The Experts below are selected from a list of 20580 Experts worldwide ranked by ideXlab platform
Vsévolod Mymrin - One of the best experts on this subject based on the ideXlab platform.
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endless extension of life cycle of construction and demolition wastes as the most efficient environmental technology
Environmental Technology and Innovation, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Karina Querne De Carvalho, Paulo H B Rolim, Carlos E Waltrick, Rodrigo E CatalAbstract:Abstract The main purposes of this study were to confirm the life cycle assessment of traditional construction materials (construction and demolition debris, plaster waste Lime Production waste) as endless due to the possibility of reusing them multiple times without reducing their mechanical properties and sustainability; to determine the physical–chemical processes of recycled composites structure formation. The research was performed by the methods of X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, and laser micro mass analyses. The sample’s axial resistance reached 3.2 MPa on the 3rd day, 8.8 MPa on the 14th day, and up to 16.7 MPa on the 180th day with expansion coefficient values up to 1.81%, water absorption - 14.9%, and apparent density up to 1.95 g/cm 3. The processes of structure formation showed the hardening of the material due to alkaline corrosion of the solid particles’ surfaces with chemical interaction of these alkaline solutions and synthesis of new predominantly amorphous formations of sol–gel CSH-group and carbonates; over time, these new gel formations were converted into a stony state. The obtained results show that developed composites can be returned unlimited times to construction life cycle as valuable components to produce building materials without the use of traditional natural raw materials like sand, rock, stones, clay, and to avoid irreparable destruction of landscapes by quarries for their extraction.
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environmentally clean materials from contaminated marine dredged sludge wood ashes and Lime Production wastes
Journal of Cleaner Production, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Cristofer B Scremim, Roberto C Y Pan, Jacqueline C Stella, Joao C Bosco, Paulo H B RolimAbstract:Abstract The aim of this study was to develop environment-friendly composites from dredged sediments (DS) from the seaport of Paranagua, Brazil (30–70 wt %), wood ashes (WA) (5–40%), and Lime Production wastes (LPW) (15–30%). The materials' characterization was carried out by axial compressive and water resistance, water absorption, bulk density, XRD, MEV, EDS mapping, LAMMA, and AAS. The samples' axial resistance reached 2.39 MPa on the 3rd day, and 8.77 MPa on the 180th day. The water absorption values ranged from 9.5% to 17.2% on the 28th day and from 8.1% to 14.6% on the 90th day. All these changes took place due to the synthesis of amorphous materials, mainly carbonates. The developed composites can be used as road base materials, cementless concrete, non-fired brick and similar sustainable construction materials. The widespread DS use by this ecologically clean method can significantly improve oceans and industrial regions’ environmental situation and decrease natural resource consumption for civil construction.
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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: Vsévolod 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 application of cellulose pulp and paper Production wastes to produce sustainable construction materials
Construction and Building Materials, 2020Co-Authors: Vsévolod Mymrin, Monica A Avanci, Paulo H B Rolim, Daniela E Pedroso, Cleber Luis Pedroso, Stephanie A S Meyer, Marco A Argenta, Maria J J Ponte, Alexandre J GoncalvesAbstract:Abstract The mechanical and physical properties of the composites developed from dregs, grits, and Lime mud of the Kraft cellulose and paper Production process (55–75%), concrete waste (10–25%) and Lime Production waste (0–25%), far exceeded the demands of Brazilian standards for bricks, blocks, and road-base construction materials. The study of the developed composites structure by XRF, XRD, SEM, EDS, and LAMMA methods demonstrated that new mainly amorphous formations were responsible for all attained properties. The industrial application of these construction materials would introduce excellent efficiency from an economic and environmental points of view.
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structure formation processes of sustainable construction material from hazardous sewage sludge with additions of wood ash and Lime Production waste
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Clarice De Andrade, Paulo H B Rolim, Walderson Klitzke, Dimas Agostinho Da Silva, Fernando Augusto FerrazAbstract:The main purpose of this work was to look for new application for hazardous sewage sludge, wood ash, and Lime Production waste for replacement of traditional natural construction raw materials with high environmental efficiency. The composites reached the 13.0 MPa of axial resistance strength value on the 28th day with 16.07% of the water absorption values, 1.0% of expansion coefficient, and 1.675 g/cm3 of bulk density. The chemical, mineralogical, and granulometric compositions of the raw and developed materials studied by the complementary XRD, XRF, SEM, EDS, and LAMMA methods demonstrate a new mainly amorphous carbonate synthesis, responsible for the new structures formation with mechanical properties that exceed the requirements of the Brazilian technical standards. The results of the leaching and solubility tests showed their compliance with the Brazilian sanitary standards.
