standard sand meaning in English
标准砂
Examples
- Standard sand for checking foundry binder
检定铸造粘结剂用标准砂 - Methods of testing cement - standard sand for mortar cubes
水泥试验方法.第6部分:灰浆正方块体标准砂 - Standard sand for cement strength test
水泥强度试验用标准砂 - Based on the calculation methods of nominal water - cement ratio of mortar and average paste thickness of standard sand provided by authors , the nonlinear relation between fluidity of mortar and nominal water - cement ratio of mortar , average paste thickness of standard sand , fly ash - binder ratio was established by using artificial neural network ( ann )
摘要在给出水泥胶砂名义水灰比和标准砂平均浆体厚度计算方法的基础上，采用人工神经网络方法，建立了水泥胶砂流动度与水泥胶砂名义水灰比、标准砂平均浆体厚度、粉煤灰与胶凝材料用量比之间的非线性映射关系。 - This dissertation presents a hypoelastic constitutive model with four material constants in describing the mechanical behavior of granular materials under loading . analysis results of the model have good coincidence with those of triaxial experiment of the standard sand under different relative density . the model can describe the contractant and dilatant phenomena of granular materials
提出了一种含4个材料常数的亚弹性本构模型，来描述散粒体在加载时的力学行为，本模型的分析结果与不同相对密度下标准砂的三轴实验可较好地吻合，能反映散粒体的剪缩、剪胀现象，还对如何用三轴实验数据来确定这4个材料常数，给出了适宜的计算方法。