Determination of Sulfate Irons in Concrete by Spectrophotometer

Abstract:

The regulation of sulfate irons in concrete was determined by spectrophotometer under different conditions, and the comparison between dissolve acid method and weight method was used to determine sulfate irons in this paper. Results show that if the volume of solution is the same, sulfate ions content in concrete decreases with the increase of sample quality, and stabilizes finally. If the sample quality and the volume of solution is the same, sulfate ions content in concrete increase with the increases of temperature, and stabilizes finally. If the soak period is the same, sulfate ions content in concrete gradually become stable. Results show that the sulfate ions content in concrete approximately follow linear distribution by use of spectrophotometer method and the weight method.

• Periodical: Advanced Materials Research (Volumes 374-377)
• Pages: 1610-1613
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.374-377.1610
• Online since: October 2011
• Authors: Qiao Fen Zhang, Feng Lu, Zu Quan Jin
• Keywords: Concrete, Spectrophotometer Method, Sulfate Ion, Weight Method

References

[1] Zhao Daoming. Simple analysis the gravimetric method of determines the sulphur trioxide content in cement. Gui Zhou Chemical Technology, 2005,30（3）：36-37.

[2] Kang , J . F.. A Few Basic Problems about Concrete Sulfate Attack Research. Concrete , 1995,3 : 9 – 17

[3] Li , Z. J . , Ma , B. G. , Peng , J .. The Microstructure and Sulfate Resistance Mechanism of High-Performance Concrete Containing CNI. Cement and Concrete Composites , 2000,22 (5) : 369 - 377

DOI: 10.1016/s0958-9465(00)00028-7

[4] Zhao Meiling, Tian Wenyu,Fan Changchun etc.The study method of assay the sulphur trioxide content in cement. The Technology and Application of Building, 2007, （4）：24-26.

[5] Liu Xinjiang.Determine the sulfate content in drinking water by the PVA turbidity[J], China Dietetic hygiene and health[J] ，2005，3（5）：57-59.