Kirill Alekseev - One of the best experts on this subject based on the ideXlab platform.
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endless extension of life cycle of construction and demolition wastes as the most efficient environmental technology
Environmental Technology and Innovation, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Karina Querne De Carvalho, Paulo H B Rolim, Carlos E Waltrick, Rodrigo E CatalAbstract:Abstract The main purposes of this study were to confirm the life cycle assessment of traditional construction materials (construction and demolition debris, plaster waste Lime Production waste) as endless due to the possibility of reusing them multiple times without reducing their mechanical properties and sustainability; to determine the physical–chemical processes of recycled composites structure formation. The research was performed by the methods of X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, and laser micro mass analyses. The sample’s axial resistance reached 3.2 MPa on the 3rd day, 8.8 MPa on the 14th day, and up to 16.7 MPa on the 180th day with expansion coefficient values up to 1.81%, water absorption - 14.9%, and apparent density up to 1.95 g/cm 3. The processes of structure formation showed the hardening of the material due to alkaline corrosion of the solid particles’ surfaces with chemical interaction of these alkaline solutions and synthesis of new predominantly amorphous formations of sol–gel CSH-group and carbonates; over time, these new gel formations were converted into a stony state. The obtained results show that developed composites can be returned unlimited times to construction life cycle as valuable components to produce building materials without the use of traditional natural raw materials like sand, rock, stones, clay, and to avoid irreparable destruction of landscapes by quarries for their extraction.
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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: Vsévolod 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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structure formation processes of sustainable construction material from hazardous sewage sludge with additions of wood ash and Lime Production waste
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Clarice De Andrade, Paulo H B Rolim, Walderson Klitzke, Dimas Agostinho Da Silva, Fernando Augusto FerrazAbstract:The main purpose of this work was to look for new application for hazardous sewage sludge, wood ash, and Lime Production waste for replacement of traditional natural construction raw materials with high environmental efficiency. The composites reached the 13.0 MPa of axial resistance strength value on the 28th day with 16.07% of the water absorption values, 1.0% of expansion coefficient, and 1.675 g/cm3 of bulk density. The chemical, mineralogical, and granulometric compositions of the raw and developed materials studied by the complementary XRD, XRF, SEM, EDS, and LAMMA methods demonstrate a new mainly amorphous carbonate synthesis, responsible for the new structures formation with mechanical properties that exceed the requirements of the Brazilian technical standards. The results of the leaching and solubility tests showed their compliance with the Brazilian 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: Vsévolod 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 composites with hazardous aluminum anodizing sludge concrete waste and Lime Production waste
Journal of Cleaner Production, 2018Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Paulo H B Rolim, Daniela E Pedroso, Cleber Luis Pedroso, Edgar Winter, Luana Cechin, Alfredo Iarozinski, Rodrigo Eduardo CataiAbstract:Abstract The main purpose of this research was to study the influence of highly alkaline additives of aluminum anodizing waste (AAW) on the mechanical properties and structure formation processes of the cement-less construction material like non-burnt bricks and blocks based on concrete and Lime Production waste. The test specimens from 12 compositions of AAW, concrete waste (CW), and Lime Production waste (LPW) were homogenized, moistened, compacted at 10 MPa and strengthened outdoors. The axial strength values of the developed materials on the 3rd day of curing reached till 5.9 MPa; after the 7th day - till 6.8 MPa; after the 28th day - 7.9 MPa and after the365th day 13.4 MPa. The water absorption values after 28 days of curing went from 12.33 to 13.86% and at 90 days - between 11.18 and 12.74%. The expansion coefficient of the test specimens after 28 days of curing varied between 1.1 and 2.6% and after 365 days between 0.9% and 2.2%. The study was conducted on physical and chemical interaction processes of components of structure formation in the moist alkaline environment performed by complementary methods of X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), laser micro-mass analysis (LAMMA), and atomic absorption spectroscopy (AAS). The study showed that the new mainly amorphous formations were responsible for the physical strengthening during the first year of hydration.
