Reduction of corrosion of reinforcing steel in concrete using Alkali Ash Material

被引：0
作者：
Rostami, Hossein [1 ]
Tovia, Fernando [2 ]
Masoodi, Reza [2 ]
Bahadory, Mozhgan [3 ]
机构：
[1] Department of Science and Engineering, Philadelphia University, Philadelphia, 19144, PA
[2] Department of Engineering, Philadelphia University, Philadelphia, 19144, PA
[3] Department of Chemistry, Community College of Philadelphia, Philadelphia, 19130, PA
来源：
Journal of Solid Waste Technology and Management | 2015年 / 41卷 / 02期
关键词：
Alkali activated Ash material (AAM); Coating; Concrete; Corrosion; Fly ash; Rebar;
D O I：
10.5276/JSWTM.2015.136
中图分类号：
学科分类号：
摘要：
Approximately 850 million tons of coal are consumed for electric generation and industrial use in the United States each year. This generates about 100 million tons of by-products including bottom ash, fly ash, flue gas desulfurization sludge, and boiler slag. One of these by-products, fly ash, has a potential to reduce the corrosion of reinforcing steel in concert. In this paper, the effect of Alkali activated Ash Material (AAM) on mechanical properties and corrosion protection are investigated. Our experiments showed that coating the rebar with AAM reduces the corrosion rate significantly. The most important advantage of using AAM coated rebar over epoxy coated rebar is their corrosion rate when the coating is damaged. The corrosion rate in a rebar coated with AAM remained almost the same after damaging the coating, while the corrosion rate of a rebar with damaged epoxy coating was the same as an uncoated rebar.
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页码：136 / 145
页数：9
相关论文
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