The Experts below are selected from a list of 1194 Experts worldwide ranked by ideXlab platform
Vsevolod Mymrin - One of the best experts on this subject based on the ideXlab platform.
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material cycle realization by hazardous phosphogypsum waste Ferrous Slag and lime production waste application to produce sustainable construction materials
Journal of Material Cycles and Waste Management, 2021Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Marco A Argenda, Karina Querne De Carvalho, Alexandre Erbs, Rodrigo Eduardo CataiAbstract:The article presents data from new compositions of construction materials developed from three types of Kazakhstan enterprises’ industrial waste—highly alkaline (pH = 13.5) hazardous sludge of phosphogypsum (PG) waste from Karatau deposits (52–78 wt.%), ground-cooled converter Slag (CS) from Karaganda Metallurgical Plant (20–45%), and lime production waste (LPW) from a small plant near Astana (2%). This research aimed to develop new compositions of materials, which correspond to Kazakhstan’s mechanical and environmental standards, to study the processes of new composites’ structure formation in the process of their hydration and resistance strengthening. The axial compressive-resistance values of the developed composites reached 5.3–6.8–9.6 and 14.9 MPa after 3, 7, 14, and 550 days of hydration, respectively; the values of the coefficient of linear expansion were in the range of 0.23 and 3.14%, and those of water absorption between 8.2 and 18.4%. The formation processes of the materials’ structure were studied by the XRD, SEM, EDS, AAS, and LAMMA methods. The analyses of the solubility and leaching of metals by the AAS method showed the compliance of the new compositions with Kazakhstan’s sanitary standards.
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efficient road base material from kazakhstan s natural loam strengthened by ground cooled Ferrous Slag activated by lime production waste
Journal of Cleaner Production, 2019Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Valerii Petukhov, A S Kholodov, Andrei V Taskin, Alfredo Iarozinski NAbstract:Abstract A scientifically based disposal of all industrial and municipal wastes is the only solution for the problem of the rapid and constant increase in environmental pollution and the associated climate change, with inevitable catastrophic consequences for our planet. The present study proposes such scientifically based method for the use of two types of industrial waste – ground cooled Slag of Ferrous metal and lime production waste – as a binder for natural loam for road base construction with complete replacement of traditional layers from natural sand and rubble. The axial compression strength of the developed materials in 3-day age samples reached 3.27 MPa, in 28 days–6.95 MPa, 180 days–13.39 MPa, and 550 days–16.44 MPa, very high water and frost resistance, and rather low linear expansion, meeting the demands for 1st class construction materials of the Kazakh norms. It has been established, by a set of modern complementary methods (X-rays diffractometric analysis, X-rays fluorescence analyses, scanning electron microscopy, Energy-dispersive spectroscopy, Atomic absorption spectroscopy laser micro-mass analyses), the synthesis of new formations, mainly amorphous, which are binding the particles of the initial components. The achieved mechanical properties enable the application of these composites also as building materials, such as unburned bricks and blocks with high environmental and economic efficiency.
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environmentally clean materials from hazardous red mud ground cooled Ferrous Slag and lime production waste
Journal of Cleaner Production, 2017Co-Authors: Vsevolod Mymrin, Kirill Alekseev, Rodrigo Eduardo Catai, Otavio M Fortini, Cleber Luis Pedroso, Edgar Winter, Andre Nagalli, Yelaman K Aibuldinov, Eliane B C CostaAbstract:Abstract New composite materials were developed from red mud, a residue from bauxite mining, which can be used in several applications such as airfield runways, municipal waste dumps, and production of tiles among others. The composites contain 52 to 78 wt % of red mud with pH value near 13.5, ground cooled Ferrous Slag (20–45%), and lime production waste (2%). The main objectives of this research were to develop new environmentally efficient solutions for these three solid wastes as valuable components of reusable materials and to study their structure formation processes. Different wet mixes of these three wastes were compacted with a force of 10 MPa to cylindrical shapes of 20 × 20 mm, and hardened at 94–96% humidity. The materials had axial resistance strength 1.8, 3.4, 6.2 and 11.2 MPa on the 3rd, 7th, 14th, and 365 th days respectively; coefficients of linear expansion ranged between 0.3 and 4.76%, and water absorption ranged from 1.8 to 9.31%. The hardening process was monitored by XRD, SEM, EDS, and LAMMA demonstrating that new mainly amorphous formations are responsible for the materials’ structure formation. Leaching and solubility tests show that the new materials meet environmental standards for the intended applications.
