| Title |
Effects of Corrosion Conditions on the Adhesion of Coated Steels with Polymer Cement Slurry |
| Authors |
Young-Kug Jo ; Young-Jib Kim ; Yang-Seob Soh |
| Keywords |
Polymer cement slurry ; polymer dispersion ; adhesion ; pull-out test ; coated steel |
| Abstract |
The purpose of this study is to evaluate the effects of curing conditions on the adhesion of coated steels with polymer cement slurry. Coated steels using polymer cement slurry, which is made from four types of polymer dispersions such as St/BA-1, St/BA-2, PA and SBR are prepared, and tested for adhesion test in the conditions such as dry cure(20℃, R.H. 50%) underwater cure(20℃), heat cure and out door exposed cure, tension test of coated rebars and pull-out test of coated rebar embedded in the plain concrete.
From the test results, the adhesion of coated steel plate with polymer cement slurry is excellent in various curing conditions and cure age. The bond strength of coated rebar with polymer cement slurry is a little smaller than that of coated rebar with epoxy resin. However, the maximum slips of coated rebar with polymer cement slurry are large.
It is apparent that the choice of polymer type and curing condition are important to improve the adhesion between polymer cement slurry and steel plate, coated rebar and plain concrete |