TY  - JOUR
AU  - Martinović, Sanja
AU  - Majstorović, Jelena
AU  - Vidojković, Velislav
AU  - Volkov-Husović, Tatjana
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1631
AB  - In the recent decades, the use of unshaped monolithic refractories has been increasing greatly because of their significant advantages over other shaped refractory bricks of the same class. A low cement high alumina castable was synthesized and sintered at 1300°C in order to investigate thermal and mechanical properties, as well as thermal shock behavior. The water quench test was applied as an experimental method for thermal stability testing. Modification of the water quench test was performed by additional monitoring of the samples behavior during the water quench test such as implementation of image analysis and ultrasonic measurements. The image analysis program was applied on samples in order to measure the level of surface damage before and during the water quench test. Ultrasonic measurements were performed with the aim to measure the Young modulus of elasticity during the testing. Strength deterioration of the samples was calculated by the model based on ultrasonic velocity changes during the water quench test. The influence of monitoring the damage level before and during the quench experiment and its influence on thermal shock behavior will be discussed.
AB  - Poslednjih decenija neoblikovani monolitni vatrostalni materijali imaju sve širu primenu zbog brojnih prednosti u odnosu na oblikovane vatrostalne opeke iste klase. U ovom radu ispitivane su termičke i mehaničke osobine i ponašanje pri termošoku niskocementnog visokoaluminatnog vatrostalnog betona koji je sintetizovan, a zatim sinterovan na 1300ºC. Kao eksperimentalni metod za ispitivanje termostabilnosti betona primenjen je modifikovan test klasične metode ispitivanja naglim hlađenjem u vodi koji se sastojao u dodatnom praćenju ponašanja uzoraka prilikom termošoka implementacijom analize slike i ultrazvučnih merenja. U cilju praćenja stepena oštećenja površine pre i tokom testa na termostabilnost, korišćen je softverski program za analizu slike, a ultrazvučnim merenjima promena Jungovog modula elastičnosti. Pad čvrstoće uzoraka izračunat je pomoću modela na bazi promene brzine ultrazvuka tokom testiranja uzoraka na termošok. U ovom radu biće diskutovan uticaj praćenja stepena oštećenja na ponašanje materijala pre i tokom testiranja uzoraka na termošok.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - Influence of the damage level during quenching on thermal shock behavior of low cement castable
EP  - 219
IS  - 2
SP  - 211
VL  - 42
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1631
ER  - 

@article{
author = "Martinović, Sanja and Majstorović, Jelena and Vidojković, Velislav and Volkov-Husović, Tatjana",
year = "2010",
abstract = "In the recent decades, the use of unshaped monolithic refractories has been increasing greatly because of their significant advantages over other shaped refractory bricks of the same class. A low cement high alumina castable was synthesized and sintered at 1300°C in order to investigate thermal and mechanical properties, as well as thermal shock behavior. The water quench test was applied as an experimental method for thermal stability testing. Modification of the water quench test was performed by additional monitoring of the samples behavior during the water quench test such as implementation of image analysis and ultrasonic measurements. The image analysis program was applied on samples in order to measure the level of surface damage before and during the water quench test. Ultrasonic measurements were performed with the aim to measure the Young modulus of elasticity during the testing. Strength deterioration of the samples was calculated by the model based on ultrasonic velocity changes during the water quench test. The influence of monitoring the damage level before and during the quench experiment and its influence on thermal shock behavior will be discussed., Poslednjih decenija neoblikovani monolitni vatrostalni materijali imaju sve širu primenu zbog brojnih prednosti u odnosu na oblikovane vatrostalne opeke iste klase. U ovom radu ispitivane su termičke i mehaničke osobine i ponašanje pri termošoku niskocementnog visokoaluminatnog vatrostalnog betona koji je sintetizovan, a zatim sinterovan na 1300ºC. Kao eksperimentalni metod za ispitivanje termostabilnosti betona primenjen je modifikovan test klasične metode ispitivanja naglim hlađenjem u vodi koji se sastojao u dodatnom praćenju ponašanja uzoraka prilikom termošoka implementacijom analize slike i ultrazvučnih merenja. U cilju praćenja stepena oštećenja površine pre i tokom testa na termostabilnost, korišćen je softverski program za analizu slike, a ultrazvučnim merenjima promena Jungovog modula elastičnosti. Pad čvrstoće uzoraka izračunat je pomoću modela na bazi promene brzine ultrazvuka tokom testiranja uzoraka na termošok. U ovom radu biće diskutovan uticaj praćenja stepena oštećenja na ponašanje materijala pre i tokom testiranja uzoraka na termošok.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "Influence of the damage level during quenching on thermal shock behavior of low cement castable",
pages = "219-211",
number = "2",
volume = "42",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1631"
}

