Determining the water content in concrete by gamma scattering method

被引：20

作者：

Priyada, P. ^{[1
]}

Ramar, R. ^{[1
]}

Shivaramu ^{[2
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Radiol Safety Div, Kalpakkam 603102, Tamil Nadu, India

[2] Indira Gandhi Ctr Atom Res, Ex Radiol Safety Div, Kalpakkam 603102, Tamil Nadu, India

来源：

ANNALS OF NUCLEAR ENERGY | 2014年 / 63卷

关键词：

Gamma scattering and transmission; Concrete water content; Moisture profile; Gravimetrical method; HPGe detector; Self-absorption; MOISTURE; FLOW;

D O I：

10.1016/j.anucene.2013.07.049

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：

A gamma scattering method for determining the water content in concrete sample applicable to any porous building material is described. The experimental setup consists of collimated Cs-137 radioactive source and a high resolution HPGe detector based energy dispersive gamma ray spectrometer. Concrete samples of uniform density approximate to 2.4 g/cm(3) are chosen for the study and the scattered intensities found to vary with the amount of water present in the specimen. The scattered intensities are corrected for attenuation effects and the results obtained with reference to a dry sample are compared with those obtained by gravimetrical and gamma transmission methods. A good agreement is seen between gamma scattering results and those obtained by gravimetric and transmission methods within accuracy of 6% and <2% change in water content can be detected. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：565 / 570

页数：6

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