The concept of effective density and water content were introduced to describe the physical state of the claymatrix filling between sand particles.
引入有效粘土密度和有效含水率的概念，描述石英砂颗粒之间的粘土基质的物理状态。
2
Adding 7% cordierite, 7% flint clay and 2% quartz sand in matrix enabled the castable to have highest thermal shock resistance.
基质中同时引入7%的堇青石、7%的焦宝石和2%的石英砂时，浇注料的抗热震性最好。
3
The characteristics of elements and clay minerals of argillans in yellow brown soils and yellow cinnamon soils in the central China were analyzed and compared with their matrix soils.