Građevinar, Vol. 74 No. 08., 2022.
Preliminary communication
https://doi.org/10.14256/JCE.3382.2021
Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios
Ilker Ustabas
Mustafa Demirci
Hasan Baltas
Yılmaz Demir
Sakir Erdogdu
Zafer Kurt
Talip Cakmak
Abstract
This paper presents the results of comprehensive laboratory work conducted for investigating the mechanical and radiation attenuation characteristics of heavyweight concrete produced with pyrite, chromium, and magnetite aggregates and normal weight concretes produced with three different water/ cement (w/c) ratios. Various experiments were conducted to determine the compressive strengths, ultrasound transmission velocities, experimental elasticity modules, and mass attenuation coefficients of these concretes. Heavy and normal weight concretes exhibited similar behaviour in terms of compressive strength and elasticity modules. In heavyweight concretes, with increased w/c ratios (by keeping the amount of water constant and decreasing the amount of cement), the corresponding density increased due to the increase in the amount of high-density aggregates rather than cement in the composition of concrete. Thus, heavyweight concretes produced with a high w/c ratio and low strength can absorb more X-rays. Mass attenuation coefficients converge in heavy and normal weight concretes with different densities at high energy levels.
Keywords
heavyweight concrete; elasticity modules; magnetite aggregate; mass attenuation coefficient
Hrčak ID:
283976
URI
Publication date:
21.9.2022.
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