Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/73783
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhu, Weiping | en_US |
dc.date.accessioned | 2018-04-11T04:03:03Z | |
dc.date.available | 2018-04-11T04:03:03Z | |
dc.date.issued | 2018 | - |
dc.identifier.citation | Zhu, W. (2018). Synthesis of alkali activated materials incorporating municipal solid waste incineration bottom ash. Doctoral thesis, Nanyang Technological University, Singapore. | en_US |
dc.identifier.uri | http://hdl.handle.net/10356/73783 | |
dc.description.abstract | Incineration bottom ash (IBA) is the ash residue after incineration of municipal solid waste. Instead of disposing of IBA in landfills or involving costly pre-treatments, this study explores the utilization of un-treated IBA as precursor and/or gas-forming agent to synthesize (lightweight) alkali-activated materials (AAMs) for civil engineering applications. Chemical structures and compositions of the resulting alkali-activated IBA (AA-IBA) binder were analysed by means of selective chemical extractions, X-ray powder diffraction (XRD), thermal gravimetric analysis (TGA), solid state nuclear magnetic resonance (NMR) spectroscopy with magic angle spinning (MAS) and Fourier-transform infrared (FTIR) spectroscopy. It was found that the AA-IBA binder mainly consists of calcium silicate hydrates and geopolymer gel. To enhance the utilization potential, IBA was classified into categories according to sizes and types (i.e. glass IBA, ferrous IBA and nonferrous IBA) for strategic utilizations. The glass IBA, rich in amorphous silica, is a suitable AAM precursor. Resulting alkali-activated glass IBA (AA-glass IBA) show compressive strength up to 70 MPa, sufficient for structural applications. The nonferrous IBA, containing more metallic aluminum, was used as gas-forming agent to aerate the AA-glass IBA. This strategic use of classified IBA resulted in lightweight aerated materials with higher strength-to-density ratio, and greater IBA utilization rate as compared to un-classified AA-IBA. | en_US |
dc.format.extent | 174 p. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Nanyang Technological University | en_US |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). | en_US |
dc.subject | DRNTU::Engineering::Civil engineering | en_US |
dc.title | Synthesis of alkali activated materials incorporating municipal solid waste incineration bottom ash | en_US |
dc.type | Thesis-Doctor of Philosophy | en_US |
dc.contributor.supervisor | En-Hua Yang | en_US |
dc.contributor.school | School of Civil and Environmental Engineering | en_US |
dc.description.degree | Doctor of Philosophy | en_US |
dc.contributor.supervisoremail | EHYANG@ntu.edu.sg | en_US |
item.fulltext | With Fulltext | - |
item.grantfulltext | restricted | - |
Appears in Collections: | CEE Theses |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
PhDThesis_ZhuWeiping_Submit-to-library.pdf Restricted Access | Thesis | 4.7 MB | Adobe PDF | View/Open |
Page view(s) 50
577
Updated on Mar 28, 2024
Download(s)
2
Updated on Mar 28, 2024
Google ScholarTM
Check
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.