Abstract
The main focus of this study is the characterisation of the municipal solid waste incineration (MSWI) ashes and their influence on engineering properties of cement paste when part of Portland cement is replaced with ground MSWI ashes. Petrographic examinations were performed in order to identify chemical composition of ashes and to determine their contents. To evaluate the main side effect of ashes when used in cement, the creation of network of bubbles due to the presence of aluminium, ashes, and aluminium powder were submerged in high pH solution and the evolution of hydrogen gas was measured. Cement paste cylinders were cast with various amounts of mineral additions and their strength and durability were investigated. Analysis on the measured data demonstrated that the use of ashes as cement replacement has both beneficial and detrimental effects on the strength and durability caused by the filler effect and hydrogen gas development, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 345-364 |
| Number of pages | 20 |
| Journal | Road Materials and Pavement Design |
| Volume | 17 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2 Apr 2016 |
Bibliographical note
Publisher Copyright:© 2015 Taylor & Francis.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 11 Sustainable Cities and Communities -
SDG 12 Responsible Consumption and Production
Keywords
- MSWI ash
- cement
- hydrogen gas evolution
- metallic aluminium
- micro-filler effect
- petrographic examination
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