Martinović, S., Majstorović, J., Vidojković, V.,& Volkov-Husović, T.. (2010). Influence of the damage level during quenching on thermal shock behavior of low cement castable. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 42(2), 211-219.
https://hdl.handle.net/21.15107/rcub_technorep_1631

Martinović S, Majstorović J, Vidojković V, Volkov-Husović T. Influence of the damage level during quenching on thermal shock behavior of low cement castable. in Science of Sintering. 2010;42(2):211-219.
https://hdl.handle.net/21.15107/rcub_technorep_1631 .

Martinović, Sanja, Majstorović, Jelena, Vidojković, Velislav, Volkov-Husović, Tatjana, "Influence of the damage level during quenching on thermal shock behavior of low cement castable" in Science of Sintering, 42, no. 2 (2010):211-219,
https://hdl.handle.net/21.15107/rcub_technorep_1631 .

TY  - JOUR
AU  - Martinović, Sanja
AU  - Majstorović, Jelena
AU  - Vidojković, Velislav
AU  - Volkov-Husović, Tatjana
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1540
AB  - Low cement high alumina castable was synthesized, cured, and then sintered at 1100 degrees C for 3 hours. Water quench test was used as an experimental method for thermal stability testing. Image analysis program was applied in order to measure the damage to the samples at the sutface and in the bulk before and during the water quench test. Ultrasonic measurements were carried out with the aim of measuring the changes of ultrasonic velocity. Strength degradation of the samples was calculated by using the model based on ultrasonic velocity changes during water quench test. Also, the strength of the samples before and during water quench test was measured by standard laboratory procedure. The model for prediction of strength degradation is presented.
PB  - University of Chemistry and Technology, Prague
T2  - Ceramics - Silikaty
T1  - Modeling of strength degradation during water quench test of low cement high alumina castable
EP  - 175
IS  - 2
SP  - 169
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1540
ER  - 

@article{
author = "Martinović, Sanja and Majstorović, Jelena and Vidojković, Velislav and Volkov-Husović, Tatjana",
year = "2010",
abstract = "Low cement high alumina castable was synthesized, cured, and then sintered at 1100 degrees C for 3 hours. Water quench test was used as an experimental method for thermal stability testing. Image analysis program was applied in order to measure the damage to the samples at the sutface and in the bulk before and during the water quench test. Ultrasonic measurements were carried out with the aim of measuring the changes of ultrasonic velocity. Strength degradation of the samples was calculated by using the model based on ultrasonic velocity changes during water quench test. Also, the strength of the samples before and during water quench test was measured by standard laboratory procedure. The model for prediction of strength degradation is presented.",
publisher = "University of Chemistry and Technology, Prague",
journal = "Ceramics - Silikaty",
title = "Modeling of strength degradation during water quench test of low cement high alumina castable",
pages = "175-169",
number = "2",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1540"
}

Martinović, S., Majstorović, J., Vidojković, V.,& Volkov-Husović, T.. (2010). Modeling of strength degradation during water quench test of low cement high alumina castable. in Ceramics - Silikaty
University of Chemistry and Technology, Prague., 54(2), 169-175.
https://hdl.handle.net/21.15107/rcub_technorep_1540

Martinović S, Majstorović J, Vidojković V, Volkov-Husović T. Modeling of strength degradation during water quench test of low cement high alumina castable. in Ceramics - Silikaty. 2010;54(2):169-175.
https://hdl.handle.net/21.15107/rcub_technorep_1540 .

