Development of high-performance heavy density concrete using different aggregates for gamma-ray shielding
Author
Source
Housing and Building National Research Center Journal
Issue
Vol. 11, Issue 3 (31 Dec. 2015), pp.328-338, 11 p.
Publisher
Housing and Building National Research Center
Publication Date
2015-12-31
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The performance requirements of the concrete of containment structures are mainly radiological protection, structural integrity, durability, etc.
For this purpose, high-performance heavy density concrete can be used.
After extensive trials and errors, 15 concrete mixes were prepared by using coarse aggregates of barite, magnetite, goethite and serpentine with an addition of 10 % silica fume (SF), 20 % fly ash (FA) and 30 % ground granulated blast furnace slag (GGBFS) to the total content of OPC.
The compressive strength of hardened concrete was determined after 7, 28 and 90 days.
In some concrete mixes, compressive strength was also tested up to 90 days upon replacing sand with the fine portions of magnetite, barite and goethite.
The results revealed that, the concrete mixes containing magnetite coarse aggregate with 10 % SF reaches the highest compressive strength values exceeding over the M60 requirement by 14 % after 28 days.
Whereas, the compressive strength of concrete containing barite aggregate was very close to M60 concrete and exceeds for 90 days.
The results also indicated that, the compressive strength of the high-performance concrete incorporating magnetite as fine aggregate was significantly higher than that containing sand by 23%.
Also, concrete made with magnetite fine aggregate has higher physico-mechanical properties than those containing barite and goethite.
High-performance concrete incorporating magnetite as fine aggregate enhances the shielding efficiency against c-rays.
American Psychological Association (APA)
Awdah, Ahmad S.. 2015. Development of high-performance heavy density concrete using different aggregates for gamma-ray shielding. Housing and Building National Research Center Journal،Vol. 11, no. 3, pp.328-338.
https://search.emarefa.net/detail/BIM-654464
Modern Language Association (MLA)
Awdah, Ahmad S.. Development of high-performance heavy density concrete using different aggregates for gamma-ray shielding. Housing and Building National Research Center Journal Vol. 11, no. 3 (Dec. 2015), pp.328-338.
https://search.emarefa.net/detail/BIM-654464
American Medical Association (AMA)
Awdah, Ahmad S.. Development of high-performance heavy density concrete using different aggregates for gamma-ray shielding. Housing and Building National Research Center Journal. 2015. Vol. 11, no. 3, pp.328-338.
https://search.emarefa.net/detail/BIM-654464
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 337-338
Record ID
BIM-654464