Open AccessExperimental studies of the deformation properties of concrete based on sulfate-resistant slag Portland cement as a material for hard coatings of agricultural airfields
Author(s) -
Oleksii Yanin,
Tetiana Yemelianova,
S.N. Novikova
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1164/1/012089
Subject(s) - portland cement , shrinkage , materials science , cement , hardening (computing) , cementitious , superplasticizer , deformation (meteorology) , composite material , creep , slag (welding) , properties of concrete , metallurgy , layer (electronics)
The paper presents the results of experimental studies of the deformation properties of concretes based on sulfate-resistant slag Portland cement intended for hard coatings of agricultural tracks and airfields. The effect of concrete hardening conditions on the value of its relative shrinkage deformation has been studied. The role of surfactants (plasticizers) as an additional ingredient to concrete is also investigated. Based on these experimental tests, the regularities of the development of plastic deformations formed in concrete in time at a constant load are revealed. The results of the two series of experiments have made it possible to demonstrate the influence of concrete hardening conditions on the values of creep deformation that are also described and analyzed. This article analyzes the kinetics of concrete shrinkage deformations without additives, comparing the results with those for concrete with the addition of a lignosulfonate superplasticizer and also taking into account various modes of heat and humidity treatment of concrete. A comparison of the deformation properties in concrete with sulfate-resistant Portland slag cement with the deformation properties of concrete based on ordinary Portland cement is carried out. The conclusion is made about suitability of concrete with Portland slag cement for use in construction of hard coating for agricultural tracks and airfield runways.