Studies on Neutron Transmission Characteristics of Self-Compacting Concrete

Pai, B.H.V and Nandy, M and Krishnamoorthy, Agrahara and Subbaiah, K . V and Sarkar, P. K. (2016) Studies on Neutron Transmission Characteristics of Self-Compacting Concrete. In: World Conference on Applied Sciences, Engineering & Technology, 24-26 October 2015,, Kumamoto University, Japan.

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Abstract

Concrete is considered to be one of the cheapest and the most suitable material for shielding against neutron radiation. Self-Compacting Concrete (SCC) is preferred for building radiation shields as it can easily pass through congested reinforcement and consolidate all by itself while maintaining its homogeneity. In this study, attempts were made to achieve SCC mixes of grade M25 using the twelve different types of coarse aggregate (CA) samples procured from the geological formations in the state of Karnataka, India. The successful SCC mixes were cast into slabs of size 300x300x100 mm, and subjected to neutron transmission studies. A collimated neutron beam emanating from a 16-Curie Americium Beryllium neutron source was used for the purpose. The values of linear attenuation coefficients (LACs) and half value layer (HVL) thicknesses of the SCC mixes were obtained by measuring the neutron dose rates at the entry and exit points of the beam. The relationships between the HVLs of the SCC mixes were established with (i) hardened properties of SCC mixes, and (ii) properties of CA samples used in the mixes

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Self-Compacting Concrete, Coarse Aggregates, Neutron Transmission, Attenuation Coefficient, Half Value Layer
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 15 Oct 2016 15:38
Last Modified: 15 Oct 2016 15:38
URI: http://eprints.manipal.edu/id/eprint/147165

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