Technology of Chloride-Resistant High Performance Concrete

Abstract:

The chloride-resistant high performance concrete to be used is a basic technology to increase its durability in high chloride-ion environment. On the base of “Application technology guide for anti-seawater concrete of Guangdong province” (consultant version), the raw materials, mix proportion, placement of concrete, and the quality tests etc were discussed in detail.

• Periodical: Key Engineering Materials (Volumes 405-406)
• Pages: 296-302
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.405-406.296
• Online since: January 2009
• Authors: Wei Chen, Hai Hong Mo, Yi Bo Yang, Song Liang, You Wen Chen, Ling Zhen Ba, Jun Sheng Chen, Wen Ying Guo
• Keywords: Chloride Ion, Durability Life, High-Performance Concrete (HPC)

References

[12] The groups of concrete specimen remained for chloride-ion content and the chloride-resistant performance test should be according with the specifications as followings: （1） At least one group concrete specimen is taken from every 500 batches concrete with the same mixture. （2） At least one group concrete specimen is taken from every work shift concrete with the same mixture. （3） At least one group concrete specimen is taken from different structure area concrete with the same mixture. （4） The sample at the 28d standard curing after compressive strength test can be tested the chloride-ion content of concrete. The chloride-ion content and the chloride-resistant performance of concrete should be meet quests in Table 4 and in Table 5 respectively. Table 4 Limits on the chloride-ion content in concrete (by weight of concrete) [%] Steel reinforced concrete Prestressed concrete Chloride-ion content ≤0. 015 ≤0. 009 Table 5 Chloride-resistant performance of concrete [C] Design used year 100 years 70 years 50 years Class of environmental effect C、D E、F C、D E、F C、D E、F 18h quantity of electricity <2800 <2300 <3200 <2300 <4000 <2800 Conclusions The chloride-resistant high performance concrete is a new concrete, and it also has many problems to be resolved. The edit of Application technology guide for anti-seawater concrete of Guangdong province, is a summary of the researches and the experiences of engineering. This paper is mainly to introduce the chloride-resistant HPC and try to make progress in this technology. References.

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