Characterisation of fly ash-based geopolymers activated with sodium silicate
Само за регистроване кориснике
2014
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The present work examines the effects of sodium silicate activating solution on the properties of fly ash-based geopolymers. Various geopolymers were synthesized utilizing fly ash, sodium silicate solution and NaOH. Moduli (mass ratio between SiO2 and Na2O) of sodium silicate solution were 0.5, 1.0, 1.5 and 2.0, and the reaction was performed at slightly elevated temperature. XRD and SEM/EDS studies combined with compressive strength testing demonstrated that fly ash activated with higher sodium silicate modulus was mechanically superior and more amorphous while in the systems with lower sodium silicate modulus, new crystalline zeolite phase such as faujasite was formed.
Кључне речи:
geopolymer / fly ash / sodium silicateИзвор:
The 46th International October Conference on Mining and Metallurgy, 2014, 305-308Издавач:
- University of Belgrade, Technical Faculty in Bor and Mining and Metallurgy Institute Bor, Serbia
Финансирање / пројекти:
- Геополимери - Развој технологије за конверзију индустријског отпада у функционалне материјале (RS-MESTD-Technological Development (TD or TR)-34026)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Nikolic, Violeta AU - Komljenović, Miroslav M AU - Baščarević, Zvezdana AU - Džunuzović, Nataša PY - 2014 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2993 AB - The present work examines the effects of sodium silicate activating solution on the properties of fly ash-based geopolymers. Various geopolymers were synthesized utilizing fly ash, sodium silicate solution and NaOH. Moduli (mass ratio between SiO2 and Na2O) of sodium silicate solution were 0.5, 1.0, 1.5 and 2.0, and the reaction was performed at slightly elevated temperature. XRD and SEM/EDS studies combined with compressive strength testing demonstrated that fly ash activated with higher sodium silicate modulus was mechanically superior and more amorphous while in the systems with lower sodium silicate modulus, new crystalline zeolite phase such as faujasite was formed. PB - University of Belgrade, Technical Faculty in Bor and Mining and Metallurgy Institute Bor, Serbia C3 - The 46th International October Conference on Mining and Metallurgy T1 - Characterisation of fly ash-based geopolymers activated with sodium silicate EP - 308 SP - 305 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2993 ER -
@conference{ author = "Nikolic, Violeta and Komljenović, Miroslav M and Baščarević, Zvezdana and Džunuzović, Nataša", year = "2014", abstract = "The present work examines the effects of sodium silicate activating solution on the properties of fly ash-based geopolymers. Various geopolymers were synthesized utilizing fly ash, sodium silicate solution and NaOH. Moduli (mass ratio between SiO2 and Na2O) of sodium silicate solution were 0.5, 1.0, 1.5 and 2.0, and the reaction was performed at slightly elevated temperature. XRD and SEM/EDS studies combined with compressive strength testing demonstrated that fly ash activated with higher sodium silicate modulus was mechanically superior and more amorphous while in the systems with lower sodium silicate modulus, new crystalline zeolite phase such as faujasite was formed.", publisher = "University of Belgrade, Technical Faculty in Bor and Mining and Metallurgy Institute Bor, Serbia", journal = "The 46th International October Conference on Mining and Metallurgy", title = "Characterisation of fly ash-based geopolymers activated with sodium silicate", pages = "308-305", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2993" }
Nikolic, V., Komljenović, M. M., Baščarević, Z.,& Džunuzović, N.. (2014). Characterisation of fly ash-based geopolymers activated with sodium silicate. in The 46th International October Conference on Mining and Metallurgy University of Belgrade, Technical Faculty in Bor and Mining and Metallurgy Institute Bor, Serbia., 305-308. https://hdl.handle.net/21.15107/rcub_rimsi_2993
Nikolic V, Komljenović MM, Baščarević Z, Džunuzović N. Characterisation of fly ash-based geopolymers activated with sodium silicate. in The 46th International October Conference on Mining and Metallurgy. 2014;:305-308. https://hdl.handle.net/21.15107/rcub_rimsi_2993 .
Nikolic, Violeta, Komljenović, Miroslav M, Baščarević, Zvezdana, Džunuzović, Nataša, "Characterisation of fly ash-based geopolymers activated with sodium silicate" in The 46th International October Conference on Mining and Metallurgy (2014):305-308, https://hdl.handle.net/21.15107/rcub_rimsi_2993 .