000			a
999			_c15850 _d15850
003			OSt
005			20211230145213.0
008			211230b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_915259 _aStephen, Stefie J.
245			_aDetermination of the complete stress-strain response of concrete under uniaxial compression
250			_aVol.95(9), September
260			_aThane _bACC LTD _c2021
300			_a41-53p.
520			_aThe characterization of the complete uniaxial compressive stress-strain curve of concrete is crucial for a more rational and reliable design of concrete structures. However, without intrinsic knowledge of the influence of different experimental control variables and the failure mechanisms of concrete, it is impossible to obtain a stable softening response in a test. This paper discusses the various aspects to be considered while performing the characterization, provides a comprehensive description of the different steps involved in the post-processing of the obtained experimental data. The influence of different test variables such as the type of contact, specimen size, rate of loading, the grade of concrete and fibre dosage on the compressive response is also elucidated. The complete stressstrain curves for different concretes have been obtained using the proposed procedure, which can serve as guidelines for such characterization. The brittleness of higher strength concrete is clearly manifested by a stress-strain curve that descends more sharply than those of conventional concretes. Further, it is seen that the incorporation of steel fibres mitigates the brittleness by improving the compressive toughness through bridging of the cracks and internal confinement.
650		0	_94621 _aCivil Engineering
700			_915260 _a Júnior, Ernesto Zangelmi
773	0		_dThane ACC Limited _tIndian Concrete Journal - ICJ
856			_uhttps://www.icjonline.com/editionabstract_detail/092021 _yClick here
942			_2ddc _cAR