The Experts below are selected from a list of 27894 Experts worldwide ranked by ideXlab platform
Willy Verstraete - One of the best experts on this subject based on the ideXlab platform.
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Chemical and microbiological tests to simulate sulfuric Acid Corrosion of polymer-modified concrete
Cement and Concrete Research, 2001Co-Authors: J Monteny, N. De Belie, E Vincke, Willy Verstraete, Luc TaerweAbstract:Abstract In certain industrial activities sulfuric Acid is used during the production process, which may cause degradation of concrete structures. Another important phenomenon where sulfuric Acid is responsible for concrete Corrosion is biogenic sulfuric Acid Corrosion, which occurs often in sewer systems. Because previous investigations have already pointed out the difference between purely chemical sulfuric Acid Corrosion and biogenic sulfuric Acid Corrosion two different tests were performed: a chemical test and a microbiological test. Five different concrete compositions were used in the tests, including a reference mixture with high sulfate resistant portland cement and four different polymer cement concrete with a styrene–acrylic ester polymer, an acrylic polymer, a styrene butadiene polymer and a vinylcopolymer, respectively. The concrete composition with the styrene–acrylic ester polymer showed in both tests a higher resistance than the reference mixture while the compositions with the acrylic polymer and the styrene butadiene polymer had a lower resistance than the reference mixture. The concrete composition with the vinylcopolymer did not induce the same results in both tests. The results of the chemical test indicated a slight increase in resistance compared with the reference mixture while the opposite was noticed for the microbiological test.
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chemical microbiological and in situ test methods for biogenic sulfuric Acid Corrosion of concrete
Cement and Concrete Research, 2000Co-Authors: J Monteny, N. De Belie, E Vincke, Luc Taerwe, Anne Beeldens, D Van Gemert, Willy VerstraeteAbstract:Abstract Biogenic sulfuric Acid Corrosion is often a problem in sewer environment: it can lead to a fast degradation of the concrete structures. Since the involvement of bacteria in the Corrosion process was discovered, considerable microbiological research has been devoted to the understanding of the corrosive process. Mechanical engineers have focused on experiments comparing the resistance of several concrete mixes against biogenic sulfuric Acid Corrosion. Because of a lack of standardised methods, different test methods have been used, and various parameters have been modified to evaluate the resistance of the materials. The research done on sulfuric Acid Corrosion of concrete can roughly be divided in three groups: chemical tests, microbial simulation tests, and exposure tests in situ. In this article, an overview of the recent developments in the test methods for biogenic sulfuric Acid Corrosion and the obtained results are presented. Possible differences between biogenic sulfuric Acid Corrosion and chemical sulfuric Acid Corrosion are delineated.
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a new test procedure for biogenic sulfuric Acid Corrosion of concrete
Biodegradation, 1999Co-Authors: E Vincke, J Monteny, Steven Verstichel, Willy VerstraeteAbstract:A new test method is described for biogenic sulfuric Acid Corrosion of concrete, more specifically in sewer con-ditions.The aim of the new test method is the development of an accelerated and reproducible procedure formonitoring the resistance of different types of concrete with regard to biogenic sulfuric Acid Corrosion. This exper-imentalprocedure reflects worst case conditions by providing besides H2S, also an enrichment of thiobacilli andbiologically produced sulfur. By simulating the cyclic processes occurring in sewer pipes, significant differencesbetween concrete mixtures could be detected after 51 days. Concrete modified by a styrene-acrylic ester polymerdemonstrated a higher resistance against biogenic sulfuric Acid attack.
J Monteny - One of the best experts on this subject based on the ideXlab platform.
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Chemical and microbiological tests to simulate sulfuric Acid Corrosion of polymer-modified concrete
Cement and Concrete Research, 2001Co-Authors: J Monteny, N. De Belie, E Vincke, Willy Verstraete, Luc TaerweAbstract:Abstract In certain industrial activities sulfuric Acid is used during the production process, which may cause degradation of concrete structures. Another important phenomenon where sulfuric Acid is responsible for concrete Corrosion is biogenic sulfuric Acid Corrosion, which occurs often in sewer systems. Because previous investigations have already pointed out the difference between purely chemical sulfuric Acid Corrosion and biogenic sulfuric Acid Corrosion two different tests were performed: a chemical test and a microbiological test. Five different concrete compositions were used in the tests, including a reference mixture with high sulfate resistant portland cement and four different polymer cement concrete with a styrene–acrylic ester polymer, an acrylic polymer, a styrene butadiene polymer and a vinylcopolymer, respectively. The concrete composition with the styrene–acrylic ester polymer showed in both tests a higher resistance than the reference mixture while the compositions with the acrylic polymer and the styrene butadiene polymer had a lower resistance than the reference mixture. The concrete composition with the vinylcopolymer did not induce the same results in both tests. The results of the chemical test indicated a slight increase in resistance compared with the reference mixture while the opposite was noticed for the microbiological test.
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chemical microbiological and in situ test methods for biogenic sulfuric Acid Corrosion of concrete
Cement and Concrete Research, 2000Co-Authors: J Monteny, N. De Belie, E Vincke, Luc Taerwe, Anne Beeldens, D Van Gemert, Willy VerstraeteAbstract:Abstract Biogenic sulfuric Acid Corrosion is often a problem in sewer environment: it can lead to a fast degradation of the concrete structures. Since the involvement of bacteria in the Corrosion process was discovered, considerable microbiological research has been devoted to the understanding of the corrosive process. Mechanical engineers have focused on experiments comparing the resistance of several concrete mixes against biogenic sulfuric Acid Corrosion. Because of a lack of standardised methods, different test methods have been used, and various parameters have been modified to evaluate the resistance of the materials. The research done on sulfuric Acid Corrosion of concrete can roughly be divided in three groups: chemical tests, microbial simulation tests, and exposure tests in situ. In this article, an overview of the recent developments in the test methods for biogenic sulfuric Acid Corrosion and the obtained results are presented. Possible differences between biogenic sulfuric Acid Corrosion and chemical sulfuric Acid Corrosion are delineated.
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a new test procedure for biogenic sulfuric Acid Corrosion of concrete
Biodegradation, 1999Co-Authors: E Vincke, J Monteny, Steven Verstichel, Willy VerstraeteAbstract:A new test method is described for biogenic sulfuric Acid Corrosion of concrete, more specifically in sewer con-ditions.The aim of the new test method is the development of an accelerated and reproducible procedure formonitoring the resistance of different types of concrete with regard to biogenic sulfuric Acid Corrosion. This exper-imentalprocedure reflects worst case conditions by providing besides H2S, also an enrichment of thiobacilli andbiologically produced sulfur. By simulating the cyclic processes occurring in sewer pipes, significant differencesbetween concrete mixtures could be detected after 51 days. Concrete modified by a styrene-acrylic ester polymerdemonstrated a higher resistance against biogenic sulfuric Acid attack.
Luc Taerwe - One of the best experts on this subject based on the ideXlab platform.
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Chemical and microbiological tests to simulate sulfuric Acid Corrosion of polymer-modified concrete
Cement and Concrete Research, 2001Co-Authors: J Monteny, N. De Belie, E Vincke, Willy Verstraete, Luc TaerweAbstract:Abstract In certain industrial activities sulfuric Acid is used during the production process, which may cause degradation of concrete structures. Another important phenomenon where sulfuric Acid is responsible for concrete Corrosion is biogenic sulfuric Acid Corrosion, which occurs often in sewer systems. Because previous investigations have already pointed out the difference between purely chemical sulfuric Acid Corrosion and biogenic sulfuric Acid Corrosion two different tests were performed: a chemical test and a microbiological test. Five different concrete compositions were used in the tests, including a reference mixture with high sulfate resistant portland cement and four different polymer cement concrete with a styrene–acrylic ester polymer, an acrylic polymer, a styrene butadiene polymer and a vinylcopolymer, respectively. The concrete composition with the styrene–acrylic ester polymer showed in both tests a higher resistance than the reference mixture while the compositions with the acrylic polymer and the styrene butadiene polymer had a lower resistance than the reference mixture. The concrete composition with the vinylcopolymer did not induce the same results in both tests. The results of the chemical test indicated a slight increase in resistance compared with the reference mixture while the opposite was noticed for the microbiological test.
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chemical microbiological and in situ test methods for biogenic sulfuric Acid Corrosion of concrete
Cement and Concrete Research, 2000Co-Authors: J Monteny, N. De Belie, E Vincke, Luc Taerwe, Anne Beeldens, D Van Gemert, Willy VerstraeteAbstract:Abstract Biogenic sulfuric Acid Corrosion is often a problem in sewer environment: it can lead to a fast degradation of the concrete structures. Since the involvement of bacteria in the Corrosion process was discovered, considerable microbiological research has been devoted to the understanding of the corrosive process. Mechanical engineers have focused on experiments comparing the resistance of several concrete mixes against biogenic sulfuric Acid Corrosion. Because of a lack of standardised methods, different test methods have been used, and various parameters have been modified to evaluate the resistance of the materials. The research done on sulfuric Acid Corrosion of concrete can roughly be divided in three groups: chemical tests, microbial simulation tests, and exposure tests in situ. In this article, an overview of the recent developments in the test methods for biogenic sulfuric Acid Corrosion and the obtained results are presented. Possible differences between biogenic sulfuric Acid Corrosion and chemical sulfuric Acid Corrosion are delineated.
