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High-density concrete: exploring ferro boron effects in neutron and gamma radiation shielding

Roslan, Muhammad Khairi Azri and Ismail, Mohammad and Kueh, Ahmad Beng Hong and Mohamed Zin, Muhammad Rawi (2019) High-density concrete: exploring ferro boron effects in neutron and gamma radiation shielding. Construction and Building Materials, 215 . pp. 718-725. ISSN 0950-0618

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Official URL: http://dx.doi.org/10.1016/j.conbuildmat.2019.04.10...


Aimed to reduce neutron and gamma radiation, this study examined the shielding capability of high-density concretes mixed with Ferro boron in different proportions (25%, 50%, and 75%) replacing granite aggregate, denoted as 25FB, 50FB, and 75FB, respectively, with control specimen designated as CC. The concretes performance was evaluated in terms of mechanical and radiation shielding properties. Cement content, water-cement ratio, and maximum nominal size of aggregates were kept as constant. In general, workability and density reduced and enhanced, respectively, with Ferro boron increment. The increment in concrete strength was achieved with 25FB and 50FB, while 75FB mix experienced a strength reduction due to the segregation problem. Ferro boron concrete showed better radiation shielding, where 25FB, 50FB, and 75FB shielded transmission of neutron and gamma 2, 2.57, and 3.27 times as well as 1.35, 1.72, and 2.92 times, respectively, better than CC. Hence, these findings conclusively show that the increase in the Ferro boron content has progressively increased the shielding properties of the concrete, with notable caution against high inclusion of Ferro boron due to a counter-productive outcome in strength.

Item Type:Article
Uncontrolled Keywords:ferro boron, gamma radiation, gamma shielding
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:89135
Deposited By: Yanti Mohd Shah
Deposited On:26 Jan 2021 16:44
Last Modified:26 Jan 2021 16:44

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