Comparison of cold hardiness performance of heavy concrete class B35 obtained by vibrating and centrifuging

Abstract

Comparison of cold hardiness performance of heavy concrete class B35 obtained by vibrating and centrifuging

Shcherban' E.M., Stel'makh S.A., Chernil'nik A.A., Kucherenko D.Yu., Fedorchenko V.A., Yanovskaya A.V.

Incoming article date: 19.04.2019

By centrifuging it is possible to manufacture a wide range of building structures and products from reinforced concrete. Such products have several advantages, being relevant in modern construction, however, it requires careful compliance and quality control of the process. The frost resistance of concrete is one of the main indicators characterizing the durability of such building structures as reinforced concrete pillars of power transmission lines and contact network. The analysis of the literature and a series of experimental studies in the laboratory. The influence of the technology of manufacturing products from heavy concrete on the indicator of their cold resistance has been identified and determined.

Keywords: Racks of power transmission poles, racks of supports of the contact network, centrifugation, vibrating, frost resistance, heterogeneity of concrete, variotropy