Modifications clinker phase and mechanical strength in relation to type of quenching
The effect of quenching in the stability of the phases of different commercial clinkers and so its flexotraction and compression strength at 7 and 28 days curing time have been studied. The clinkers were reheated at 1.576 ºC, for a period of thirty minutes, and were quenched in two different ways:-outside at air temperature and water submersion. The samples were studied by the techniques: XRD, optical microscopy and dispersive X-ray analysis. All the water quenched clinker had always a trigonal structured alite, which has Mg and Al is solid solution. The air quenched clinkers had a monoclinic alite. The flexotraction and compression strength at 7 and 28 days of the water quenched clinkers were always lower to those of the air quenched ones. This is due to that the trigonal structured alita hydrates with much more difficulty than the monoclinic alite.
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