publication . Article . 2017

Concrete Mixtures With High-Workability For Ballastless Slab Tracks

Olga Smirnova;
Open Access
  • Published: 01 Oct 2017 Journal: Journal of King Saud University - Engineering Sciences, volume 29, pages 381-387 (issn: 1018-3639, Copyright policy)
  • Publisher: Elsevier BV
Abstract The concrete track-supporting layer and the monolithic concrete slab of ballastless track systems are made in-situ. For this reason the concrete mixtures of high workability should be used. Influence of the sand kind, the quartz microfiller fineness and quantity as well as quantity of superplasticizer on workability of fresh concrete and durability of hardened concrete is shown. The compositions of the high-workability concrete mixtures with lower consumption of superplasticizer are developed. The results of the research can be recommended for high performance concrete of ballastless slab track.
free text keywords: Ballastless slab track, Monolithic concrete slab, Workability of fresh concrete, High-performance concrete, Quartz microfiller, Engineering (General). Civil engineering (General), TA1-2040, Composite material, High performance concrete, Slab, Polymer concrete, Superplasticizer, Durability, Geotechnical engineering, Fineness, Materials science
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