Shielding and strength tests of silica fume concrete

被引：26

作者：

Rezaei-Ochbelagh, D. ^{[1
]}

Azimkhani, S. ^{[1
]}

Mosavinejad, H. Gasemzadeh ^{[2
]}

机构：

[1] Univ Mohaghegh Ardabili, Fac Sci, Dept Phys, Ardebil, Iran

[2] Univ Guilan, Fac Engn, Dept Civil Engn, Rasht, Iran

来源：

ANNALS OF NUCLEAR ENERGY | 2012年 / 45卷

关键词：

Gamma shielding; Concrete; Lead; Attenuation; Silica fume; Compressive strength; MASS ATTENUATION COEFFICIENTS; PORTLAND-CEMENT; GAMMA-RADIATION; PASTES; BARITE;

D O I：

10.1016/j.anucene.2012.02.006

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In this research, concrete containing different percentages of lead powder and silica fume was investigated as a gamma shield. Gamma photons emitted from gamma sources of Cs-137 and Co-60 were passed through concrete specimens and detected by two inches NaI(Tl) detector to investigate the attenuation coefficients of the specimens. Next, the compressive strengths of the specimens were experimentally studied. A comparison of concrete with and without silica fume revealed that although the addition of silica fume results in a slight reduction of the attenuation coefficient, which is negligible, it increases the compressive strength of concrete significantly. The results suggest the usefulness of 15% silica fume in concrete containing lead as a gamma shield. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：150 / 154

页数：5

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