High Plastic Repeating Loading Testing

Loading procedure

Firstly, repeating 16 cycles with the loading between 50% compressive stress of nominal stress of specified rebar and 95% nominal stress of specified rebar (stress control). Secondary, repeating 8 cycles with the loading between 50% compressive stress of nominal stress of specified rebar and 5-times yielding strain of specified rebar (strain control). Thirdly, repeating 8 cycles with the loading between 50% compressive stress of nominal stress of specified rebar and 10-times strain of specified rebar (strain control). Finally, loading to breaking.