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potential application of acid jarosite wastes as the main component of construction materials
Construction and Building Materials, 2005Co-Authors: Vsevolod Mymrin, Haroldo De Araujo Ponte, Patricio R ImpinnisiAbstract:Abstract The purpose of this work was threefold: (1) To test quite new method of materials preparation only from the mixture of hazardous or polluting industrial wastes: of high acid jarosite processing waste (JW) of Zn-industry, alkaline Al-surface cleaning waste (ASCW) as neutralizer of its acidity and dump Ferrous Slag (DFS) as a binder of neutralized JW. (2) To study the structural formation processes of new substances. (3) To bind the heavy metals contained in JW to come up with new environment-friendly construction materials. XRD and SEM were used to monitor the hardening process, which was controlled by the changes of uniaxial strength and of linear deformation. Using small additions of Portland cement or lime, the strength of jarosite-treated materials can be increased. All these materials can be used in general civil engineering applications, as bases or sub-bases of roads, airfields and dams, replacing natural crushed stones, gravel, sand, and so on, and in the production of bricks, tiles and other products. The materials' enhanced strength is attributed to the new formation of amorphous gel, since the presence of small quantity of crystal hydrate forms cannot explain the strength of the samples.
Kirill Alekseev - One of the best experts on this subject based on the ideXlab platform.
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material cycle realization by hazardous phosphogypsum waste Ferrous Slag and lime production waste application to produce sustainable construction materials
Journal of Material Cycles and Waste Management, 2021Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Marco A Argenda, Karina Querne De Carvalho, Alexandre Erbs, Rodrigo Eduardo CataiAbstract:The article presents data from new compositions of construction materials developed from three types of Kazakhstan enterprises’ industrial waste—highly alkaline (pH = 13.5) hazardous sludge of phosphogypsum (PG) waste from Karatau deposits (52–78 wt.%), ground-cooled converter Slag (CS) from Karaganda Metallurgical Plant (20–45%), and lime production waste (LPW) from a small plant near Astana (2%). This research aimed to develop new compositions of materials, which correspond to Kazakhstan’s mechanical and environmental standards, to study the processes of new composites’ structure formation in the process of their hydration and resistance strengthening. The axial compressive-resistance values of the developed composites reached 5.3–6.8–9.6 and 14.9 MPa after 3, 7, 14, and 550 days of hydration, respectively; the values of the coefficient of linear expansion were in the range of 0.23 and 3.14%, and those of water absorption between 8.2 and 18.4%. The formation processes of the materials’ structure were studied by the XRD, SEM, EDS, AAS, and LAMMA methods. The analyses of the solubility and leaching of metals by the AAS method showed the compliance of the new compositions with Kazakhstan’s sanitary standards.
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efficient road base material from kazakhstan s natural loam strengthened by ground cooled Ferrous Slag activated by lime production waste
Journal of Cleaner Production, 2019Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Valerii Petukhov, A S Kholodov, Andrei V Taskin, Alfredo Iarozinski NAbstract:Abstract A scientifically based disposal of all industrial and municipal wastes is the only solution for the problem of the rapid and constant increase in environmental pollution and the associated climate change, with inevitable catastrophic consequences for our planet. The present study proposes such scientifically based method for the use of two types of industrial waste – ground cooled Slag of Ferrous metal and lime production waste – as a binder for natural loam for road base construction with complete replacement of traditional layers from natural sand and rubble. The axial compression strength of the developed materials in 3-day age samples reached 3.27 MPa, in 28 days–6.95 MPa, 180 days–13.39 MPa, and 550 days–16.44 MPa, very high water and frost resistance, and rather low linear expansion, meeting the demands for 1st class construction materials of the Kazakh norms. It has been established, by a set of modern complementary methods (X-rays diffractometric analysis, X-rays fluorescence analyses, scanning electron microscopy, Energy-dispersive spectroscopy, Atomic absorption spectroscopy laser micro-mass analyses), the synthesis of new formations, mainly amorphous, which are binding the particles of the initial components. The achieved mechanical properties enable the application of these composites also as building materials, such as unburned bricks and blocks with high environmental and economic efficiency.
