Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
Аутори
Kragović, Milan M.Ristić, Nenad
Gulicovski, Jelena J.
Nedeljković, Andrijana
Pašalić, Snežana
Ristović, Ivica
Stojmenović, Marija
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The presented study is a continuation of the research with the aim of finding a useful
value of hazardous waste slag generated by the combustion of lignite in heating plants and its
application in the construction industry. The different amounts of cement (10%, 15%, 20% and
25%) were replaced with waste slag and silica fumes in mortars and concrete production. Detailed
physical–mechanical characterization was performed on the mortar and concrete samples according
to standard procedures. Test results indicated that the replacement of cement with slag and silica
fumes reduces the physical and mechanical properties of mortar and concrete, but cement composites
retained the required structural properties. If 15–20% is considered an acceptable level of compressive
strength decrease, then it can be concluded that waste slag can be implemented in practice and be
used as a construction material, with cement replacement in the maximal amount of 20% (17.8%
of slag and 2.2% of silica fu...mes). On hardened mortar samples with maximal possible cement
replacement (20%), physical–chemical characterizations were performed and included X-ray and
infrared spectrophotometry, scanning electron microscopy, and thermal analysis. Results showed the
absence of new phases and the presence of only those which were characteristic for starting samples,
predominantly portlandite, quartz, calcite and calcium silicate-oxide
Кључне речи:
lignite combustion / waste slag / cement replacement / mortar and concrete production / physical–mechanical / physical–chemical characterizationИзвор:
Minerals, 2021Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of the Republic of Serbia [1702103, 1702105]
DOI: 10.3390/min11090925
ISSN: 2075-163X
WoS: 000701544900001
Scopus: 2-s2.0-85113694901
Колекције
Институција/група
VinčaTY - JOUR AU - Kragović, Milan M. AU - Ristić, Nenad AU - Gulicovski, Jelena J. AU - Nedeljković, Andrijana AU - Pašalić, Snežana AU - Ristović, Ivica AU - Stojmenović, Marija PY - 2021 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9914 AB - The presented study is a continuation of the research with the aim of finding a useful value of hazardous waste slag generated by the combustion of lignite in heating plants and its application in the construction industry. The different amounts of cement (10%, 15%, 20% and 25%) were replaced with waste slag and silica fumes in mortars and concrete production. Detailed physical–mechanical characterization was performed on the mortar and concrete samples according to standard procedures. Test results indicated that the replacement of cement with slag and silica fumes reduces the physical and mechanical properties of mortar and concrete, but cement composites retained the required structural properties. If 15–20% is considered an acceptable level of compressive strength decrease, then it can be concluded that waste slag can be implemented in practice and be used as a construction material, with cement replacement in the maximal amount of 20% (17.8% of slag and 2.2% of silica fumes). On hardened mortar samples with maximal possible cement replacement (20%), physical–chemical characterizations were performed and included X-ray and infrared spectrophotometry, scanning electron microscopy, and thermal analysis. Results showed the absence of new phases and the presence of only those which were characteristic for starting samples, predominantly portlandite, quartz, calcite and calcium silicate-oxide T2 - Minerals T1 - Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete DO - 10.3390/min11090925 ER -
@article{ author = "Kragović, Milan M. and Ristić, Nenad and Gulicovski, Jelena J. and Nedeljković, Andrijana and Pašalić, Snežana and Ristović, Ivica and Stojmenović, Marija", year = "2021", abstract = "The presented study is a continuation of the research with the aim of finding a useful value of hazardous waste slag generated by the combustion of lignite in heating plants and its application in the construction industry. The different amounts of cement (10%, 15%, 20% and 25%) were replaced with waste slag and silica fumes in mortars and concrete production. Detailed physical–mechanical characterization was performed on the mortar and concrete samples according to standard procedures. Test results indicated that the replacement of cement with slag and silica fumes reduces the physical and mechanical properties of mortar and concrete, but cement composites retained the required structural properties. If 15–20% is considered an acceptable level of compressive strength decrease, then it can be concluded that waste slag can be implemented in practice and be used as a construction material, with cement replacement in the maximal amount of 20% (17.8% of slag and 2.2% of silica fumes). On hardened mortar samples with maximal possible cement replacement (20%), physical–chemical characterizations were performed and included X-ray and infrared spectrophotometry, scanning electron microscopy, and thermal analysis. Results showed the absence of new phases and the presence of only those which were characteristic for starting samples, predominantly portlandite, quartz, calcite and calcium silicate-oxide", journal = "Minerals", title = "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete", doi = "10.3390/min11090925" }
Kragović, M. M., Ristić, N., Gulicovski, J. J., Nedeljković, A., Pašalić, S., Ristović, I.,& Stojmenović, M.. (2021). Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete. in Minerals. https://doi.org/10.3390/min11090925
Kragović MM, Ristić N, Gulicovski JJ, Nedeljković A, Pašalić S, Ristović I, Stojmenović M. Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete. in Minerals. 2021;. doi:10.3390/min11090925 .
Kragović, Milan M., Ristić, Nenad, Gulicovski, Jelena J., Nedeljković, Andrijana, Pašalić, Snežana, Ristović, Ivica, Stojmenović, Marija, "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals (2021), https://doi.org/10.3390/min11090925 . .