Determination of setting rate in gypsum casting by X-R diffractometry

X-diffractometry is applied to evaluate the setting time of gypsum pastes. A direct "observation" of the crystalization phenomena, in the moment in which occurs is possible using the proper radiation, in the measure of the dimension what is observed. The observation is developed with normal techniques and instrumentation, however, are proposed some modifications in diffractomete use. Is offered a new possibility in the application of difractometric techniques in investigation works.