Detection of Tar in Pavement Asphalt

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F07%3A00016276" target="_blank" >RIV/61989100:27360/07:00016276 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Detection of Tar in Pavement Asphalt

Original language description

In the past in almost every European country tar has been used in road construction. A considerable amount of tar-containing binders can be still present in the recycled asphalts. The detection and determination of coal tar in asphalt pavement material has gained increasing importance in the field analysis. This presentation describes the qualitative and semiquantitative determination of tar by use of phenol and PAHs as markers, because their content in tar is 10 000 times higher than in bitumen.The solvent extraction and thin-layer chromatographic separation of phenols on silica gel sheets with chemical detection have been investigated in different eluent systems. Following the selective isolation, solutions were screened for PAH contamination by useof UV-spectrophotometry. The linear calibration curves allowed the assessment of PAH contamination with greater accuracy and enables the estimation of PAH over a broad concentration range. Preliminary results of our tests show very good a

Czech name

Detekce dehtu v silničním asfaltu

Czech description

In the past in almost every European country tar has been used in road construction. A considerable amount of tar-containing binders can be still present in the recycled asphalts. The detection and determination of coal tar in asphalt pavement material has gained increasing importance in the field analysis. This presentation describes the qualitative and semiquantitative determination of tar by use of phenol and PAHs as markers, because their content in tar is 10 000 times higher than in bitumen.The solvent extraction and thin-layer chromatographic separation of phenols on silica gel sheets with chemical detection have been investigated in different eluent systems. Following the selective isolation, solutions were screened for PAH contamination by useof UV-spectrophotometry. The linear calibration curves allowed the assessment of PAH contamination with greater accuracy and enables the estimation of PAH over a broad concentration range. Preliminary results of our tests show very good a

Type

M - Conference organization

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA104%2F05%2F2296" target="_blank" >GA104/05/2296: Study of asphalt degradation and its environmental impact</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Event location

Tatranská Lomnica

Event country

SK - SLOVAKIA

Event starting date

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Event ending date

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Total number of attendees

1000

Foreign attendee count

500

Type of event by attendee nationality

EUR - Evropská akce