Paper Title:
Investigation on Protectional Ability on Steel Bar of Compound Corrosion Inhibitor Applied in Seawater-and-Sea Sand Concrete
  Abstract

Seawater and sea sand mixed in concrete will cause rebar of structural concrete corrosion, referring to the principles of composition and design of MCI and Pearson’s Hard-Soft Acid-Base (HSAB) theory, as well as to synergy effect of corrosion inhibitor applied in chemical industry, compound corrosion inhibitor has been designed consisting of diisopropanolamine, surface active agent, inorganic salts and so on. This paper research the relation between polarization potential and time of rebar in seawater-and-sea sand concrete through a series of experiments by adding corrosion inhibitor into seawater-and-sea sand concrete to improve its corrosive resistance characteristics. The results indicate that Z5 has the best inhibition effect. Corrosion inhibitor Z5 comprises 50% of triethanolamine, 20% of dimethylethanolamine (DMEA), 25% of triethoxysilane and 5%lithium nitrate, and its proper content applied in seawater-and-sea sand concrete is 1.5%. Rebar have been embedded in seawater-and-sea sand concrete for the long-term test. The results show that corrosion resistance performance of seawater-and-sea sand concrete with corrosion inhibitor Z5 was significantly improved, and the embedded bar was not corroded at all within 420 days.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Building Materials
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
864-870
DOI
10.4028/www.scientific.net/AMM.71-78.864
Citation
C. X. Xu, Z. W. Ou, J. L. Zhou, H. B. Chen, Q. Chen, "Investigation on Protectional Ability on Steel Bar of Compound Corrosion Inhibitor Applied in Seawater-and-Sea Sand Concrete", Applied Mechanics and Materials, Vols. 71-78, pp. 864-870, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: In Seok Yoon
Abstract:The surface treatment system is one of the best options to extend the service life of marine concrete in terms of cost effectiveness versus...
765
Authors: Yue Qiang, Li Li, Ze Ping He
Abstract:For the purpose of studying the resistance of steel fiber reinforced concrete against the corrosion of different acid, test compressive...
224
Authors: Jian Hua Wu, Yun Lan Liu
Abstract:This paper studies the influence of different mineral admixtures(fly ash and ground granulated blast furnace slag)on the carbonation...
366
Authors: Mengcheng Chen, Kai Wang, Quanshui Wu, Zhen Qin
Chapter 4: Reliability and Durability of Structures
Abstract:According to the service environment of light rail transit and subway structures, in this paper experiments on the corrosion characteristics...
1987
Authors: Xiao Qing Nie, Hong Xiu Du, Rui Zhen Yan
Chapter 4: Building Materials and Processing Technology
Abstract:After 51 C40 HPC specimens with a size of 100mm×100mm×400mm were heated to 400°C, 600°C, 700°C, 800°C for 2 hours, and 300°C and 500°C for...
345