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: Vsévolod 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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structure formation processes of sustainable construction material from hazardous sewage sludge with additions of wood ash and Lime Production waste
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Clarice De Andrade, Paulo H B Rolim, Walderson Klitzke, Dimas Agostinho Da Silva, Fernando Augusto FerrazAbstract:The main purpose of this work was to look for new application for hazardous sewage sludge, wood ash, and Lime Production waste for replacement of traditional natural construction raw materials with high environmental efficiency. The composites reached the 13.0 MPa of axial resistance strength value on the 28th day with 16.07% of the water absorption values, 1.0% of expansion coefficient, and 1.675 g/cm3 of bulk density. The chemical, mineralogical, and granulometric compositions of the raw and developed materials studied by the complementary XRD, XRF, SEM, EDS, and LAMMA methods demonstrate a new mainly amorphous carbonate synthesis, responsible for the new structures formation with mechanical properties that exceed the requirements of the Brazilian technical standards. The results of the leaching and solubility tests showed their compliance with the Brazilian 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: Vsévolod 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 composites with hazardous aluminum anodizing sludge concrete waste and Lime Production waste
Journal of Cleaner Production, 2018Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Paulo H B Rolim, Daniela E Pedroso, Cleber Luis Pedroso, Edgar Winter, Luana Cechin, Alfredo Iarozinski, Rodrigo Eduardo CataiAbstract:Abstract The main purpose of this research was to study the influence of highly alkaline additives of aluminum anodizing waste (AAW) on the mechanical properties and structure formation processes of the cement-less construction material like non-burnt bricks and blocks based on concrete and Lime Production waste. The test specimens from 12 compositions of AAW, concrete waste (CW), and Lime Production waste (LPW) were homogenized, moistened, compacted at 10 MPa and strengthened outdoors. The axial strength values of the developed materials on the 3rd day of curing reached till 5.9 MPa; after the 7th day - till 6.8 MPa; after the 28th day - 7.9 MPa and after the365th day 13.4 MPa. The water absorption values after 28 days of curing went from 12.33 to 13.86% and at 90 days - between 11.18 and 12.74%. The expansion coefficient of the test specimens after 28 days of curing varied between 1.1 and 2.6% and after 365 days between 0.9% and 2.2%. The study was conducted on physical and chemical interaction processes of components of structure formation in the moist alkaline environment performed by complementary methods of X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), laser micro-mass analysis (LAMMA), and atomic absorption spectroscopy (AAS). The study showed that the new mainly amorphous formations were responsible for the physical strengthening during the first year of hydration.
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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: Vsévolod 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.
Monica A Avanci - One of the best experts on this subject based on the ideXlab platform.
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endless extension of life cycle of construction and demolition wastes as the most efficient environmental technology
Environmental Technology and Innovation, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Karina Querne De Carvalho, Paulo H B Rolim, Carlos E Waltrick, Rodrigo E CatalAbstract:Abstract The main purposes of this study were to confirm the life cycle assessment of traditional construction materials (construction and demolition debris, plaster waste Lime Production waste) as endless due to the possibility of reusing them multiple times without reducing their mechanical properties and sustainability; to determine the physical–chemical processes of recycled composites structure formation. The research was performed by the methods of X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, and laser micro mass analyses. The sample’s axial resistance reached 3.2 MPa on the 3rd day, 8.8 MPa on the 14th day, and up to 16.7 MPa on the 180th day with expansion coefficient values up to 1.81%, water absorption - 14.9%, and apparent density up to 1.95 g/cm 3. The processes of structure formation showed the hardening of the material due to alkaline corrosion of the solid particles’ surfaces with chemical interaction of these alkaline solutions and synthesis of new predominantly amorphous formations of sol–gel CSH-group and carbonates; over time, these new gel formations were converted into a stony state. The obtained results show that developed composites can be returned unlimited times to construction life cycle as valuable components to produce building materials without the use of traditional natural raw materials like sand, rock, stones, clay, and to avoid irreparable destruction of landscapes by quarries for their extraction.
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environmentally clean materials from contaminated marine dredged sludge wood ashes and Lime Production wastes
Journal of Cleaner Production, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Cristofer B Scremim, Roberto C Y Pan, Jacqueline C Stella, Joao C Bosco, Paulo H B RolimAbstract:Abstract The aim of this study was to develop environment-friendly composites from dredged sediments (DS) from the seaport of Paranagua, Brazil (30–70 wt %), wood ashes (WA) (5–40%), and Lime Production wastes (LPW) (15–30%). The materials' characterization was carried out by axial compressive and water resistance, water absorption, bulk density, XRD, MEV, EDS mapping, LAMMA, and AAS. The samples' axial resistance reached 2.39 MPa on the 3rd day, and 8.77 MPa on the 180th day. The water absorption values ranged from 9.5% to 17.2% on the 28th day and from 8.1% to 14.6% on the 90th day. All these changes took place due to the synthesis of amorphous materials, mainly carbonates. The developed composites can be used as road base materials, cementless concrete, non-fired brick and similar sustainable construction materials. The widespread DS use by this ecologically clean method can significantly improve oceans and industrial regions’ environmental situation and decrease natural resource consumption for civil construction.
