Cold Tar-Concrete with Adjustable Terms Formation of the Structure
Abstract: One of the effective ways to control the process of formation of the structure of tar concrete is the complex modification of low-viscosity coal binders with polyisocyanate and distillation residues of phthalic anhydride. This will make it possible to use coal tar with a viscosity C1030 = 10…50 s for the production of cold tar concrete mixtures and significantly reduce the mixture preparation temperature (40…70 °C), and as a result of the interaction of polyisocyanate with distillation residues of phthalic anhydride distillation (contains phthalic acid) and phenol-containing and amine-containing coal binder. It has been established that the optimal temperature for the production of a modified cold tar concrete mixture should be 40…60 ° C, the concentration of polyisocyanate is 4…6 % by weight of coal tar in the mixture, and ODA is 15…25 % by weight of tar. In this work, the initial period of structure formation of modified cold tar concrete and the mechanical properties of tar concrete at the age of one to five days were studied.
Keywords: road asphalt concrete, cubic residues of distillation of ophthalmic anhydride, polyisocyanate (PIC), coal tar, plastic strength.
Pages: 166-171.
For citation: Bespalov, V. L.; Kaplun, K. Yu.; Borisov, M. G. [et al.]. Cold Tar-Concrete with Adjustable Terms Formation of the Structure. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2022. – Issue 2022-1(153) Modern building materials. – Р. 166-171. – URL: https://donnasa.ru/publish_house/journals/vestnik/2022/2022-1(153)/st_24_bespalov_kaplun_borisov_baburin.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2022-1 (153)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture