000			a
999			_c17992 _d17992
003			OSt
005			20221102095344.0
008			221102b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_910612 _aKulkarni, S. B.
245			_aFly ash concrete-a step forward in sustainable construction of nuclear power plant
250			_aVol.96(5), May
260			_aThane _bACC LTD _c2022
300			_a6-16p.
520			_aThe recent growth in the construction industry puts India at risk of increasing carbon emission and depletion of natural resources. Additional industrial by-products such as fly ash which is generated in thermal power plants increasing the greenhouse gas (GHG). The utilisation of such industrial byproducts supports the sustainable development of the construction industry and fly ash found to be the best partial replacement for ordinary portland cement (OPC). This paper presents a case study on the development and use of fly ash concrete at Kakrapar Atomic Power Plant-Unit 3 and 4 (KAPP 3 and 4). This manuscript enumerates the various aspects of testing and use of fly ash to produce fly ash concrete, which includes characterisation, source qualification, material testing methods, proportioning of concrete mix, direct blending and determination of hardened concrete properties at 40 and 50 % of cement replacement level. Benefits of fly ash concrete were experienced in both fresh and hardened states of concrete during the construction process, which include reduction in water requirement and fine aggregate content, improved workability, cohesiveness, pumping over long distance/heights, and concrete-ability at congested rebars and embedded parts. Though the rate of strength gain is low at early ages, there is considerable increase in strength at 56 days. The split tensile strength and modulus of elasticity follows the same trend as that of the compressive strength. Also, the rapid chlorideion penetration test (RCPT) values indicate the reduction in permeability of concrete leading to enhanced durability of fly ash concrete.
650		0	_94621 _aCivil Engineering
700			_918758 _aBhat, S. N.
773	0		_tIndian Concrete Journal - ICJ _x0019-4565 _dThane ACC Limited
856			_uhttps://icjonline.com/editionabstract_detail/052022 _yClick here
942			_2ddc _cAR