Martinović, Sanja, Majstorović, Jelena, Vidojković, Velislav, Volkov-Husović, Tatjana, "Modeling of strength degradation during water quench test of low cement high alumina castable" in Ceramics - Silikaty, 54, no. 2 (2010):169-175,
https://hdl.handle.net/21.15107/rcub_technorep_1540 .

TY  - JOUR
AU  - Martinović, Sanja
AU  - Majstorović, Jelena
AU  - Vidojković, Velislav
AU  - Volkov-Husović, Tatjana
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1445
AB  - The low cement high alumina castable (LCC) studied in this paper was synthesised, cured and then treated at different sintering temperatures. Since any inhomogeneity introduced during the castable preparation can remain inside the material degrading its properties and therefore the quality during service life, particular attention was given to the processing procedure in order to produce the material with the optimum characteristics. Composition of the castable regarding particle size distribution was adjusted according to the Andreassen's packing model. The samples were sintered at 1100, 1300 and 1600°C for three hours. Influence of the different sintering temperatures on the castable properties is discussed. Compressive and flexural strengths were determined by destructive testing method, while the water immersion method was used for determination of the bulk density and the water absorption. Changes of elastic properties and microstructure (porosity) were observed by the non-destructive testing methods, ultrasonic measurements and image analysis. Based on the results, it can be concluded that sintering temperature has strong influence on the properties of the LCC. Exceptionally good properties were obtained for the sample sintered at 1600°C, but it should be highlighted that the samples treated at 1100 and 1300°C were provided with good properties, too. This should not be neglected because of the energy saving importance, in cases where the material sintered at lower temperature satisfies the application requirements. .
PB  - University of Novi Sad
T2  - Processing and Application of Ceramics
T1  - Preparation and properties of low cement castable sintered at different temperatures
EP  - 196
IS  - 4
SP  - 191
VL  - 3
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1445
ER  - 

@article{
author = "Martinović, Sanja and Majstorović, Jelena and Vidojković, Velislav and Volkov-Husović, Tatjana",
year = "2009",
abstract = "The low cement high alumina castable (LCC) studied in this paper was synthesised, cured and then treated at different sintering temperatures. Since any inhomogeneity introduced during the castable preparation can remain inside the material degrading its properties and therefore the quality during service life, particular attention was given to the processing procedure in order to produce the material with the optimum characteristics. Composition of the castable regarding particle size distribution was adjusted according to the Andreassen's packing model. The samples were sintered at 1100, 1300 and 1600°C for three hours. Influence of the different sintering temperatures on the castable properties is discussed. Compressive and flexural strengths were determined by destructive testing method, while the water immersion method was used for determination of the bulk density and the water absorption. Changes of elastic properties and microstructure (porosity) were observed by the non-destructive testing methods, ultrasonic measurements and image analysis. Based on the results, it can be concluded that sintering temperature has strong influence on the properties of the LCC. Exceptionally good properties were obtained for the sample sintered at 1600°C, but it should be highlighted that the samples treated at 1100 and 1300°C were provided with good properties, too. This should not be neglected because of the energy saving importance, in cases where the material sintered at lower temperature satisfies the application requirements. .",
publisher = "University of Novi Sad",
journal = "Processing and Application of Ceramics",
title = "Preparation and properties of low cement castable sintered at different temperatures",
pages = "196-191",
number = "4",
volume = "3",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1445"
}

Martinović, S., Majstorović, J., Vidojković, V.,& Volkov-Husović, T.. (2009). Preparation and properties of low cement castable sintered at different temperatures. in Processing and Application of Ceramics
University of Novi Sad., 3(4), 191-196.
https://hdl.handle.net/21.15107/rcub_technorep_1445

Martinović S, Majstorović J, Vidojković V, Volkov-Husović T. Preparation and properties of low cement castable sintered at different temperatures. in Processing and Application of Ceramics. 2009;3(4):191-196.
https://hdl.handle.net/21.15107/rcub_technorep_1445 .

Martinović, Sanja, Majstorović, Jelena, Vidojković, Velislav, Volkov-Husović, Tatjana, "Preparation and properties of low cement castable sintered at different temperatures" in Processing and Application of Ceramics, 3, no. 4 (2009):191-196,
https://hdl.handle.net/21.15107/rcub_technorep_1445 .