The result shows that the apparent porosity exerts greater influence on the intensity of cement paste. To add air-detraining admixture and water reducer in the cement paste can obviously reduce the porosity and increase the intensity. 结果表明,表观孔隙率对水泥石的强度影响较大,在水泥浆体里加入消泡剂、减水剂可以显著降低水泥石的孔隙率并使强度有所提高。
Contact Intensity Analysis and Calculation of External Wave Sliding-Tooth Reducer 外波式活齿减速器接触强度的分析与计算