LOW-CEMENT DOSAGE REFRACTORY CONCRETE WITH LOW THERMAL CONDUCTIVITY

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LUCIAN PAUNESCU
ENIKO VOLCEANOV
BOGDAN-VALENTIN PAUNESCU
IOANA MONICA SURUGIU

Abstract

Super-aluminous refractory concrete (over 94 % Al2O3) with low dosage of cement (9 %) was made, its physical, thermal, and mechanical characteristics being considered suitable for the intermediate layer of a steel casting ladle: porosity of 29.31 %, the apparent density of 2.32 g·cm-3 thermal conductivity of 1.45 W·m-1·K-1, and compressive strength of 34.8 MPa (after heat treatment at 1500 ºC). The aim of the research was achieving a super-aluminous concrete with low-cement dosage, which would have acceptable thermal insulation properties, so that the heat loss through this refractory lining layer would be significantly reduced compared to the reference situation.

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How to Cite
PAUNESCU, L., VOLCEANOV, E., PAUNESCU, B.-V., & SURUGIU, I. M. (2023). LOW-CEMENT DOSAGE REFRACTORY CONCRETE WITH LOW THERMAL CONDUCTIVITY. Journal of Engineering Studies and Research, 28(4), 98-106. https://doi.org/10.29081/jesr.v28i4.011
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Articles
Author Biographies

LUCIAN PAUNESCU

Cosfel Actual SRL, 95-97 Calea Grivitei, sector 1, Bucharest 010705, Romania

ENIKO VOLCEANOV

Metallurgical Research Institute SA, 39 Mehadia street, sector 6, Bucharest 060543, Romania

 Faculty of Science and Materials Engineering, University “Politehnica” of Bucharest, 313 Independence Splai, sector 1, Bucharest 060032, Romania

BOGDAN-VALENTIN PAUNESCU

Consitrans SA, 56 Polona street, sector 1, Bucharest 010494, Romania

IOANA MONICA SURUGIU

Faculty of Computer Science, University “Politehnica” of Bucharest, 313 Independence Splai, sector 1, Bucharest 060032, Romania

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