The system can test active clay content and moisture of green sand fast and control its composition directly.
该系统能快速测定型砂的有效粘土含量和含水量，实现型砂质量的直接控制。
2
If the moisturecontent of molding sand with low sand, more very dry bulk and hard brittle.
混砂时如果型砂的含水量较低，更回显得相当干散和硬脆。
3
This paper has arrived at the compressive strength, shear strength, modulus of elasticity, poisson's ratio, moisturecontent, water absorption and softening factor of lime-sand brick masonry.