000			a
999			_c19829 _d19829
003			OSt
005			20230830095425.0
008			230830b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_99756 _aSingh, Brijesh
245			_aPerformance of concrete made using sintered flyash lightweight aggregate-a review
250			_aVol.97(7), Jul
260			_aMumbai _bACC LTD _c2023
300			_a41-59p.
520			_aCurrent work summarizes research done on potential of sintered fly ash lightweight aggregate based concrete and its suitability as an aggregate. The manuscript presents physical and chemical parameters of ingredients such as fly ash as well as binders adopted in manufacturing process covering effect of these materials on parameters related to pelletization like duration, angle of inclination and rotation speed and its subsequent effect of aggregate characteristics. The impact of sintering temperature and its duration on aggregate characteristics is also discussed. The physio-chemical and mechanical characteristics of sintered fly ash aggregate is briefly presented. The review of literature suggests that specific gravity and water absorption of sintered fly ash lightweight aggregate is low and high respectively as compared to conventional aggregate. The use of additives such as alkaline activators, styrene-butadiene rubber, quick lime etc. and additional treatments such as coating or vacuum impregnation has shown potential for reducing water absorption. The mechanical performance of sintered fly ash lightweight aggregate in concrete is different from normal concrete. Factors affecting compressive strength, flexural strength and modulus of elasticity apart from the characteristics of manufactured sintered fly ash lightweight aggregate are cement content, supplementary cementitious materials, additives used, treatment done to aggregate, aggregate content, shape index of aggregate etc. Studies have indicated no direct relationship between factors affecting concrete durability such as water absorption, mechanical perfromance, cement content, water penetrability and freeze-thaw resistance of sintered fly ash lightweight concrete. The sintering temperature, selection of binder, additives and internal curing plays vital role in quality of interfacial transition zone. Further research is needed to explain bonding mechanism between aggregate and matrix, shrinkage performance with increase in heating rate, relationship between factors affecting concrete durability such as water absorption, mechanical perfromance, cement content, water penetrability and freeze-thaw resistance of sintered fly ash lightweight concrete. The review suggests that sintered fly ash lightweight aggregate based concrete has great potential for its application in construction to obtain benefits such as reduction in dead load, improved thermal comfort and reduction in carbon footprint.
650		0	_94621 _aCivil Engineering
700			_912558 _aSingh, Shamsher Bahadur
773	0		_x0019-4565 _tIndian Concrete Journal - ICJ _dThane ACC Limited
856			_uhttps://www.icjonline.com/editionabstract_detail/072023 _yClick here
942			_2ddc _cAR