (2024)
- Publication Year :
- 2024
- Publisher :
- De Gruyter, 2024.
-
Abstract
- To improve the utilization rate of municipal solid waste incineration (MSWI) ash and achieve resource recycling, this article conducted research on grinding MSWI ash into fine powder for use as a concrete admixture. Initially, the physical and chemical properties of the MSWI ash micro-powder were tested. Subsequently, different amounts of MSWI ash powder concrete were prepared. The macro and micro properties of the concrete were then tested. Finally, a life cycle assessment was utilized to evaluate and compare ordinary concrete with MSWI ash micro-powder concrete. The results indicate that the chemical composition of the MSWI ash micro-powder is similar to that of cement clinker. It exhibits potential hydraulicity and a slow hydration reaction, making it an active admixture suitable for concrete raw materials. With the increasing proportion of MSWI ash micro-powder, the rate of hydration reaction in concrete slows down, resulting in decreased mechanical properties. The microhardness value of the hardened cement paste in MSWI ash micro-powder concrete is lower than that of ordinary concrete. Moreover, the addition of MSWI ash micro-powder helps mitigate the environmental impact of concrete in terms of non-biological energy loss and CO2 emissions.
Details
- Language :
- English
- ISSN :
- 16058127
- Volume :
- 63
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Reviews on Advanced Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.80c8a56f73204dae88de0cfacd2b04f9
- Document Type :
- article
- Full Text :
- https://doi.org/10.1515/rams-2024-0027