Analysis on the Radioactivity and Sulfate for the Building Rock Materials in Tianjin City

详细信息   

• 责任者：Yu Xiuying （Testing Center of Tianjin Geology and Mineral Resources ; Tianjin ; 300191 China） ; Wang Ning
• 刊名：Geological Survey and Research
• 出版年：2008
• 卷期：31(2)
• 关键词：建筑石料 ; building stone ; 放射化学分析 ; radiochemical analysis
• 页码：p.130-137
• 图表：3 illus., 3 tables, 7 refs.
• 分类号：0900
• issnNo：ISSN1672-4135
• isbnNo：CN12-1353/P

摘要

In order to understand the radioactivity and sulfate of the building materials in Tianjin, data from 16 200 samples were colleted in the mountain area, northern Tianjin. The authors analyzed the samples both in the field and lab., and made a contrast for their radioactivity data. And the authors also tested the sulfate and sulfide content. The conclusions suggest: 1) there are 2 samples in which the natural radionuclide goes beyond the national standard and can’t be used as principal building materials, and 2 can only be used as boiling materials with 25% hollow ratio. The others’ use is no limit; 2) almost rock materials can be used as A-type decorating materials, only 1 place as C-type, and 1 place can be used as monuments, sea walls and abutments etc.; abd 3) contents in the sulfate and sulfide are generally low, the rock materials can be used as building macadam. As general, almost all the rock materials can be used as building materials, there only a few samples where the use of the rock materials is limited.