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Title: The strength of nanomodified Rapid hardening concretes at elevated temperature
Authors: Olevych, Yu.
Marushchak, U.
Affiliation: Lviv Polytechnic National University
Bibliographic description (Ukraine): Olevych Yu. The strength of nanomodified Rapid hardening concretes at elevated temperature / Yuriy Olevych, Ulyana Marushchak // Litteris et Artibus : proceedings of the 6th International youth science forum, November 24–26, 2016, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2016. – P. 143–144. – Bibliography: 8 titles.
Conference/Event: Litteris et Artibus
Issue Date: 2016
Publisher: Lviv Polytechnic Publishing House
Country (code): UA
Place of the edition/event: Lviv
Keywords: elevated temperature
rapid hardening concrete
ultrafine supplementary material
compressive strength
Number of pages: 143-144
Abstract: This paper deals with investigation of nanomodified Rapid hardening concretes with ultrafine mineral additives, polycarboxylate type superplasticizer at elevated temperature. Ultrafine particles of supplementary cementations material relating to microheterogeneous systems are characterized by high values of specific interfacial area and “excess surface energy” and improved thermal stability of cement-based composites due to its high reactivity and particle packing effect.
References (International): [1] S. Maheswaran et al., "Effect of high temperature on the properties of ternary blended cement pastes and mortars" Therm Anal Calorim 122, pp. 775–786, 2015. [2] G. Wang et al., "Study on the high-temperature behavior and rehydration characteristics of hardened cement paste" Fire Mater. 2015; 39, pp. 741–750. [3] M. Sanytskyy et al., "Composite cements for refractory materials", Procc. Lviv Polytechnic National University, 414, pp. 58-61, 2000. [4] B. Lothenbach, K. Scrivener and R.D. Hooton Supplementary cementitious materials, Cement and Concrete Research, 41, 3, 2011, 217-229. [5] P. Sikora et al.,"The influnce of elevated temperatures on the properties of cement mortar with the addition nanosilica", Building materials and products, 1, 2016, pp. 28-30. [6] A. R. Sakulich and V.C. Li Nanoscale characterization of engineered cementitious composites (ECC), 2010, pp: 169-175. [7] M. Sanytskyy, U. Maruschak and T. Mazurak Nanomodified Portland cement compositions with high early strength, Construction materials and sanitary equipment, Nauk.-Tech. Coll, Vol. 57, 2016, pp.147 - 154. [8] M. Sanytskyet al., High Performance concretes based on Portland cements modified ultrafine supplementary cementitious materials, 19 Internat. Baustofftagung, Weimar, 2, 2015, 1051-1058.
Content type: Conference Abstract
Appears in Collections:Litteris et Artibus. – 2016 р.

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