Hazard radiologi radionuklid tabu dalam simen portland semenanjung Malaysia

Translated title of the contribution: Radiological hazard of natural radionuclide in portland cement of peninsular Malaysia

Aznan Fazli Ismail, Muhamad Samudi Yasir, Amran Ab. Majid, Redzuwan Yahaya, Ismail Bahari

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Besides bricks, granites and sands cement is one of the main components of building materials. Cement is made from a combination of rocks and soils which is known to contain natural radioactivity. The objectives of this study were to determine the level of natural radioactivity and associated radiological hazard caused by natural radioactivity in Malaysia's Portland cements. Portland cements samples were obtained from the manufacturers or bought directly from local hardware stores. Natural radionuclide concentrations Of226Ra (238U series), 232Th and 40K were determined using gamma-ray spectrometry. Activity concentrations Of226Ra (238U series), 232Th and 40K were found in the range of 7.76 82.91 Bq kg-1,9.79 - 49.37 Bq kg-1 dan 81.89 - 377.10 Bq kg -1 respectively. Radium equivalents were found in the range of 35.36 ±0.60 to 135.94 ±15.27 Bq kg-1 while the average annual equivalent dose and internal hazard index were found in the range of 80 ±2 to 300 ± 30 μSv year1 and 0.12 ± 0.00 to 056 ± 0.07 respectively.

Original languageUndefined/Unknown
Pages (from-to)407-411
Number of pages5
JournalSains Malaysiana
Volume38
Issue number3
Publication statusPublished - Jun 2009

Fingerprint

radionuclide
cement
hazard
gamma ray spectrometry
radium
hardware
sand
rock
natural radioactivity
soil

Keywords

  • Natural radioactivity
  • Portland cement
  • Radiation hazard

ASJC Scopus subject areas

  • General

Cite this

Hazard radiologi radionuklid tabu dalam simen portland semenanjung Malaysia. / Ismail, Aznan Fazli; Yasir, Muhamad Samudi; Ab. Majid, Amran; Yahaya, Redzuwan; Bahari, Ismail.

In: Sains Malaysiana, Vol. 38, No. 3, 06.2009, p. 407-411.

Research output: Contribution to journalArticle

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