X-ray radiation shielding properties of cement mortars prepared with different types of aggregates

Tung Chai Ling, Chi Sun Poon, Wai Shung Lam, Tai Po Chan, Karl Ka Lok Fung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)


The types of aggregate used play an important role in determining the effectiveness of X-ray radiation protection of cement mortars. Cement mortars were prepared using fine aggregates obtained from six different sources. The influence of aggregate type on X-ray shielding properties was studied. The results showed that mortars prepared with barite and lead-laden recycled cathode ray tube funnel glass provided better shielding properties than mortars prepared with natural sand, natural crushed fine stone or crushed beverage glass. This is attributed to the use of dense aggregates being able to interact with X-ray radiation, thus reducing the depth of penetration. Due to the superior shielding properties of the mortar containing barite, it can be used to replace traditional sand mortar for applications as rendering or plastering materials for the construction of medical diagnostic and CT scanner rooms.
Original languageEnglish
Pages (from-to)1133-1141
Number of pages9
JournalMaterials and Structures/Materiaux et Constructions
Issue number7
Publication statusPublished - 1 Jul 2013


  • Cement mortar
  • Funnel glass
  • Radiation shielding
  • Recycled aggregate
  • Waste recycling

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Mechanics of Materials
  • General Materials Science


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