Effect of boron carbide addition on the strength and physical properties of concrete
Fatin Nabilah Tajul Ariffin*1, Roszilah Hamid2, Yusof Abdullah3,
Sahrim Haji Ahmad1 and Yusri Helmi Muhammad1
1School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia.
2Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM,
Bangi, Selangor, Malaysia.
3Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia.
*Corresponding author: firstname.lastname@example.org
Concrete currently has become a conventional material in construction of nuclear reactor due to its properties such as safety, strength and economical in cost. Boron carbide (B4C) was used as additives in concrete are characterized as a good neutron absorber for nuclear reactor applications. The effect of B4C addition on physical and strength properties of concrete samples were investigated. The samples were prepared with three different weight percent (wt%) of B4C powder. The concrete slump test of fresh concrete has been done to investigate the workability of mixtures. Free B4C mixture shows the highest workability compare to 5 and 20 wt% B4C concrete mixture. The density of 0 wt% of B4C is the lowest compared to 5 and 20 wt%. However, after 28 days curing time, the compressive strength test of 20 wt% B4C shows the highest value compare to 5 and 0 wt% B4C concrete respectively. It is obvious that up to 20 wt% B4C can be added to concrete mixture and cause significant strength increased.
Keywords: strength; boron carbide; concrete; radiation shielding;
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