Study on High Amount Mineral Admixtures Concrete Performance

Huang, Zhi De

doi:10.4028/www.scientific.net/amm.357-360.667

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The external measures mainly refer to the mixing of rust inhibitors [6,7]. The main function of the rust inhibitor is to migrate to the surface of rebars in the form of gas phase or liquid phase, and oxidize the surface into a thick passive film, thereby slowing down or preventing the corrosion of rebars [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Compound Rust Inhibitor on the Performance of Concrete with a Large Amount of Mineral Admixtures

Lu¹,

Li²,

Luo³

et al. 2020

RCMA

View full text Add to dashboard Cite

The corrosion of rebars in concrete is a major cause of the falling bearing capacity of concrete structures. The durability of concrete could be effectively enhanced by adding mineral admixtures. Many studies have shown that rust inhibitors can effectively prevent rebar corrosion. Taking commonly used slag, fly ash, and silica fume as mineral admixtures, this paper explores how an alcohol-amine compound rust inhibitor affects the compressive strength, chloride penetration resistance, carbonation resistance, and rebar corrosion resistance of concrete with a large amount of mineral admixtures. The research results show that the addition of rust inhibitor hinders the early hydration of cementitious materials in concrete; the chloride diffusivity and carbonation depth of concrete were minimized, when the ratio of N,N-dimethylethanolamine (DMEA) to sodium monofluorophosphate (MFP) in the compound rust inhibitor stands at 15:1; the addition of rust inhibitor clearly suppressed the corrosion loss of the rebars in concrete, resulting in a low rebar corrosion rate. The research results provide experimental evidence for reducing rebar corrosion in reinforced concrete.

show abstract

Section: Introductionmentioning

confidence: 99%