The results show that: the alter of volumetricshrinkage decreases with the increase of fiber content added in cement, the maximum relative volumetricshrinkage decreases by 38.3%.
研究结果表明，随着纤维产量的增加，水泥石的体积收缩率减少，最大相对体积收缩率下降了38.3% ；
2
The result indicated that the residual stress in the product produced by optimized project was decreased obviously, the volumetricshrinkage was homogeneous and the defect became slight.
结果表明，优化工艺后成型的复杂壳体制件的残余应力明显减小，体积收缩也比较均匀，缺陷明显减轻。
3
The result shows that high content fly ash active powder concrete has small volumetricshrinkage and excellent anti-carbonization resistance to penetration of chlorine ion and to sulfate corrosion.