Abstract

Keywords: Reactive powder concrete; Full process test of axis tension; Stress-strain curve; Abstract. The full process axial tension test is conducted for reactive powder concrete (RPC) with three kinds of steel fiber volume ratios. The dumbbell test piece with varying section of arc transition is adopted in the test with copper washer of varying thickness to address the problem that it is easy for outer clamp test piece to have stress concentration at the end. As suggested by the test results, the axial tension stress-strain curve can be measured on the normal universal tester for RPC axial tension test piece of Vf=1%and 2% without adding any rigid auxiliary facility. The damage type of RPC axial tension changes from brittle fracture to ductile damage when there is no fiber.

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