A Novel Corrosion Inhibitor for Preventing the SO42- Transportation in Concrete

Authors

  • Lianfu Wang
  • Baicheng Chang
  • Haidong Yang
  • Nan Duan
  • Ping Zhang

DOI:

https://doi.org/10.54097/03ph8135

Keywords:

Chemical erosion; corrosion inhibitor; corrosion resistance property.

Abstract

Chemical erosion of reinforced concrete by SO42− in saline soil is the main factor of steel corrosion and concrete damage. Therefore, we synthesized a novel corrosion inhibitor based on barium salts for improving the SO42− resistance property of concrete. In this study, the effects of corrosion inhibitor on the workability, compressive strength and SO42− corrosion resistance property of concrete have been investigated. The results showed that with increased of corrosion inhibitor the slump of concrete has increased firstly and then decreased, compressive strength also showed a trend of firstly increasing and then decreasing. More importantly, with the increase of corrosion inhibitor, the SO42− corrosion resistance property of concrete have improved obviously.

Downloads

Download data is not yet available.

References

[1] Ma, H.Y.; Gong, W.; Yu, H.F.; Sun, W. Durability of concrete subjected to dry-wet cycles in various types of salt lake brines. Constr. Build. Mater. 2018, 193, 286–294. DOI: https://doi.org/10.1016/j.conbuildmat.2018.10.211

[2] Hartell, J.A.; Boyd, A.J.; Ferraro, C.C. Sulfate Attack on Concrete: Effect of Partial Immersion. J. Mater. Civi. Eng. 2010, 23, 572–579. DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0000208

[3] Han, T.L.; Wang, X.F.; Li, D.; Han, N.; Xing, F. Damage and degradation mechanism for single intermittent cracked mortar specimens under a combination of chemical solutions and dry-wet cycles. Constr. Build. Mater. 2019, 213, 567–581. DOI: https://doi.org/10.1016/j.conbuildmat.2019.04.085

[4] Chen, F.; Gao, J.M.; Qi, B.; Shen, D.M.; Li, L.Y. Degradation progress of concrete subject to combined sulfate-chloride attack under drying-wetting cycles and flexural loading. Constr. Build. Mater. 2017, 151, 164–171. DOI: https://doi.org/10.1016/j.conbuildmat.2017.06.074

[5] YANG Y.X., LIU X. Q. The role of silica fume in concrete. Heilongjiang Science and Technology Information, 2007, (8):29.

[6] HU F. L., JIANG Y. Q., GU Y, CHEN L., The effect of PCA on the sulfate attack resistance of low water-cement ratio mortar. Science Technology and Engineering, 2013, 7: 2004-2007.

Downloads

Published

27-09-2024

How to Cite

Wang, L., Chang, B., Yang, H., Duan, N., & Zhang, P. (2024). A Novel Corrosion Inhibitor for Preventing the SO42- Transportation in Concrete. Highlights in Science, Engineering and Technology, 117, 18-23. https://doi.org/10.54097/03ph8135