1.1 This test method describes procedures to establish the relative bond strength of steel reinforcing bars in concrete. 1.2 This test method is intended to determine the effects of surface preparation or condition (such as bar coatings) on the bond strength of deformed steel reinforcing bars (of sizes ranging from No. 10 to No. 36 [No. 3 to No. 11]) to concrete. 1.3 The bond strengths obtained using this test method are not directly applicable to the design of reinforced concre