Published: 2021-11-22

Durability of paving concrete produced in a laboratory setting and obtained in field at expressway construction site

Wojciech Kubissa , Mariusz Dąbrowski , Bartłomiej Chojnacki , Michał A. Glinicki

Abstract

The article describes an experimental study of the properties of concrete designed for the construction of the bottom layer of two-layered road pavement with the exposed aggregate surface. Two types of materials were studied: industrially-produced concrete placed on a highway trial section using slip form technology and concrete produced in a laboratory setting, containing CEM II/A-V and CEM II/A-S Portland cement. The tested mixes contained granite or limestone coarse aggregate. The following basic performance properties were studied: compressive strength and split tensile strength, air void characteristics, freeze-thaw resistance, water absorption rate and chloride penetration. The mechanical properties and freeze-thaw resistance results obtained on the laboratory specimens were similar to those obtained on the cores drilled from the pavement. Despite the observed changes in the air void system parameters, mineral admixtures to Portland cements did not reduce the freeze-thaw resistance of concrete. The compressive strength was higher by up to 19% and sorptivity decreased by up to 22% in concrete containing cement with mineral admixtures.

Keywords:

air-entrained concrete, air void characteristics, CEM I, CEM II/A-S, CEM II/A-V, durability, freeze-thaw resistance, road pavement, sorptivity.

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Kubissa, W., Dąbrowski, M., Chojnacki, B., & Glinicki, M. A. (2021). Durability of paving concrete produced in a laboratory setting and obtained in field at expressway construction site. Roads and Bridges - Drogi I Mosty, 20(4), 397–412. https://doi.org/10.7409/rabdim.021.023

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