TY  - JOUR
AU  - Tokalic, R.
AU  - Marinkovic, S.
AU  - Trifunovic, P.
AU  - Dević, Gordana
AU  - Zildzovic, S.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1303
AB  - The paper describes an investigation into the use of three power plant wastes: fly ash, flue gas desulphurization gypsum, and bottom ash for subbase layers in road construction. Two kinds of mixtures of these wastes with Portland cement and water were made: first with fly ash consisting of coarser particles ( LT 1.651 mm) and second with fly ash consisting of smaller particles ( LT 0.42 mm). The mass ratio of fly ash-Portland cement-flue gas desulphurization gypsum-bottom ash was the same (3:1:1:5) in both mixtures. For both mixtures, the compressive strength, the mineralogical composition, and the leaching characteristics were determined at different times, 7 and 28 days, after preparation. The obtained results showed that both mixtures could find a potential use for subbase layers in road construction.
PB  - Hindawi Limited
T2  - Journal of Chemistry
T1  - Preliminary Examination of the System Fly Ash-Bottom Ash-Flue Gas Desulphurization Gypsum-Portland Cement-Water for Road Construction
DO  - 10.1155/2013/421480
ER  - 

@article{
author = "Tokalic, R. and Marinkovic, S. and Trifunovic, P. and Dević, Gordana and Zildzovic, S.",
year = "2013",
abstract = "The paper describes an investigation into the use of three power plant wastes: fly ash, flue gas desulphurization gypsum, and bottom ash for subbase layers in road construction. Two kinds of mixtures of these wastes with Portland cement and water were made: first with fly ash consisting of coarser particles ( LT 1.651 mm) and second with fly ash consisting of smaller particles ( LT 0.42 mm). The mass ratio of fly ash-Portland cement-flue gas desulphurization gypsum-bottom ash was the same (3:1:1:5) in both mixtures. For both mixtures, the compressive strength, the mineralogical composition, and the leaching characteristics were determined at different times, 7 and 28 days, after preparation. The obtained results showed that both mixtures could find a potential use for subbase layers in road construction.",
publisher = "Hindawi Limited",
journal = "Journal of Chemistry",
title = "Preliminary Examination of the System Fly Ash-Bottom Ash-Flue Gas Desulphurization Gypsum-Portland Cement-Water for Road Construction",
doi = "10.1155/2013/421480"
}

Tokalic, R., Marinkovic, S., Trifunovic, P., Dević, G.,& Zildzovic, S.. (2013). Preliminary Examination of the System Fly Ash-Bottom Ash-Flue Gas Desulphurization Gypsum-Portland Cement-Water for Road Construction. in Journal of Chemistry
Hindawi Limited..
https://doi.org/10.1155/2013/421480

Tokalic R, Marinkovic S, Trifunovic P, Dević G, Zildzovic S. Preliminary Examination of the System Fly Ash-Bottom Ash-Flue Gas Desulphurization Gypsum-Portland Cement-Water for Road Construction. in Journal of Chemistry. 2013;.
doi:10.1155/2013/421480 .

Tokalic, R., Marinkovic, S., Trifunovic, P., Dević, Gordana, Zildzovic, S., "Preliminary Examination of the System Fly Ash-Bottom Ash-Flue Gas Desulphurization Gypsum-Portland Cement-Water for Road Construction" in Journal of Chemistry (2013),
https://doi.org/10.1155/2013/421480 . .

TY  - JOUR
AU  - Manovic, V.
AU  - Lončarević, Davor
AU  - Tokalic, R.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/592
AB  - In the present paper, the results of investigation of the heterogeneous nature of coals are given. Microscopic observations of coals of different rank and mineral matter content were performed. The content of minerals and macerals and the size of their grains were determined in the coal samples. Two samples of lignite rich in minerals were analyzed in detail by measuring the ash content for each particle and batches containing numerous [100] coal particles. The additional analyses were performed with the particles before and after sink-float separation. The obtained results showed an increase of heterogeneity with mineral matter content. The statistical analysis showed that many particles should be used for an experiment for obtaining reliable data with a desired level of certainty. In the case of batch experiments with 5 g Kolubara B coal (about 100 particles, size 4.76-7.0 mm), the experiment should be repeated at least 7, 19, and 100 times in order to obtain a mean value in the confidence intervals 5.0%, 2.5%, and 1.0%, respectively, for a 95% probability (if sample heterogeneity is the only cause for variations in results). However, regardless of increase of reproducibility and repeatability of obtained results, a large amount of samples and numerous repetitions of experiments cannot exclude differences in experimental results between homogenous and heterogeneous samples.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Energy Sources, Part A: Recovery, Utilization and Environmental Effects
T1  - Particle-to-particle heterogeneous nature of Coals A case of large coal particles
VL  - 31
IS  - 5
SP  - 427
EP  - 437
DO  - 10.1080/15567030701531287
ER  - 

@article{
author = "Manovic, V. and Lončarević, Davor and Tokalic, R.",
year = "2009",
abstract = "In the present paper, the results of investigation of the heterogeneous nature of coals are given. Microscopic observations of coals of different rank and mineral matter content were performed. The content of minerals and macerals and the size of their grains were determined in the coal samples. Two samples of lignite rich in minerals were analyzed in detail by measuring the ash content for each particle and batches containing numerous [100] coal particles. The additional analyses were performed with the particles before and after sink-float separation. The obtained results showed an increase of heterogeneity with mineral matter content. The statistical analysis showed that many particles should be used for an experiment for obtaining reliable data with a desired level of certainty. In the case of batch experiments with 5 g Kolubara B coal (about 100 particles, size 4.76-7.0 mm), the experiment should be repeated at least 7, 19, and 100 times in order to obtain a mean value in the confidence intervals 5.0%, 2.5%, and 1.0%, respectively, for a 95% probability (if sample heterogeneity is the only cause for variations in results). However, regardless of increase of reproducibility and repeatability of obtained results, a large amount of samples and numerous repetitions of experiments cannot exclude differences in experimental results between homogenous and heterogeneous samples.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Energy Sources, Part A: Recovery, Utilization and Environmental Effects",
title = "Particle-to-particle heterogeneous nature of Coals A case of large coal particles",
volume = "31",
number = "5",
pages = "427-437",
doi = "10.1080/15567030701531287"
}

Manovic, V., Lončarević, D.,& Tokalic, R.. (2009). Particle-to-particle heterogeneous nature of Coals A case of large coal particles. in Energy Sources, Part A: Recovery, Utilization and Environmental Effects
Taylor & Francis Inc, Philadelphia., 31(5), 427-437.
https://doi.org/10.1080/15567030701531287

Manovic V, Lončarević D, Tokalic R. Particle-to-particle heterogeneous nature of Coals A case of large coal particles. in Energy Sources, Part A: Recovery, Utilization and Environmental Effects. 2009;31(5):427-437.
doi:10.1080/15567030701531287 .

Manovic, V., Lončarević, Davor, Tokalic, R., "Particle-to-particle heterogeneous nature of Coals A case of large coal particles" in Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 31, no. 5 (2009):427-437,
https://doi.org/10.1080/15567030701531287 . .