ASTM C1583 is used to measure the tensile strength of concrete surfaces. This test method can be used in the concrete construction industry as an indicator of the adequacy of surface preparation before applying a repair or an overlay material. It can also be used to measure bond strength of the material to the substrate.

ASTM C1583

When the test is performed on the surface of a concrete repair or an overlay material, it determines the bond strength to the substrate or the tensile strength of either the overlay or substrate, whichever is weaker. The test specimen is created by drilling a shallow core into and perpendicular to the surface of the substrate, leaving the intact core attached to the concrete. A steel disk should be bonded to the top surface of the test specimen. Next, a tensile load is applied to the steel disk until a rupture occurs.

Testing Procedure

For testing according to ASTM C1583, you will need a core drill, core barrel, steel disk and a tensile loading device. For your tensile testing machine, you will need a load-indicating system with nominal capacity of 22 kN (5,000 lbf) capable of applying a load at the specified rate. The loading device should include a tripod or bearing ring for distributing the force to the supporting surface.

Next, prepare the specimens according to the official standard. Apply the tensile load at a constant rate so that the tensile stress increases at a rate of 35 6 15 kPa/s [5 6 2 psi/s]. Finally, Record the failure load and the failure mode.

For ASTM C1583, an electromechanical universal test machine would work best. Take a look at our 312 Series which can load to 25 kN (5,500 lb). By means of our testing expertise and modular product design, we will help find the testing solution that is right for you. Give one of our application engineers a call today for help with creating the best budget and testing plan according to ASTM C1538.

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