Determination of the Effective Working Time of Concretes Prepared on Modified Secondary Cubic Residues Phenolic-Acetone Production
V. L. Bespalov, S. G. Goshko, Yu. Yu. Goshko, A. V. Grishko
Donbas National Academy of Civil Engineering and Architecture
Abstract: The paper studies the patterns of change in the modulus of elasticity of concrete and related characteristics prepared using modified secondary bottoms of phenol-acetone production under conditions close to operational. Frequency dependence of the complex modulus of elasticity E* of fine-grained concrete on a complex organic binder (viscous-plastic VKOFAP, modified with 1.5 wt. % polyvinyl chloride screenings (OPVC) and 30 % phthalic anhydride distillation residue (PDPA)) at temperatures: 1 – (–20 °С); 2 – (–10 °С); 3–0 °С; 4–10 °С; 5–20 °С; 6–30 °С; 7–40 °С; 8–50 °С – they have the character of straight lines in semi-logarithmic coordinates. The results of the study indicate sufficiently high critical stresses of concrete using a complex organic binder scr = 0.7 MPa. Consequently, coatings built from concrete mixes based on a complex organic binder will be durable under the action of traffic loads.
Keywords: road asphalt concrete, viscoplastic secondary cubic residue of phenol-acetone production, modulus of elasticity, coefficient of plasticity.
Pages: 160-165.
Link for citation: Bespalov, V. L.; Goshko, S. G.; Goshko, Yu. Yu. [et al.]. Determination of the Effective Working Time of Concretes Prepared on Modified Secondary Cubic Residues Phenolic-Acetone Production. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2022. – Issue 2022-1(153) Modern building materials. – Р. 160-165. – URL: https://donnasa.ru/publish_house/journals/vestnik/2022/2022-1(153)/st_23_bespalov_goschko_goschko_grischko.pdf (date of access: 15.10.2024). (in Russian)
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