E Vincke - One of the best experts on this subject based on the ideXlab platform.
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Chemical and microbiological tests to simulate sulfuric Acid Corrosion of polymer-modified concrete
Cement and Concrete Research, 2001Co-Authors: J Monteny, N. De Belie, E Vincke, Willy Verstraete, Luc TaerweAbstract:Abstract In certain industrial activities sulfuric Acid is used during the production process, which may cause degradation of concrete structures. Another important phenomenon where sulfuric Acid is responsible for concrete Corrosion is biogenic sulfuric Acid Corrosion, which occurs often in sewer systems. Because previous investigations have already pointed out the difference between purely chemical sulfuric Acid Corrosion and biogenic sulfuric Acid Corrosion two different tests were performed: a chemical test and a microbiological test. Five different concrete compositions were used in the tests, including a reference mixture with high sulfate resistant portland cement and four different polymer cement concrete with a styrene–acrylic ester polymer, an acrylic polymer, a styrene butadiene polymer and a vinylcopolymer, respectively. The concrete composition with the styrene–acrylic ester polymer showed in both tests a higher resistance than the reference mixture while the compositions with the acrylic polymer and the styrene butadiene polymer had a lower resistance than the reference mixture. The concrete composition with the vinylcopolymer did not induce the same results in both tests. The results of the chemical test indicated a slight increase in resistance compared with the reference mixture while the opposite was noticed for the microbiological test.
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chemical microbiological and in situ test methods for biogenic sulfuric Acid Corrosion of concrete
Cement and Concrete Research, 2000Co-Authors: J Monteny, N. De Belie, E Vincke, Luc Taerwe, Anne Beeldens, D Van Gemert, Willy VerstraeteAbstract:Abstract Biogenic sulfuric Acid Corrosion is often a problem in sewer environment: it can lead to a fast degradation of the concrete structures. Since the involvement of bacteria in the Corrosion process was discovered, considerable microbiological research has been devoted to the understanding of the corrosive process. Mechanical engineers have focused on experiments comparing the resistance of several concrete mixes against biogenic sulfuric Acid Corrosion. Because of a lack of standardised methods, different test methods have been used, and various parameters have been modified to evaluate the resistance of the materials. The research done on sulfuric Acid Corrosion of concrete can roughly be divided in three groups: chemical tests, microbial simulation tests, and exposure tests in situ. In this article, an overview of the recent developments in the test methods for biogenic sulfuric Acid Corrosion and the obtained results are presented. Possible differences between biogenic sulfuric Acid Corrosion and chemical sulfuric Acid Corrosion are delineated.
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a new test procedure for biogenic sulfuric Acid Corrosion of concrete
Biodegradation, 1999Co-Authors: E Vincke, J Monteny, Steven Verstichel, Willy VerstraeteAbstract:A new test method is described for biogenic sulfuric Acid Corrosion of concrete, more specifically in sewer con-ditions.The aim of the new test method is the development of an accelerated and reproducible procedure formonitoring the resistance of different types of concrete with regard to biogenic sulfuric Acid Corrosion. This exper-imentalprocedure reflects worst case conditions by providing besides H2S, also an enrichment of thiobacilli andbiologically produced sulfur. By simulating the cyclic processes occurring in sewer pipes, significant differencesbetween concrete mixtures could be detected after 51 days. Concrete modified by a styrene-acrylic ester polymerdemonstrated a higher resistance against biogenic sulfuric Acid attack.
Wang Xian - One of the best experts on this subject based on the ideXlab platform.
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Inhibition mechanism analysis & research of the poly aspartic Acid Corrosion inhibitor
Cleaning World, 2012Co-Authors: Wang XianAbstract:It was introduced inhibition mechanism of the poly aspartic Acid Corrosion inhibitor.Meanwhile,it was summarizeed the research progress of the inhibition mechanismf the poly aspartic Acid Corrosion inhibitor and the development trend of the poly aspartic Acid Corrosion inhibitor in this article.
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The Inhibition Mechanism Analysis & Research of the Poly Aspartic Acid Corrosion Inhibitor
2012Co-Authors: Wang XianAbstract:It was introduced inhibition mechanism of the poly aspartic Acid Corrosion inhibitor. Meanwhile, it was summarizeed the research progress of the inhibition mechanismf the poly aspartic Acid Corrosion inhibitor and the development trend of the poly aspartic Acid Corrosion inhibitor in this article.