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environmentally clean materials from hazardous red mud ground cooled Ferrous Slag and lime production waste
Journal of Cleaner Production, 2017Co-Authors: Vsevolod Mymrin, Kirill Alekseev, Rodrigo Eduardo Catai, Otavio M Fortini, Cleber Luis Pedroso, Edgar Winter, Andre Nagalli, Yelaman K Aibuldinov, Eliane B C CostaAbstract:Abstract New composite materials were developed from red mud, a residue from bauxite mining, which can be used in several applications such as airfield runways, municipal waste dumps, and production of tiles among others. The composites contain 52 to 78 wt % of red mud with pH value near 13.5, ground cooled Ferrous Slag (20–45%), and lime production waste (2%). The main objectives of this research were to develop new environmentally efficient solutions for these three solid wastes as valuable components of reusable materials and to study their structure formation processes. Different wet mixes of these three wastes were compacted with a force of 10 MPa to cylindrical shapes of 20 × 20 mm, and hardened at 94–96% humidity. The materials had axial resistance strength 1.8, 3.4, 6.2 and 11.2 MPa on the 3rd, 7th, 14th, and 365 th days respectively; coefficients of linear expansion ranged between 0.3 and 4.76%, and water absorption ranged from 1.8 to 9.31%. The hardening process was monitored by XRD, SEM, EDS, and LAMMA demonstrating that new mainly amorphous formations are responsible for the materials’ structure formation. Leaching and solubility tests show that the new materials meet environmental standards for the intended applications.
Rodrigo Eduardo Catai - One of the best experts on this subject based on the ideXlab platform.
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material cycle realization by hazardous phosphogypsum waste Ferrous Slag and lime production waste application to produce sustainable construction materials
Journal of Material Cycles and Waste Management, 2021Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Marco A Argenda, Karina Querne De Carvalho, Alexandre Erbs, Rodrigo Eduardo CataiAbstract:The article presents data from new compositions of construction materials developed from three types of Kazakhstan enterprises’ industrial waste—highly alkaline (pH = 13.5) hazardous sludge of phosphogypsum (PG) waste from Karatau deposits (52–78 wt.%), ground-cooled converter Slag (CS) from Karaganda Metallurgical Plant (20–45%), and lime production waste (LPW) from a small plant near Astana (2%). This research aimed to develop new compositions of materials, which correspond to Kazakhstan’s mechanical and environmental standards, to study the processes of new composites’ structure formation in the process of their hydration and resistance strengthening. The axial compressive-resistance values of the developed composites reached 5.3–6.8–9.6 and 14.9 MPa after 3, 7, 14, and 550 days of hydration, respectively; the values of the coefficient of linear expansion were in the range of 0.23 and 3.14%, and those of water absorption between 8.2 and 18.4%. The formation processes of the materials’ structure were studied by the XRD, SEM, EDS, AAS, and LAMMA methods. The analyses of the solubility and leaching of metals by the AAS method showed the compliance of the new compositions with Kazakhstan’s sanitary standards.
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efficient road base material from kazakhstan s natural loam strengthened by ground cooled Ferrous Slag activated by lime production waste
Journal of Cleaner Production, 2019Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Valerii Petukhov, A S Kholodov, Andrei V Taskin, Alfredo Iarozinski NAbstract:Abstract A scientifically based disposal of all industrial and municipal wastes is the only solution for the problem of the rapid and constant increase in environmental pollution and the associated climate change, with inevitable catastrophic consequences for our planet. The present study proposes such scientifically based method for the use of two types of industrial waste – ground cooled Slag of Ferrous metal and lime production waste – as a binder for natural loam for road base construction with complete replacement of traditional layers from natural sand and rubble. The axial compression strength of the developed materials in 3-day age samples reached 3.27 MPa, in 28 days–6.95 MPa, 180 days–13.39 MPa, and 550 days–16.44 MPa, very high water and frost resistance, and rather low linear expansion, meeting the demands for 1st class construction materials of the Kazakh norms. It has been established, by a set of modern complementary methods (X-rays diffractometric analysis, X-rays fluorescence analyses, scanning electron microscopy, Energy-dispersive spectroscopy, Atomic absorption spectroscopy laser micro-mass analyses), the synthesis of new formations, mainly amorphous, which are binding the particles of the initial components. The achieved mechanical properties enable the application of these composites also as building materials, such as unburned bricks and blocks with high environmental and economic efficiency.
