Durability of binders, mortars and concretes in aggressive environments is of crucial importance for their commercial application. In this paper the resistance to external sulfate attack of two different alkali-activated binders (AABs), based either on blast furnace slag (BFS) or fly ash/blast furnace slag (FA/BFS) blend, was compared with two different commercially available Portland cement (CEM II) blended either with BFS or with FA and BFS. Comparison of sulfate resistance was based on compressive strength testing (the loss of strength) of mortar samples exposed to sodium sulfate attack up to 180 days and samples cured under controlled conditions for the same period of time. Furthermore, the evolution of microstructure of alkali-activated binders and pH of sodium silicate solution during testing were also analyzed. Despite different gel chemistry being involved, both alkali-activated binders based either on BFS or FA/BFS blend showed excellent resistance to external sulfate attack a...nd even better than selected Portland cements tested under the same experimental conditions.
TY - CONF
AU - Komljenović, Miroslav M
AU - Džunuzović, Nataša
AU - Nikolić, Violeta
PY - 2018
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1129
AB - Durability of binders, mortars and concretes in aggressive environments is of crucial importance for their commercial application. In this paper the resistance to external sulfate attack of two different alkali-activated binders (AABs), based either on blast furnace slag (BFS) or fly ash/blast furnace slag (FA/BFS) blend, was compared with two different commercially available Portland cement (CEM II) blended either with BFS or with FA and BFS. Comparison of sulfate resistance was based on compressive strength testing (the loss of strength) of mortar samples exposed to sodium sulfate attack up to 180 days and samples cured under controlled conditions for the same period of time. Furthermore, the evolution of microstructure of alkali-activated binders and pH of sodium silicate solution during testing were also analyzed. Despite different gel chemistry being involved, both alkali-activated binders based either on BFS or FA/BFS blend showed excellent resistance to external sulfate attack and even better than selected Portland cements tested under the same experimental conditions.
PB - E D P Sciences, Cedex A
C3 - 8th Scientific-Technical Conference on Material Problems in Civil Engineering (Matbud'2018)
T1 - Resistance to external sulfate attack - Comparison of two alkali-activated binders
VL - 163
DO - 10.1051/matecconf/201816306001
ER -
@conference{
author = "Komljenović, Miroslav M and Džunuzović, Nataša and Nikolić, Violeta",
year = "2018",
abstract = "Durability of binders, mortars and concretes in aggressive environments is of crucial importance for their commercial application. In this paper the resistance to external sulfate attack of two different alkali-activated binders (AABs), based either on blast furnace slag (BFS) or fly ash/blast furnace slag (FA/BFS) blend, was compared with two different commercially available Portland cement (CEM II) blended either with BFS or with FA and BFS. Comparison of sulfate resistance was based on compressive strength testing (the loss of strength) of mortar samples exposed to sodium sulfate attack up to 180 days and samples cured under controlled conditions for the same period of time. Furthermore, the evolution of microstructure of alkali-activated binders and pH of sodium silicate solution during testing were also analyzed. Despite different gel chemistry being involved, both alkali-activated binders based either on BFS or FA/BFS blend showed excellent resistance to external sulfate attack and even better than selected Portland cements tested under the same experimental conditions.",
publisher = "E D P Sciences, Cedex A",
journal = "8th Scientific-Technical Conference on Material Problems in Civil Engineering (Matbud'2018)",
title = "Resistance to external sulfate attack - Comparison of two alkali-activated binders",
volume = "163",
doi = "10.1051/matecconf/201816306001"
}
Komljenović, M. M., Džunuzović, N.,& Nikolić, V.. (2018). Resistance to external sulfate attack - Comparison of two alkali-activated binders. in 8th Scientific-Technical Conference on Material Problems in Civil Engineering (Matbud'2018)
E D P Sciences, Cedex A., 163.
https://doi.org/10.1051/matecconf/201816306001
Komljenović MM, Džunuzović N, Nikolić V. Resistance to external sulfate attack - Comparison of two alkali-activated binders. in 8th Scientific-Technical Conference on Material Problems in Civil Engineering (Matbud'2018). 2018;163.
doi:10.1051/matecconf/201816306001 .
Komljenović, Miroslav M, Džunuzović, Nataša, Nikolić, Violeta, "Resistance to external sulfate attack - Comparison of two alkali-activated binders" in 8th Scientific-Technical Conference on Material Problems in Civil Engineering (Matbud'2018), 163 (2018),
https://doi.org/10.1051/matecconf/201816306001 . .
