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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 250-253A New Technique to Manufacture Desalinated Sea...

A New Technique to Manufacture Desalinated Sea Sand Concrete and its Properties

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Abstract:

For the purpose of enhancing concrete performance and conserving freshwater, we proposed a new technique of making desalinated sea sand concrete. Salinity qualified desalinated sea water with alkaline potential is obtained through a set of self-made dual membrane electrodialyzers and membrane electrolyzers. Sea sand is sluiced by the obtained desalinated sea water before it is made into concrete. The desalinating device is portable and easy operating, and outputs qualified sea water to the requirements of desalinating sea sand. The method of sluicing sea sand is proved to be practical and effective. It is found that, comparing to standard concrete, concrete made of desalinated sea sand and alkaline potential water has better mechanics performance and better protection for steel bars. Both desalinated sea water and sea sand contain a certain amount of OH^- ions, which helps reducing the ratio of Cl^-/OH^- in concrete and thus inhibit the Cl^- ions from rotting or carbonating concrete; concrete durability is therefore enhanced.

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Advanced Building Materials

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Periodical:

Advanced Materials Research (Volumes 250-253)

Pages:

283-290

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.250-253.283

Citation:

Cite this paper

Online since:

May 2011

Authors:

Bing Quan Sun, Li Jiu Wang, Chao He Chen, Hong Wang

Keywords:

Alkaline Potential Water, Desalinated Sea Sand Concrete, Desalination, Electrodialysis, Sea Sand Sluicing

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