The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
Alexander Michel - One of the best experts on this subject based on the ideXlab platform.
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durability of steel fibre reinforced concrete sfrc exposed to Acid Attack a literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcosmeson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
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Durability of Steel Fibre Reinforced Concrete (SFRC) exposed to Acid Attack – A literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcos-meson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
Mohamed Jemal - One of the best experts on this subject based on the ideXlab platform.
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synthesis characterization and thermochemistry of Acid Attack of b type carbonate fluorapatites
Journal of Thermal Analysis and Calorimetry, 2012Co-Authors: Houda Zendah, Ismail Khattech, Mohamed JemalAbstract:A series of “B” type carbonate fluorapatites (B–CO3–Fap) have been synthesized and characterized by X-ray diffraction, infrared spectroscopy, and chemical analysis. The thermochemical study of phosphoric Acid Attack of the products was performed by a 19% w/w P2O5 solution on raw and deconvoluted curves. The calculated thermogenesis curves show one, two, or four peaks, depending on the mass of dissolved solid and the carbonate content in B–CO3–Fap. The plot of the quantity of heat measured by integrating the raw signal as a function of the dissolved mass in the same volume solution presents three straight segments for low-carbonated and two segments for moderately carbonated ones. From the slopes of line segments, it was possible to determine the enthalpies of dissolution of “B” type carbonate fluorapatites and to deduce that of precipitation of CaF2 and Ca(H2PO4)2·H2O, which have been compared to directly measured or literature data.
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Synthesis, characterization, and thermochemistry of Acid Attack of “B” type carbonate fluorapatites
Journal of Thermal Analysis and Calorimetry, 2011Co-Authors: Houda Zendah, Ismail Khattech, Mohamed JemalAbstract:A series of “B” type carbonate fluorapatites (B–CO3–Fap) have been synthesized and characterized by X-ray diffraction, infrared spectroscopy, and chemical analysis. The thermochemical study of phosphoric Acid Attack of the products was performed by a 19% w/w P2O5 solution on raw and deconvoluted curves. The calculated thermogenesis curves show one, two, or four peaks, depending on the mass of dissolved solid and the carbonate content in B–CO3–Fap. The plot of the quantity of heat measured by integrating the raw signal as a function of the dissolved mass in the same volume solution presents three straight segments for low-carbonated and two segments for moderately carbonated ones. From the slopes of line segments, it was possible to determine the enthalpies of dissolution of “B” type carbonate fluorapatites and to deduce that of precipitation of CaF2 and Ca(H2PO4)2·H2O, which have been compared to directly measured or literature data.
Gregor Fischer - One of the best experts on this subject based on the ideXlab platform.
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durability of steel fibre reinforced concrete sfrc exposed to Acid Attack a literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcosmeson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
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Durability of Steel Fibre Reinforced Concrete (SFRC) exposed to Acid Attack – A literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcos-meson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
Carola Edvardsen - One of the best experts on this subject based on the ideXlab platform.
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durability of steel fibre reinforced concrete sfrc exposed to Acid Attack a literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcosmeson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
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Durability of Steel Fibre Reinforced Concrete (SFRC) exposed to Acid Attack – A literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcos-meson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
Torben Lund Skovhus - One of the best experts on this subject based on the ideXlab platform.
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durability of steel fibre reinforced concrete sfrc exposed to Acid Attack a literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcosmeson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
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Durability of Steel Fibre Reinforced Concrete (SFRC) exposed to Acid Attack – A literature review
Construction and Building Materials, 2019Co-Authors: Victor Marcos-meson, Gregor Fischer, Carola Edvardsen, Torben Lund Skovhus, Alexander MichelAbstract:Abstract Steel Fibre Reinforced Concrete (SFRC) is increasingly used in the construction of civil infrastructure. There is particular interest in the behaviour of SFRC under chemical and bio-chemical exposure, since it can be utilized, among others, for the construction of waste-water and agricultural infrastructure. However, the applicability of SFRC exposed to Acidic environments is hindered by inconsistencies among international regulations. This paper reviews the published literature concerning the durability of SFRC exposed to Acid Attack. Research suggests that the exposure to Acids of uncracked SFRC results in damage similar to what would occur in Plain Concrete (PC). There is insight into the non-critical corrosion of steel fibres embedded in the neutralized concrete layer, not entailing corrosion-induced cracking or spalling and steel fibres have been reported to limit secondary damage by bridging cracks and restraining the progress of the chemical-erosion front. However, there is limited data regarding the residual mechanical performance of cracked SFRC that has been exposed to Acids. Published research suggests the existence of a critical crack width, below 0.3 mm, where the corrosion damage to the steel fibre is non-critical and there is a limited loss of fracture toughness. However, it has been observed that the exposure of cracked SFRC to Acids leads to a larger deterioration of its residual mechanical performance compared to other exposures.
