Influence of Particle Morphology of Ground Fly Ash on the Fluidity and Strength of Cement Paste

The grinding process has become widely used to improve the fineness and performance of fly ash. However, most studies focus on particle size distribution ground ash, while morphology is also an important factor affect cement paste. This article aims at three different kinds ash from ball mill vertical mill, observed by scanning electron microscopy (SEM) calculate spherical destruction (the ratio particles broken into irregular in ash), which provides a quantification change process. fluidity paste strength mortar are tested study relation strength. results show that more than 80% with separation system only 11.9%. Spherical shows significant fluidity. To addition decreases increase destruction. paste, both key factors. Therefore, measurement index evaluate effect mill.