Investigation of physical and mechanical properties of spun concrete

Abstract

Investigation of physical and mechanical properties of spun concrete

Shhuckij V.L, Gritcentko M. Yu., Dedukh D.A.

Incoming article date: 12.05.2015

The results of processing of experimental studies of physical and mechanical properties of the samples centrifuged and vibrated. Evaluation of heterogeneity of fresh concrete properties to determine the changes in water-cement ratio (W / C), the residual water content and density of the thickness of the sample centrifuged, and the change of the strength properties of the hardened betona.Analiz experimental data showed that there is a significant change in the average density of the concrete (up to 4 %), the total porosity of the layer in a slurry is increased by almost 18%, while the strength of the concrete is changed in thickness to 18-25%. Using the method of least squares, obtained the strength of concrete patterns of change in the thickness of the samples.

Keywords: spun concrete, physical and mechanical properties of fresh concrete, strength characteristics of hardened concrete