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1·Compatibility of cement and pfa with plasticizer was studied through the slump test of concrete from the aspects of cement, pfa and plasticizer.

通过混凝土坍落度试验，从水泥、粉煤灰及塑化剂三方面研究了水泥及粉煤灰与塑化剂的适应性问题。

2·The equivalent discrete element model of the conditioned sands is provided, on the basis of which the DEM numerical model of the slump test and the shear test of the conditioned sands are established.

提出了改性砂土的等效离散元模型，在此基础上建立改性砂土坍落度实验和直剪实验的离散元数值实验模型。

3·Aminobenzenesulfonic acid super-plasticizer is selected though cement paste test, which be provided with high water-reducing property, low slump loss and good compatibility with cement.

通过水泥净浆试验比较选择了减水率高、坍落度损失小、与水泥适应性好的氨基苯磺酸盐高效减水剂；

4·Laboratory test showed that: In consideration of slump, the optimization content of the fly ash was around 30% or more than 30%.

试验结果显示：从坍落度方面考虑，粉煤灰的掺量应该在30%左右或大于30%为最佳。

5·The mixture ratio of C40 Marine high performance concrete is optimized through test of the hydration heat of binding material, slump, chloride ion diffusion coefficient, anti-crack rand of concrete.

通过测试胶凝材料水化热、混凝土的坍落度和氯离子扩散系数、抗裂等级等性能，对C40海工混凝土的配合比进行了优化设计。