Nikolić, Violeta M.

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Improving mechanical characteristics of lightweight geopolymers through mechanical activation of fly ash

Ivanović, Tijana G.; Komljenović, Miroslav M.; Džunuzović, Nataša M.; Nikolić, Violeta M.; Tanasijević, Gordana G.

(RILEM Publications S.A.R.L., Rovinj, Croatia, 2019)

TY  - CONF
AU  - Ivanović, Tijana G.
AU  - Komljenović, Miroslav M.
AU  - Džunuzović, Nataša M.
AU  - Nikolić, Violeta M.
AU  - Tanasijević, Gordana G.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3108
AB  - The present paper investigated the influence of mechanical activation of fly ash and various parameters, such as curing temperature and concentration of foaming agent (Al powder), on physical-mechanical characteristics of lightweight geopolymers. Prior to alkali activation, fly ash was mechanically activated in a high energy planetary ball mill. Lightweight geopolymers were obtained by mixing the mechanically activated fly ash with various amounts of Al powder and sodium silicate solution (SiO2/Na2O mass ratio of 1.5). Geopolymer paste samples were cured covered in plastic either at room temperature for 28 days or at elevated temperature (95 oC) for 4 hours. It was observed that the mechanical activation of fly ash resulted in a drastic increase of geopolymer compressive strength regardless of curing conditions, preserving the lightweight properties at the same time. The lightweight geopolymers based on mechanically activated fly ash might be used both in constructive and insulating applications.
PB  - RILEM Publications S.A.R.L., Rovinj, Croatia
C3  - International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) New Generation of Construction Materials
T1  - Improving mechanical characteristics of lightweight geopolymers through mechanical activation of fly ash
EP  - 565
SP  - 558
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3108
ER  - 
@conference{
author = "Ivanović, Tijana G. and Komljenović, Miroslav M. and Džunuzović, Nataša M. and Nikolić, Violeta M. and Tanasijević, Gordana G.",
year = "2019",
abstract = "The present paper investigated the influence of mechanical activation of fly ash and various parameters, such as curing temperature and concentration of foaming agent (Al powder), on physical-mechanical characteristics of lightweight geopolymers. Prior to alkali activation, fly ash was mechanically activated in a high energy planetary ball mill. Lightweight geopolymers were obtained by mixing the mechanically activated fly ash with various amounts of Al powder and sodium silicate solution (SiO2/Na2O mass ratio of 1.5). Geopolymer paste samples were cured covered in plastic either at room temperature for 28 days or at elevated temperature (95 oC) for 4 hours. It was observed that the mechanical activation of fly ash resulted in a drastic increase of geopolymer compressive strength regardless of curing conditions, preserving the lightweight properties at the same time. The lightweight geopolymers based on mechanically activated fly ash might be used both in constructive and insulating applications.",
publisher = "RILEM Publications S.A.R.L., Rovinj, Croatia",
journal = "International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) New Generation of Construction Materials",
title = "Improving mechanical characteristics of lightweight geopolymers through mechanical activation of fly ash",
pages = "565-558",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3108"
}
Ivanović, T. G., Komljenović, M. M., Džunuzović, N. M., Nikolić, V. M.,& Tanasijević, G. G.. (2019). Improving mechanical characteristics of lightweight geopolymers through mechanical activation of fly ash. in International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) New Generation of Construction Materials
RILEM Publications S.A.R.L., Rovinj, Croatia., 558-565.
https://hdl.handle.net/21.15107/rcub_rimsi_3108
Ivanović TG, Komljenović MM, Džunuzović NM, Nikolić VM, Tanasijević GG. Improving mechanical characteristics of lightweight geopolymers through mechanical activation of fly ash. in International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) New Generation of Construction Materials. 2019;:558-565.
https://hdl.handle.net/21.15107/rcub_rimsi_3108 .
Ivanović, Tijana G., Komljenović, Miroslav M., Džunuzović, Nataša M., Nikolić, Violeta M., Tanasijević, Gordana G., "Improving mechanical characteristics of lightweight geopolymers through mechanical activation of fly ash" in International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) New Generation of Construction Materials (2019):558-565,
https://hdl.handle.net/21.15107/rcub_rimsi_3108 .