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Research Article Open access CC BY 4.0

Investigation of X-ray Shielding Properties of Concrete Containing Different Percentages of Recycled Lead Shots

M. Alnajjar, S. Yassin, S. Shihada

Journal of Scientific Research and Reports · pp. 1–7 · Published 20 Dec 2016

10.9734/JSRR/2016/28708

Abstract

This study investigated the recycled lead in shot form with maximum radius of 1.18 mm that added to concrete constituents in different percentages of lead-to-cement ratio (20% to 140%) by weight. Several tests on fresh and hardened concrete were carried out. The fresh concrete was tested for slump and workability. The tests of hardened concrete included compressive strength at 7 days, 14 days, and 28 days. The penetration of x-ray to concrete after 14 days from casting date was done using a basic x-ray machine as source at 100KeV and 120KeV energies. An X-Ray Dosimeter STEP OD-01 used as detector to measure the radiation dose rate (µsv/h) that penetrated the concrete samples. It is observed that the lead-to-cement ratio of 80% gives the best results, where the compressive strength is the max at this value as well as the shielding properties improved.

Recycle lead X-ray lead shots concrete compressive strength

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