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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: Vsévolod 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 application of cellulose pulp and paper Production wastes to produce sustainable construction materials
Construction and Building Materials, 2020Co-Authors: Vsévolod Mymrin, Monica A Avanci, Paulo H B Rolim, Daniela E Pedroso, Cleber Luis Pedroso, Stephanie A S Meyer, Marco A Argenta, Maria J J Ponte, Alexandre J GoncalvesAbstract:Abstract The mechanical and physical properties of the composites developed from dregs, grits, and Lime mud of the Kraft cellulose and paper Production process (55–75%), concrete waste (10–25%) and Lime Production waste (0–25%), far exceeded the demands of Brazilian standards for bricks, blocks, and road-base construction materials. The study of the developed composites structure by XRF, XRD, SEM, EDS, and LAMMA methods demonstrated that new mainly amorphous formations were responsible for all attained properties. The industrial application of these construction materials would introduce excellent efficiency from an economic and environmental points of view.
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structure formation processes of sustainable construction material from hazardous sewage sludge with additions of wood ash and Lime Production waste
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Clarice De Andrade, Paulo H B Rolim, Walderson Klitzke, Dimas Agostinho Da Silva, Fernando Augusto FerrazAbstract:The main purpose of this work was to look for new application for hazardous sewage sludge, wood ash, and Lime Production waste for replacement of traditional natural construction raw materials with high environmental efficiency. The composites reached the 13.0 MPa of axial resistance strength value on the 28th day with 16.07% of the water absorption values, 1.0% of expansion coefficient, and 1.675 g/cm3 of bulk density. The chemical, mineralogical, and granulometric compositions of the raw and developed materials studied by the complementary XRD, XRF, SEM, EDS, and LAMMA methods demonstrate a new mainly amorphous carbonate synthesis, responsible for the new structures formation with mechanical properties that exceed the requirements of the Brazilian technical standards. The results of the leaching and solubility tests showed their compliance with the Brazilian sanitary standards.
Paulo H B Rolim - One of the best experts on this subject based on the ideXlab platform.
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endless extension of life cycle of construction and demolition wastes as the most efficient environmental technology
Environmental Technology and Innovation, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Karina Querne De Carvalho, Paulo H B Rolim, Carlos E Waltrick, Rodrigo E CatalAbstract:Abstract The main purposes of this study were to confirm the life cycle assessment of traditional construction materials (construction and demolition debris, plaster waste Lime Production waste) as endless due to the possibility of reusing them multiple times without reducing their mechanical properties and sustainability; to determine the physical–chemical processes of recycled composites structure formation. The research was performed by the methods of X-ray powder diffraction, scanning electron microscopy, energy dispersive spectroscopy, and laser micro mass analyses. The sample’s axial resistance reached 3.2 MPa on the 3rd day, 8.8 MPa on the 14th day, and up to 16.7 MPa on the 180th day with expansion coefficient values up to 1.81%, water absorption - 14.9%, and apparent density up to 1.95 g/cm 3. The processes of structure formation showed the hardening of the material due to alkaline corrosion of the solid particles’ surfaces with chemical interaction of these alkaline solutions and synthesis of new predominantly amorphous formations of sol–gel CSH-group and carbonates; over time, these new gel formations were converted into a stony state. The obtained results show that developed composites can be returned unlimited times to construction life cycle as valuable components to produce building materials without the use of traditional natural raw materials like sand, rock, stones, clay, and to avoid irreparable destruction of landscapes by quarries for their extraction.
