朝阳某砂岩质煤矸石陶粒的增塑试验

以辽宁朝阳地区的砂岩质煤矸石为制作陶粒的主要原料，以该地区易得的油母页岩和页岩为主要掺加料，进行了陶粒增塑性能研究。结果表明：提高砂岩质煤矸石的细度可以提高生球的塑性指数、耐跌落次数，以及陶粒的筒压强度；油母页岩的掺入能小幅度提高生球的塑性指数和陶粒的筒压强度，对耐跌落次数影响不明显；页岩的掺入能明显提高生球的塑性指数、耐跌落次数和陶粒的筒压强度。当砂岩质煤矸石与页岩质量比为6∶4时，陶粒的筒压强度可达8.4 MPa。

Experiments on Ceramsite's Plasticization with Sandstone Coal Gangue in Chaoyang

Using the sandstone coal gangue from Chaoyang area of Liaoning province as main raw material to prepare ceramsite，together with oil shale and shale which is easy to get in this district as main mixing material，the Ceramsite's plasticization is studied. The result showed that the plasticity index，the granulation rate of the unbaked ceramsite increase with improving the fineness of the sandstone coal gangue，furthermore the cylindrical compress strength of the baked ceramsite correspondingly increased; The plasticity index of the unbaked ceramsite and the cylindrical compress strength of the baked ceramsite have small extent of improvement by mixing with oil shale，but there was no significant effect on the granulation rate of the unbaked ceramsite. Mixing with shale could obviously improve the plasticity index and the granulation rate of the unbaked ceramsite and the cylindrical compress strength of the baked ceramsite. When the mass ratio of the sandstone coal gangue and shale is 6∶4，the cylindrical compress strength of the baked ceramsite could be up to 8.4 MPa.