ASTM A944-10 (R2015) PDF Download

The ASTM A944-10 (R2015) standard is titled "Standard Test Method for Comparing Bond Strength of Steel Reinforcing Bars to Concrete Using Beam-End Specimens." This test method provides procedures for determining the relative bond strength between steel reinforcing bars and concrete. It specifically focuses on evaluating the effects of surface preparation and condition, such as bar coatings, on the bond strength.

The bond strengths obtained through this test method cannot be directly used for designing reinforced concrete members. Instead, they are meant for comparisons with results from similar tests conducted using the same method. It is important to note that the bond strengths obtained through this test method are generally higher than those obtained in development or splice tests using beams with the same embedment lengths.

The test specimen used for this method involves casting a beam-end specimen, which is then cured before subjecting it to tensile load testing. The test system includes a loading system, compression reaction plate, and a device for measuring bar displacement.