Search Results - "Wilsch, Gerd"
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1
Ion distribution in concrete overlay, mapped by laser induced breakdown spectroscopy (LIBS), modified by an embedded zinc anode
Published in MATEC Web of Conferences (2022)“…Galvanic corrosion protection by embedded zinc anodes is an accepted technique for the corrosion protection of reinforcing steel in concrete. Galvanic currents…”
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Journal Article Conference Proceeding -
2
Galvanic chloride extraction by an embedded zinc anode: Ion distribution mapped by laser induced breakdown spectroscopy (LIBS)
Published in MATEC web of conferences (01-01-2019)“…An important aspect with regard to the service life of zinc based galvanic anodes and the durability of the corrosion protection of steel in concrete is the…”
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Journal Article Conference Proceeding -
3
Effect of heterogeneity on the quantitative determination of trace elements in concrete
Published in Analytical and bioanalytical chemistry (01-05-2006)“…Laser-induced breakdown spectroscopy has been used for quantitative measurement of trace elements, e.g. sulfur and chlorine, in concrete. Chloride and sulfate…”
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Journal Article -
4
Determination of total chloride content in cement pastes with laser-induced breakdown spectroscopy (LIBS)
Published in Cement and concrete research (01-03-2019)“…The presented work discusses the accuracy of Laser Induced Breakdown Spectroscopy (LIBS) in determining the total chloride content in cement pastes. LIBS as an…”
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5
Identification of type of cement through laser-induced breakdown spectroscopy
Published in Construction & building materials (20-10-2020)“…[Display omitted] •Preliminary study on the application of LIBS for cement type classification.•Classification of ten different types of cement.•No…”
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Journal Article -
6
Neues DGZfP‐Merkblatt B14: Quantifizierung von Chlorid in Beton mittels LIBS
Published in Beton- und Stahlbetonbau (01-07-2024)“…Bei der Erhaltung von Stahlbetonbauwerken ist der Chloridgehalt im Beton ein wichtiger Parameter zur Festlegung geeigneter Instandsetzungsmaßnahmen. Die bisher…”
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Journal Article -
7
Laser-induced breakdown spectroscopy - a tool for the chemical investigation of concrete infrastructure
Published in E-journal of Nondestructive Testing (01-09-2022)“…LIBS is a complementary method to XRF and can detect all elements without the need for vacuum conditions. Automated systems are already commercially available…”
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Journal Article -
8
Analyse des Tausalzeintrags in Fahrbahndeckenbetone mit neuartiger Prüftechnik
Published in Beton- und Stahlbetonbau (01-09-2018)“…In den letzten Jahren sind im deutschen Bundesautobahnnetz vermehrt AKR‐Schäden an Betonfahrbahndecken aufgetreten. Ursächlich hierfür ist die Verwendung…”
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9
Periodic mapping of reinforcement corrosion in intrusive chloride contaminated concrete with GPR
Published in Construction & building materials (15-09-2014)“…•Development of Ground Penetrating Radar (GPR) based techniques for corrosion monitoring.•Periodic monitored accelerated reinforcement corrosion with…”
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Journal Article -
10
Untersuchungen zum korrosionsauslösenden Chloridgehalt an nicht rostendem ferritischem Betonstahl in Mörtel
Published in Die Bautechnik (01-01-2020)“…Der maßgebliche Korrosionsschutz von nicht rostendem Stahl in Beton basiert, anders als bei unlegiertem Betonstahl, auf der Ausbildung einer Chromoxidschicht…”
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Journal Article -
11
Sorting of construction and demolition waste by combining LIBS with NIR spectroscopy
Published in E-journal of Nondestructive Testing (01-09-2022)“…Closed material cycles and unmixed material fractions are required to achieve high recovery and recycling rates in the building industry. In construction and…”
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Journal Article -
12
Practical application of Laser-induced Breakdown Spectroscopy (LIBS) for the detection of chlorides in concrete structures
Published in E-journal of Nondestructive Testing (01-09-2022)“…Some reinforced concrete damage is caused by the penetration of harmful substances, such as chlo-rine, into the concrete matrix. This can trigger processes…”
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Journal Article -
13
Interlaboratory comparison for quantitative chlorine analysis in cement pastes with laser induced breakdown spectroscopy
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-04-2023)“…Concrete structures experience severe damage during service, for example due to pitting corrosion of rebars caused by the ingress of chlorine (Cl) into the…”
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Journal Article -
14
Detailed depth profiles of sulfate ingress into concrete measured with laser induced breakdown spectroscopy
Published in Construction & building materials (2009)“…Sulfate attack constitutes a major risk of chemical aggression for concrete and other building materials. Mainly structures exposed to sewage waters and…”
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Journal Article -
15
Neues DGZfP‐Merkblatt B14: Quantifizierung von Chlorid in Beton mittels LIBS
Published in Beton- und Stahlbetonbau (01-07-2024)“…Bei der Erhaltung von Stahlbetonbauwerken ist der Chloridgehalt im Beton ein wichtiger Parameter zur Festlegung geeigneter Instandsetzungsmaßnahmen. Die bisher…”
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Journal Article -
16
Chlorine detection in cement with laser-induced breakdown spectroscopy in the infrared and ultraviolet spectral range
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-10-2009)“…A significant parameter to monitor the status of concrete buildings like bridges or parking garages is the determination of the depth profile of the chlorine…”
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Journal Article -
17
Analyse des Tausalzeintrags in Fahrbahndeckenbetone mit neuartiger Prüftechnik
Published in Beton- und Stahlbetonbau (01-09-2018)“…In den letzten Jahren sind im deutschen Bundesautobahnnetz vermehrt AKR‐Schäden an Betonfahrbahndecken aufgetreten. Ursächlich hierfür ist die Verwendung…”
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Journal Article -
18
Laser Induced Breakdown Spectroscopy (LIBS) im Bauwesen – automatisierte Baustoffanalyse
Published in Beton- und Stahlbetonbau (01-08-2015)“…Die Laser induzierte Breakdown Spektroskopie (LIBS) bietet für die Analyse heterogener, mineralischer Baustoffe, wie z. B. Beton, deutliche Vorteile gegenüber…”
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Journal Article -
19
Untersuchungen zum korrosionsauslösenden Chloridgehalt an nicht rostendem ferritischem Betonstahl in Mörtel
Published in Die Bautechnik (01-01-2020)“…Der maßgebliche Korrosionsschutz von nicht rostendem Stahl in Beton basiert, anders als bei unlegiertem Betonstahl, auf der Ausbildung einer Chromoxidschicht…”
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Journal Article -
20
Laser Induced Breakdown Spectroscopy (LIBS) im Bauwesen - automatisierte Baustoffanalyse
Published in Beton- und Stahlbetonbau (01-08-2015)“…Die Laser induzierte Breakdown Spektroskopie (LIBS) bietet für die Analyse heterogener, mineralischer Baustoffe, wie z. B. Beton, deutliche Vorteile gegenüber…”
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Journal Article