Effects of ammonium chloride salt added to mixing water on concrete and reinforced concrete subject to atmospheric corrosion

• Published in: Cement and concrete research Vol. 32; no. 1; pp. 91 - 95
• Main Authors: Yilmaz, A.B., Dehri, İ., Erbil, M.
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Ltd 2002; Elsevier Science
• Subjects: Ammonium chloride salt; Applied sciences; Atmospheric corrosion; Buildings. Public works; Concrete; Concrete making (water addition, mixing). Ready mixed concrete; Concretes. Mortars. Grouts; Corrosion; Durability. Pathology. Repairing. Maintenance; Exact sciences and technology; Materials; Reinforced concrete; SO 2 gas; Concrete; SO 2 gas; Reinforced concrete; Atmospheric corrosion; Ammonium chloride salt; Ammonium chloride; Construction materials; Corrosion test; Experimental study; Compression test; Mixing water; Sulfur dioxide
• ISSN: 0008-8846; 1873-3948
• DOI: 10.1016/S0008-8846(01)00634-2

Studied in this paper is the effect of SO
2 as a pollutant gas on concrete and reinforced concrete specimens at various relative humidity (RH) rates prepared with ideal mixing water (IMW) and IMW+80 mg NH
4
+ (NH
4Cl) mixing water. The potential values of reinforcing steel were measured throughout 28 days and compressive strength values of concrete specimens in the same medium were determined at the end of the 28th day. SO
2 gas was observed to have a harmful effect at higher RHs on compressive strength of concrete and to make more negative the potential values of reinforcing steel.