Alkali-bonded ceramics with hierarchical tailored porosity

Landi, Elena; Medri, Valentina; Papa, Elettra; Dědeček, Jiřı́; Klein, Petr; Benito, Patricia; Vaccari, Angelo

doi:10.1016/j.clay.2012.09.027

Cited by 117 publications

(59 citation statements)

References 30 publications

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“…In Table 3 total porosity, modal pore diameter and median pore diameter are reported. The results account mostly for the intrinsic porosity of the geopolymer matrix in the range 0.0058-1 μm [33]. The pore size distributions for the metakaolin-based materials V2-Mk and V4-Mk are similar being about the 50% of accessible volume in both cases due to pore size ≤1 μm, with an evident most frequent size peak located at ≈0.46 and 0.41 μm (modal pore diameter).…”

Section: Porositymentioning

confidence: 76%

Production and characterization of lightweight vermiculite/geopolymer-based panels

et al. 2015

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Section: Porositymentioning

confidence: 76%

Production and characterization of lightweight vermiculite/geopolymer-based panels

et al. 2015

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“…The total porosity of the geopolymers prepared with distinct addi tions of hydrogen peroxide was then calculated following the sug gestions made by Landi et al (2013).…”

Section: Materials Characterizationmentioning

confidence: 99%

Waste glass from end-of-life fluorescent lamps as raw material in geopolymers

et al. 2016

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a b s t r a c tNowadays the stunning volume of generated wastes, the exhaustion of raw materials, and the disturbing greenhouse gases emission levels show that a paradigm shift is mandatory. In this context, the possibility of using wastes instead of virgin raw materials can mitigate the environmental problems related to wastes, while reducing the consumption of the Earth's natural resources. This innovative work reports the incorporation of unexplored waste glass coming from end of life fluorescent lamps into geopolymers.The influence of the waste glass incorporation level, NaOH molarity and curing conditions on the microstructure, physical and mechanical properties of the geopolymers was evaluated. Results demon strate that curing conditions are the most influential factor on the geopolymer characteristics, while the NaOH molarity is less important. Geopolymers containing 37.5% (wt) waste glass were successfully produced, showing compressive strength of 14 MPa (after 28 days of curing), suggesting the possibility of their use in non structural applications.Porous waste based geopolymers for novel applications were also fabricated.

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“…[12]; alkaliactivated cements [13,14], a large family of materials characterised by a significant content of aluminosilicate bonding phase. New alkali-bonded materials and relative application fields are more and more studied [15][16][17][18][19][20], so also increasing the perspective of recycling/reusing of waste materials of very different nature. However, no study reporting the chemical activation of calcium phosphates and aluminosilicates based mixed systems was found by the authors.…”

Section: Introductionmentioning

confidence: 99%