Release of PAHs from reclaimed asphalt mixtures into the water environment after passivation by cold in-place recycling technology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44994575%3A_____%2F25%3A10003097" target="_blank" >RIV/44994575:_____/25:10003097 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/25:00379668

Result on the web

<a href="https://link.springer.com/article/10.1007/s11356-024-35875-2" target="_blank" >https://link.springer.com/article/10.1007/s11356-024-35875-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11356-024-35875-2" target="_blank" >10.1007/s11356-024-35875-2</a>

Result language

angličtina

Original language name

Release of PAHs from reclaimed asphalt mixtures into the water environment after passivation by cold in-place recycling technology

Original language description

The paper deals with an analysis of the amount of 16 polycyclic aromatic hydrocarbons (PAHs (Polycyclic aromatic hydrocarbons—16 defined by US EPA.)) released from reclaimed asphalt mixtures used in base layers of road surfaces and in binder layers in road construction using cold in-place recycling. For the ten samples tested, the sum of 16 PAHs was determined directly for the crushed asphalt mixture and for its 24-h leachate. The crushed asphalt samples were used to make cylindrical asphalt specimens of the cold recycling mixture. The asphalt specimens were prepared to simulate as realistically as possible the use of the mixtures in road reconstructions implementing the cold in-place recycling technology, which should ensure the passivation of PAHs. The asphalt specimens were subjected to a dynamic leaching test under laboratory conditions with regular replacement of the leaching liquid. The results showed that the concentration of PAHs released into the water environment from the test specimens (passivated material) was approximately 40–50% lower than the amount of PAHs released from the asphalt mixtures in the 24-h leaching test. When compared to the input PAH concentrations in the asphalt mixtures (36–1323 mg.kg−1), on average, only 0.15% of PAHs is released from the passivated material. Dynamic leaching test has shown that the wrapping of the original asphalt mixture with a new binder and its subsequent compaction leads to the preservation of PAHs in the original material at such a level that their total concentrations are reduced by two orders of magnitude.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Environmental Science and Pollution Research

ISSN

0944-1344

e-ISSN

1614-7499

Volume of the periodical

32

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

12

Pages from-to

2455-2466

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85217171097