Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios

Građevinar

article

Ilker Ustabas¹  Mustafa Demirci²  Hasan Baltas³  Yılmaz Demir⁴  Sakir Erdogdu⁵  Zafer Kurt¹  Talip Cakmak¹ 

[1] Recep Tayyip Erdogan University, Rize, Turkey Engineering and Arts Faculty Department of Civil Engineering;Recep Tayyip Erdogan University, Rize, Turkey Technical Vocational School Construction Technology Program;Recep Tayyip Erdogan University, Rize, Turkey Engineering and Arts Faculty Science and Literature Faculty, Department of Physics;Recep Tayyip Erdogan University, Rize, Turkey Engineering and Arts Faculty Department of Geology Engineering;Karadeniz Technical University, Trabzon, Turkey Engineering and Arts Faculty

关键词: heavy weight concrete;    elasticity modules;    magnetite aggregate;    mass attenuation coefficient;   

DOI  :  10.14256/JCE.3382.2021

学科分类：社会科学、人文和艺术（综合）

来源: Hrvatsko Drustvo Gradevinskih Inzenjera

【 摘 要 】

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.

【 授权许可】

CC BY