Effect of γ-irradiation on strength of concrete for nuclear-safety structures

被引：69

作者：

Vodák, F ^{[1
]}

Trtík, K ^{[1
]}

Sopko, V ^{[1
]}

Kapicková, O ^{[1
]}

Demo, P ^{[1
]}

机构：

[1] Czech Tech Univ, Fac Civil Engn, CZ-16629 Prague, Czech Republic

来源：

CEMENT AND CONCRETE RESEARCH | 2005年 / 35卷 / 07期

关键词：

concrete; gamma-irradiation; strength; porosity;

D O I：

10.1016/j.cemconres.2004.10.016

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Concrete applied for construction of nuclear power plant (NPP) Temelin (Czech Republic) has been exposed to gamma-irradiation up to dose 6 x 10(5) Gy. Depending on the level of irradiation, changes in strength, porous structure and phase composition of the concrete have been studied. It is found that irradiation lowers both the strength of concrete (about 10%) and volume (resp. surface) of porous space. On the other hand, gamma-irradiation increases the ratio of calcite, CaCO3, in the concrete. Observed effects are discussed with respect to safety of NPPs. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1447 / 1451

页数：5