Geopolymers: An option for the valorization of incinerator bottom ash derived “end of waste”

Lancellotti, Isabella; Cannio, Maria; Bollino, Flavia; Catauro, Michelina; Barbieri, Luisa; Leonelli, Cristina

doi:10.1016/j.ceramint.2014.10.008

Cited by 48 publications

(26 citation statements)

References 60 publications

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“…These strategies include the improvement of the energy efficiency, the use of bio-fuels and the replacement of limestone with other industrial by-products. Moreover, the clinker content can be reduced by using blast furnace slag, fly ash, natural pozzolans and silica fume [4][5][6]. Finally, new technologies can be applied, in order to make non-Portland cements, such as partially pre-hydrated C-S-H binders, belite-rich cements, magnesium oxycarbonate cements, magnesium silicate cements, calcium carbonate cements etc.…”

Section: Introductionmentioning

confidence: 99%

Geopolymer technology for application-oriented dense and lightened materials. Elaboration and characterization

Palmero

Formia

Antonaci

et al. 2015

Ceramics International

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Section: Introductionmentioning

confidence: 99%

Geopolymer technology for application-oriented dense and lightened materials. Elaboration and characterization

Palmero

Formia

Antonaci

et al. 2015

Ceramics International

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“…For geopolymers preparation, low-cost materials can be used, including waste materials that are not currently reused in other industrial sectors but are abundant and urgently need to be disposed, such as incinerator bottom ash, ladle slag, red mud, electroplating sludge, mine tailings, etc. [19][20][21][22]. In this preliminary research, the authors decided to use metakaolin as a reference material.…”

Section: Introductionmentioning

confidence: 99%

Addition of WEEE Glass to Metakaolin-Based Geopolymeric Binder: A Cytotoxicity Study

2017

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Waste Electrical and Electronic Equipment (WEEE) types of glass, including Cathode Ray Tube (CRT) glass, are now separately collected in European Union 28 (EU28) zone. Due to the high level of Pb and Ba in their compositions, this type of waste finds its way to the disposal. In the present research, a geopolymer matrix based on metakaolin is used to blend in fine powder panel and funnel glass from personal computer (PC) and television (TV) monitors. Such waste glass, which cannot be directed to glass melting furnaces, is safely incorporated into a geopolymer matrix. The consolidation of the geopolymeric matrix containing the waste glass was followed by pH and conductibility up to 28 days of curing. Scanning electron microscope equipped with energy dispersive spectroscopy (SEM/EDS) was used to obtain information on the microstructure of the consolidated products. Cytotoxicity tests helped the environmental evaluation of these materials.

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“…However, as mentioned by Payá et al [9] in the Handbook of Alkali-activated cements, mortars and concretes, the development of new precursors is necessary in order to propose this type of binder as cement for the future. Lancellotti et al [10] assessed the use of incinerator bottom ash in the production of alkaliactivated binders using alkaline solutions of concentrated NaOH and waterglass solutions.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and durability properties of alkali-activated mortar based on sugarcane bagasse ash and blast furnace slag

Pereira

Akasaki

Melges

et al. 2015

Ceramics International

109

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A. Pereira; Akasaki, JL.; J.L.P.Melges; Mitsuuchi Tashima, M.; Soriano Martinez, L.; Borrachero Rosado, MV.; Monzó Balbuena, JM.... (2015). Effect of sugarcane bagasse ash (SBA) added to alkali-activated blast furnace salg (BFS) AbstractSugarcane bagasse is an agricultural waste which can be transformed, for cementing purposes, into an interesting material by combustion. Specifically, the ash (SBA) obtained by autocombustion was used for preparing alkali-activated cements by blending blast furnace slag (BFS). SBA had a large amount of quartz; however, it reacted in high alkaline medium. Mixtures of BFS/SBA have been used for preparing alkali-activated mortars, by using NaOH (8M solution), sodium silicate (8M solution in Na + and SiO 2 /Na 2 O molar ratio of 0.5) and KOH (8M solution) as activating reagents. Replacements of 25, 33 and 50% of BFS by SBA were carried out and compressive strengths in the range 16-51 MPa were obtained after 90 curing days. Microstructural studies demonstrated that the hydration products formed in the activation of BFS are not significantly affected by the presence of SBA in the mixture. The durability of alkaliactivated mortars was compared to ordinary Portland cement (OPC) mortar in the following media: hydrochloric acid, acetic acid, ammonium chloride, sodium sulphate and magnesium sulphate. The behaviour of alkali-activated mortars with BFS and BFS/SBA was better than that found for plain OPC mortars, especially in ammonium chloride, acetic acid and sodium sulphate media. After 200 days of testing in ammonium chloride solution, the compressive strength loss for Portland cement mortar was about 83.3%. For the same test conditions, alkali-activated mortars presented a maximum reduction of 48.4%. The presence of SBA in alkali-activated BFS mortars did not produce any serious problems in durability. As a general conclusion, sugarcane bagasse ash (SBA) obtained by autocombustion showed good cementing properties as a mineral precursor blended with blast furnace slag (BFS) in alkali-activated systems.

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Geopolymers: An option for the valorization of incinerator bottom ash derived “end of waste”

Cited by 48 publications

References 60 publications

Geopolymer technology for application-oriented dense and lightened materials. Elaboration and characterization

Geopolymer technology for application-oriented dense and lightened materials. Elaboration and characterization

Addition of WEEE Glass to Metakaolin-Based Geopolymeric Binder: A Cytotoxicity Study

Mechanical and durability properties of alkali-activated mortar based on sugarcane bagasse ash and blast furnace slag

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