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environmentally clean materials from hazardous red mud ground cooled Ferrous Slag and lime production waste
Journal of Cleaner Production, 2017Co-Authors: Vsevolod Mymrin, Kirill Alekseev, Rodrigo Eduardo Catai, Otavio M Fortini, Cleber Luis Pedroso, Edgar Winter, Andre Nagalli, Yelaman K Aibuldinov, Eliane B C CostaAbstract:Abstract New composite materials were developed from red mud, a residue from bauxite mining, which can be used in several applications such as airfield runways, municipal waste dumps, and production of tiles among others. The composites contain 52 to 78 wt % of red mud with pH value near 13.5, ground cooled Ferrous Slag (20–45%), and lime production waste (2%). The main objectives of this research were to develop new environmentally efficient solutions for these three solid wastes as valuable components of reusable materials and to study their structure formation processes. Different wet mixes of these three wastes were compacted with a force of 10 MPa to cylindrical shapes of 20 × 20 mm, and hardened at 94–96% humidity. The materials had axial resistance strength 1.8, 3.4, 6.2 and 11.2 MPa on the 3rd, 7th, 14th, and 365 th days respectively; coefficients of linear expansion ranged between 0.3 and 4.76%, and water absorption ranged from 1.8 to 9.31%. The hardening process was monitored by XRD, SEM, EDS, and LAMMA demonstrating that new mainly amorphous formations are responsible for the materials’ structure formation. Leaching and solubility tests show that the new materials meet environmental standards for the intended applications.
Eliane B C Costa - One of the best experts on this subject based on the ideXlab platform.
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environmentally clean materials from hazardous red mud ground cooled Ferrous Slag and lime production waste
Journal of Cleaner Production, 2017Co-Authors: Vsevolod Mymrin, Kirill Alekseev, Rodrigo Eduardo Catai, Otavio M Fortini, Cleber Luis Pedroso, Edgar Winter, Andre Nagalli, Yelaman K Aibuldinov, Eliane B C CostaAbstract:Abstract New composite materials were developed from red mud, a residue from bauxite mining, which can be used in several applications such as airfield runways, municipal waste dumps, and production of tiles among others. The composites contain 52 to 78 wt % of red mud with pH value near 13.5, ground cooled Ferrous Slag (20–45%), and lime production waste (2%). The main objectives of this research were to develop new environmentally efficient solutions for these three solid wastes as valuable components of reusable materials and to study their structure formation processes. Different wet mixes of these three wastes were compacted with a force of 10 MPa to cylindrical shapes of 20 × 20 mm, and hardened at 94–96% humidity. The materials had axial resistance strength 1.8, 3.4, 6.2 and 11.2 MPa on the 3rd, 7th, 14th, and 365 th days respectively; coefficients of linear expansion ranged between 0.3 and 4.76%, and water absorption ranged from 1.8 to 9.31%. The hardening process was monitored by XRD, SEM, EDS, and LAMMA demonstrating that new mainly amorphous formations are responsible for the materials’ structure formation. Leaching and solubility tests show that the new materials meet environmental standards for the intended applications.
Alfredo Iarozinski N - One of the best experts on this subject based on the ideXlab platform.
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efficient road base material from kazakhstan s natural loam strengthened by ground cooled Ferrous Slag activated by lime production waste
Journal of Cleaner Production, 2019Co-Authors: Vsevolod Mymrin, Elaman K Aibuldinov, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Valerii Petukhov, A S Kholodov, Andrei V Taskin, Alfredo Iarozinski NAbstract:Abstract A scientifically based disposal of all industrial and municipal wastes is the only solution for the problem of the rapid and constant increase in environmental pollution and the associated climate change, with inevitable catastrophic consequences for our planet. The present study proposes such scientifically based method for the use of two types of industrial waste – ground cooled Slag of Ferrous metal and lime production waste – as a binder for natural loam for road base construction with complete replacement of traditional layers from natural sand and rubble. The axial compression strength of the developed materials in 3-day age samples reached 3.27 MPa, in 28 days–6.95 MPa, 180 days–13.39 MPa, and 550 days–16.44 MPa, very high water and frost resistance, and rather low linear expansion, meeting the demands for 1st class construction materials of the Kazakh norms. It has been established, by a set of modern complementary methods (X-rays diffractometric analysis, X-rays fluorescence analyses, scanning electron microscopy, Energy-dispersive spectroscopy, Atomic absorption spectroscopy laser micro-mass analyses), the synthesis of new formations, mainly amorphous, which are binding the particles of the initial components. The achieved mechanical properties enable the application of these composites also as building materials, such as unburned bricks and blocks with high environmental and economic efficiency.