کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1454780 1509690 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of three sodium phosphates as corrosion inhibitors for steel reinforcements
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Comparative study of three sodium phosphates as corrosion inhibitors for steel reinforcements
چکیده انگلیسی

A comparative study was performed on the inhibition of steel reinforcement corrosion using three soluble phosphates: sodium monofluorophosphate (Na2PO3F), disodium hydrogen phosphate (Na2HPO4) and trisodium phosphate (Na3PO4). Tests were carried out using ordinary Portland cement (OPC) paste specimens and OPC mortar specimens with embedded steel reinforcements. The corrosion inhibitors were deployed in two different ways: by immersion of OPC specimens in aqueous solutions containing the soluble phosphates (migrating corrosion inhibitor), and by addition of the phosphate powders to a fresh OPC paste (admixture corrosion inhibitor). After curing, the tested specimens were studied using X-ray diffraction, wavelength-dispersive electron microprobe analysis, linear polarisation resistance and electrochemical corrosion potential. A correlation was found between the phosphate content (by migration or admixture) in the OPC matrices and the steel corrosion rate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 43, October 2013, Pages 31–38
نویسندگان
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