MATEC Web Conf.
Volume 346, 2021International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2021)
|Number of page(s)||8|
|Published online||26 October 2021|
Expansive Concretes for Shotcrete in Tunnel Construction
1 Department of design, Moscow State University of Civil Engineering, 26, Yaroslavskoye Chausse, Moscow, Russian Federation
2 Chair of binding agents and concrete, Moscow State University of Civil Engineering, 26, Yaroslavskoye Chausse, Moscow, Russian Federation
3 ”Planeta K” LLC, 143132, Moscow, Russian Federation
* Corresponding author: email@example.com
This paper presents the results of investigation of properties of fine-grained concrete on expansive cement for fiber-reinforced shotcretes used for metro tunneling. Basic factors affecting material expansion after mixing with water are described. The influence of expansive components on the values of strength indices and volumetric deformations of shotcrete is studied. Improvement of process, physical and mechanical, and operational characteristics of obtained shotcrete is proven.
© The Authors, published by EDP Sciences, 2021
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