Geopolimer Concrete for Radiation Shielding Application

Nurhasmi Nurhasmi; Dahlang Tahir; Bualkar Abdullah; Asnaeni Ansar; Sultan Ilyas; Inayatul Mutmainna; Wawan Indrawan Madda

doi:10.4028/www.scientific.net/MSF.966.41

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HomeMaterials Science ForumMaterials Science Forum Vol. 966Geopolimer Concrete for Radiation Shielding...

Geopolimer Concrete for Radiation Shielding Application

Abstract:

Abstract. Ashield of gamma radiation with a basic material of fly ash (FA) type C have been made by additional graphite (G) and Fe₂O₃ (F) using Retsch MM 400 for 30 minutes at the frequency 10 Hz. GF is added to the FA matrix with mass variations of 0%, 1%, 2%, and 3%. Samples were activated with alkali solution at 70°C. Density obtained by calculation of each sample FA_GF0, FA_GF1, FA_GF2, and FA_GF3 are 2.09 g/cm^-3, 2.111 g/cm^-3, 2.113 g/cm^{- 3}, and 2.115 g/cm^-3, respectively. For sample FA_GF3 the density is high but the attenuation coefficient is small. This is influenced by the presence of graphite content in the sample. Graphite also plays a role in forming pores caused the radiation more transmitting through the samples. It can be concluded that the very good composition of the additional of GF is 2% with half value layer (HVL) is 3.980 cm and mean free path (MFP) is 5.743 cm.

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Periodical:

Materials Science Forum (Volume 966)

Pages:

41-47

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.966.41

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Online since:

August 2019

Authors:

Nurhasmi Nurhasmi, Dahlang Tahir, Bualkar Abdullah, Asnaeni Ansar, Sultan Ilyas, Inayatul Mutmainna, Wawan Indrawan Madda

Keywords:

Fe₂O₃, Fly Ash, Graphite, HVL, MFP

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