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The influence of graphene admixture on strength properties of cement-based composites
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SYSNO ASEP 0577884 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The influence of graphene admixture on strength properties of cement-based composites Author(s) Pokorný, J. (CZ)
Ševčík, Radek (UTAM-F) RID, SAI, ORCIDNumber of authors 2 Article number 012025 Source Title Journal of Physics: Conference Series, 5th Central European symposium on thermophysics (cCEST 2023), 2628. - Bristol : IOP Publishing, 2023 - ISSN 1742-6588 Number of pages 7 s. Publication form Print - P Action Central European symposium on thermophysics (CEST 2023) /5./ Event date 06.09.2023 - 08.09.2023 VEvent location Poprad Country SK - Slovakia Event type EUR Language eng - English Country GB - United Kingdom Keywords cement-based composites ; nanomaterials ; graphene OECD category Materials engineering Institutional support UTAM-F - RVO:68378297 EID SCOPUS 85179556292 DOI 10.1088/1742-6596/2628/1/012025 Annotation Cement-based composites pose a long tradition in the construction industry and are used in various forms such as structural concretes, masonry and plaster mortars, injection and special mixtures for three-dimensional concrete printing. Fine granular composites intended for injection and printing activities may have increased tend to shrinkage and cracking. The application of nanomaterials may bring a partial solution to toughening of cement-based composites. For this reason, the effect of the addition of various amounts of graphene admixture up to 0.03 wt.% on the strength properties of fine granular cement-based composites was researched. All prepared fresh mixes had the constant w/c ratio, and the behavior of modified composites was compared with plain reference material. On hardened test specimens, compressive strengths obtained after 1, 7 and 28 days of curing time were evaluated. The experimental investigation revealed, on the one hand, the partial worsening of workability of fresh mixes being compensated with an increasing amount of a superplasticizer and, on the other hand, the increment of compressive strength up to 12.5 % even for specimens with the lowest addition of graphene. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2024 Electronic address https://doi.org/10.1088/1742-6596/2628/1/012025
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