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environmentally clean materials from contaminated marine dredged sludge wood ashes and Lime Production wastes
Journal of Cleaner Production, 2021Co-Authors: Vsévolod Mymrin, Monica A Avanci, Cristofer B Scremim, Roberto C Y Pan, Jacqueline C Stella, Joao C Bosco, Paulo H B RolimAbstract:Abstract The aim of this study was to develop environment-friendly composites from dredged sediments (DS) from the seaport of Paranagua, Brazil (30–70 wt %), wood ashes (WA) (5–40%), and Lime Production wastes (LPW) (15–30%). The materials' characterization was carried out by axial compressive and water resistance, water absorption, bulk density, XRD, MEV, EDS mapping, LAMMA, and AAS. The samples' axial resistance reached 2.39 MPa on the 3rd day, and 8.77 MPa on the 180th day. The water absorption values ranged from 9.5% to 17.2% on the 28th day and from 8.1% to 14.6% on the 90th day. All these changes took place due to the synthesis of amorphous materials, mainly carbonates. The developed composites can be used as road base materials, cementless concrete, non-fired brick and similar sustainable construction materials. The widespread DS use by this ecologically clean method can significantly improve oceans and industrial regions’ environmental situation and decrease natural resource consumption for civil construction.
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efficient application of cellulose pulp and paper Production wastes to produce sustainable construction materials
Construction and Building Materials, 2020Co-Authors: Vsévolod Mymrin, Monica A Avanci, Paulo H B Rolim, Daniela E Pedroso, Cleber Luis Pedroso, Stephanie A S Meyer, Marco A Argenta, Maria J J Ponte, Alexandre J GoncalvesAbstract:Abstract The mechanical and physical properties of the composites developed from dregs, grits, and Lime mud of the Kraft cellulose and paper Production process (55–75%), concrete waste (10–25%) and Lime Production waste (0–25%), far exceeded the demands of Brazilian standards for bricks, blocks, and road-base construction materials. The study of the developed composites structure by XRF, XRD, SEM, EDS, and LAMMA methods demonstrated that new mainly amorphous formations were responsible for all attained properties. The industrial application of these construction materials would introduce excellent efficiency from an economic and environmental points of view.
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structure formation processes of sustainable construction material from hazardous sewage sludge with additions of wood ash and Lime Production waste
The International Journal of Advanced Manufacturing Technology, 2019Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Rodrigo Eduardo Catai, Clarice De Andrade, Paulo H B Rolim, Walderson Klitzke, Dimas Agostinho Da Silva, Fernando Augusto FerrazAbstract:The main purpose of this work was to look for new application for hazardous sewage sludge, wood ash, and Lime Production waste for replacement of traditional natural construction raw materials with high environmental efficiency. The composites reached the 13.0 MPa of axial resistance strength value on the 28th day with 16.07% of the water absorption values, 1.0% of expansion coefficient, and 1.675 g/cm3 of bulk density. The chemical, mineralogical, and granulometric compositions of the raw and developed materials studied by the complementary XRD, XRF, SEM, EDS, and LAMMA methods demonstrate a new mainly amorphous carbonate synthesis, responsible for the new structures formation with mechanical properties that exceed the requirements of the Brazilian technical standards. The results of the leaching and solubility tests showed their compliance with the Brazilian sanitary standards.
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environmentally clean composites with hazardous aluminum anodizing sludge concrete waste and Lime Production waste
Journal of Cleaner Production, 2018Co-Authors: Vsévolod Mymrin, Monica A Avanci, Kirill Alekseev, Paulo H B Rolim, Daniela E Pedroso, Cleber Luis Pedroso, Edgar Winter, Luana Cechin, Alfredo Iarozinski, Rodrigo Eduardo CataiAbstract:Abstract The main purpose of this research was to study the influence of highly alkaline additives of aluminum anodizing waste (AAW) on the mechanical properties and structure formation processes of the cement-less construction material like non-burnt bricks and blocks based on concrete and Lime Production waste. The test specimens from 12 compositions of AAW, concrete waste (CW), and Lime Production waste (LPW) were homogenized, moistened, compacted at 10 MPa and strengthened outdoors. The axial strength values of the developed materials on the 3rd day of curing reached till 5.9 MPa; after the 7th day - till 6.8 MPa; after the 28th day - 7.9 MPa and after the365th day 13.4 MPa. The water absorption values after 28 days of curing went from 12.33 to 13.86% and at 90 days - between 11.18 and 12.74%. The expansion coefficient of the test specimens after 28 days of curing varied between 1.1 and 2.6% and after 365 days between 0.9% and 2.2%. The study was conducted on physical and chemical interaction processes of components of structure formation in the moist alkaline environment performed by complementary methods of X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), laser micro-mass analysis (LAMMA), and atomic absorption spectroscopy (AAS). The study showed that the new mainly amorphous formations were responsible for the physical strengthening during the first year of hydration.