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| Experimental Research on the Anticorrosive Mixture of Concrete |
| LI Gu-hua, GAO Bo |
| School of Civil Engineering of Southwest Jiaotong University, Chengdu, Sichuan 610031, China |
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Abstract Research purposes: To improve performances of concrete in sea or soil with some inorganic salt, the author gives the means which the anticorrosive mixture is used in concrete.
Research methods: The performances of concrete with the anticorrosive mixture were investigated in the experiments, such as concrete chloride diffusivity, sulfate resistance and drying/wetting cycle in corrosive environments, etc. Its mechanism was analyzed and discussed.
Research results: (1) Anticorrosive modulus of cement with the anticorrosive mixture was more than 1.0 after 90d in sulphate/water liquid; (2) Modulus of drying and welling cycle in corrosive environments of normal concrete was only 0.79 and one of the concrete with the anticorrosive mixture was 1.28. (3)The coefficient of chloride diffusivity in concrete with the anticorrosive mixture at the age of 28d and 90d is 43.1% and 9.3% of one in the normal concrete at age 28d respectively.
Research conclusions: It is effective to improve interface structure between cement and aggregate and cavity structure in the concrete with the anticorrosive mixture.
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Received: 28 October 2005
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2006, Vol. 23 
