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Title: Concrete density estimation by rebound hammer method

Concrete is the most common and cheap material for radiation shielding. Compressive strength is the main parameter checked for determining concrete quality. However, for shielding purposes density is the parameter that needs to be considered. X- and -gamma radiations are effectively absorbed by a material with high atomic number and high density such as concrete. The high strength normally implies to higher density in concrete but this is not always true. This paper explains and discusses the correlation between rebound hammer testing and density for concrete containing hematite aggregates. A comparison is also made with normal concrete i.e. concrete containing crushed granite.
Authors:
; ; ;  [1] ; ;  [2] ; ;  [3]
  1. NDT Group, Nuclear Malaysia, Bangi, Kajang, Selangor (Malaysia)
  2. Material Technology Program, Faculty of Applied Sciences, UiTM, Shah Alam, Selangor (Malaysia)
  3. Pusat Penyelidikan Mineral, Jabatan Mineral dan Geosains, Ipoh, Perak (Malaysia)
Publication Date:
OSTI Identifier:
22494541
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1704; Journal Issue: 1; Conference: iNuSTEC2015: International muclear science, technology and engineering conference 2015, Negeri Sembilan (Malaysia), 17-19 Aug 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMIC NUMBER; COMPRESSION STRENGTH; CONCRETES; CORRELATIONS; DENSITY; GAMMA RADIATION; GRANITES; HEMATITE; RADIATION PROTECTION; SHIELDING; TESTING