In order to prevent such shrinkage, a delayed-expansioncement was studied and produced.
为了防止这种收缩，研制了延迟性膨胀水泥。
2
The expansion mechanism of hardened cement paste with double expansion sources of entringite and brucite was studied by using theory of fractal geometry and viscoelasticity.
应用分形学与粘弹性力学对含钙矾石和水镁石膨胀源的水泥硬化浆体的膨胀机理进行了研究与分析。
3
Addition of silica fume into the mix will result in increasing the workability and strength of cement mortar and decreasing the expansion.