Formulation of mixture proportions and experimental study of heavyweight self-compacting concrete based on magnetite and barite
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Date
2024-07-05
Authors
Palou, Martin
Podhorska, Janette
Ju, Mikwan
Park, Kyoungsoo
Čepčianska, Jana
Žemlička, Matúš
Koplík, Jan
Novotný, Radoslav
0000-0002-4219-4267Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Sringer Nature
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Abstract
The present study aims to determine the mix proportion of binder, heavyweight aggregates, water-to-binder ratio, and additives to develop self-compacting concrete with a bulk density higher than 2600 kg m-3. It also aims to evaluate the engineering properties, pore structure, and microstructure of established heavyweight self-compacting concrete. Barite (BA), magnetite (MAG) or their mix (MIX) were used as fillers, while binder was composed of Portland cement, blast furnace slag, metakaolin, and limestone at a ratio of 65:15:5:15. Based on text results of V-funnel, S-Cone diameter and S-Cone time, the proportion mix and binder: filler: binder to cement ration was optimized as follows: 1) BA 1: 3.5: 0.42, 2) MAG 1: 4: 0.42, and 3) MIX 1: 3.75: 0.42 with maximal aggregate size not exceeding 2 mm. Not only the bulk density was influenced by aggregate, but also, the mechanical properties, shrinkage, dynamic modulus of elasticity pore structure, and microstructure were also found to be dependent on fillers.
Description
Citation
Journal of Thermal Analysis and Calorimetry. 2024, vol. 149, issue 7, p. 10545-10558.
https://link.springer.com/article/10.1007/s10973-024-13418-8
https://link.springer.com/article/10.1007/s10973-024-13418-8
Document type
Peer-reviewed
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Published version
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en