Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues. 8. Prospects of Using Formaldehyde Modified Tars in Road Construction-Reference-Cited by-同舟云学术

Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues. 8. Prospects of Using Formaldehyde Modified Tars in Road Construction

Published:2023-09-20 Issue:3 Volume:17 Page:701-710
ISSN:1996-4196
Container-title:Chemistry & Chemical Technology
language:
Short-container-title:ChChT

Author:

Gunka Volodymyr, ,Donchenko Myroslava,Demchuk Yuriy,Drapak Iryna,Bratychak Michael, , , , ,

Abstract

Modification of tars with formalin (37 % aqueous solution of formaldehyde) was carried out using various acids as process catalysts with the aim of obtaining new binding materials for road construction. H2SO4, HCl, H3PO4, and СH3COOH were used as catalysts. The modification process was carried out in the temperature range of 378-403 K and for a duration of 0.6-1.0 h. The rheological properties of tars modified with formaldehyde at 333, 343, and 353 K were studied and a comparison of the rheological properties of the obtained bituminous binder materials with oxidized bitumens was carried out.

Publisher

Lviv Polytechnic National University

Subject

General Chemical Engineering,General Chemistry

Reference32 articles.

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