Observation of diffusion behavior of trace elements in hardened cement pastes by LA-ICP-MS

Taiji Chida, Daisuke Sugiyama

研究成果: Conference contribution

抄録

Diffusion coefficients of iodine (I), cesium (Cs) and strontium (Sr) in solid cement blocks of ordinary portland cement (OPC) and low-heat portland cement containing 30 wt% fly ash (FAC) are measured by in-diffusion experiment. By using "laser ablation inductively coupled plasma mass spectrometry", the penetration profiles of trace elements by diffusion were obtained quantitatively in cement solids. The apparent diffusion coefficients of the near-surface of the cement samples were estimated to be about 10 -13 m2 s-1 for I, Cs and Sr. Lower diffusion coefficients were observed for FAC than those obtained for OPC.

本文言語English
ホスト出版物のタイトルMaterials Research Society Symposium Proceedings - Scientific Basis for Nuclear Waste Management XXXI
ページ585-592
ページ数8
出版ステータスPublished - 2008 11 10
外部発表はい
イベント31st International Symposium on the Scientific Basis for Nuclear Waste Management - Sheffield, United Kingdom
継続期間: 2007 9 162007 9 21

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1107
ISSN(印刷版)0272-9172

Other

Other31st International Symposium on the Scientific Basis for Nuclear Waste Management
国/地域United Kingdom
CitySheffield
Period07/9/1607/9/21

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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