000			a
999			_c19605 _d19605
003			OSt
005			20230707101455.0
008			230707b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_921327 _aNajas, M. S. M.
245			_aHigh-temperature curing application for concrete comprising fly ash and GGBS
250			_aVol.97(3), Mar
260			_aMumbai _bACC LTD _c2023
300			_a16-25p.
520			_aFly ash (FA) and ground granulated blast-furnace slag (GGBS) are two promising supplementary cementitious materials (SCMs) that can be used in concrete applications. The early age strength development of such concrete is generally slow; however, the strength reduction can fairly be recovered with high-temperature curing implementation. In this study, the compressive strength behavior of binary and ternary concrete mixes those were subjected to 24 hours 50°C and 70°C curing conditions was explored. Two target compressive strengths levels of 30 MPa and 50 MPa were considered and the SCM blend level was 25 %. The results highlighted that, in terms of early strength achievement, the 50°C curing was favourable for the ordinary Portland cement (OPC) and OPC/GGBS mixes whereas the 70°C curing was attractive in the OPC/FA and in the ternary mixes. For the latter age strength, the high temperature curing detrimentally affected for the OPC and OPC/FA mixes whereas a considerable enhancement was noted for the GGBS blended mixes. The overall effectiveness of the high-temperature curing process was higher in the 30 MPa mixes than in the 50 MPa mixes. Meanwhile, the Arrhenious maturity function based strength predictions were identified to be more accurate than its prediction potential reported for past iso-thermal hightemperature curing applications.
650		0	_94621 _aCivil Engineering
700			_921328 _aVaseekaran, T.
773	0		_x0019-4565 _dThane ACC Limited _tIndian Concrete Journal - ICJ
856			_uhttps://www.icjonline.com/editionabstract_detail/032023 _yClick here
942			_2ddc _cAR