000			a
999			_c14559 _d14559
003			OSt
005			20210303121251.0
008			210303b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_913558 _aA, Masood
245			_aEffect of Elevated Temperature on the Residual Properties of Quartzite, Granite and Basalt Aggregate Concrete
250			_aVol,99 (3), September
260			_aKolkata _bSpringer _c2018
300			_a485-494p.
520			_apresent study, experimental investigations have been carried out to determine the effect of elevated temperature on the residual properties of quartzite, granite and basalt aggregate concrete mixes. Ultrasonic pulse velocity and unstressed residual compressive strength tests on cube specimens have been conducted at ambient and after single heating–cooling cycle of elevated temperature ranging from 200 to 600 °C. The relationship between ultrasonic pulse velocity and residual compressive strength of all concrete mixes have been developed. Scanning electron microscopy was also carried out to study micro structure of quartzite, granite and basalt aggregate concrete subjected to single heating–cooling cycle of elevated temperature. The results show that the residual compressive strength of quartzite aggregate concrete has been found higher than granite and basalt aggregate concrete at ambient and at all temperatures. It has also been found that the loss of strength in concrete is due to the development of micro-cracks result in failure of cement matrix and coarse aggregate bond. Further, the basalt aggregate concrete has been observed lower strength due to low affinity with Portland cements ascribed to its ferro-magnesium rich mineral composition.
650		0	_94621 _aCivil Engineering
700			_913560 _aM, Shariq
773	0		_x 2250-2149 _tJournal of the institution of engineers (India): Series A _dSwitzerland Springer
856			_uhttps://link.springer.com/article/10.1007/s40030-018-0307-6 _yClick Here
942			_2ddc _cAR