aggregate cement ratio

The orthogonal test was designed considering four parameters including water to cement ratio, cement content, grain series of recycled aggregate and aggregate to cement ratio, each parameter was set at three levels.

正交试验考虑了水灰比、水泥用量、再生骨料颗粒级配、集灰比四个因素，每个因素设三个水平。

The conclusion is as follows: 1. Aggregate grading and sand cement ratio have obviously influence on the strength. And the consideration should involve strength, construction operation and economy.

集料级配和砂胶比对强度存在显著的影响，应综合考虑强度、施工操作性和经济性加以选择。

The effect of some factors on the sound absorbing property, such as type of aggregate, water to cement ratio and size of aggregate particles, was investigated experimentally.

试验分析不同骨料、水灰比、骨料颗粒粒径对吸声性能的影响。结果表明，这些因素对其吸声性能影响明显。

Study on effect of compressive strength of recycled aggregate concrete with water cement ratio

水灰比对再生混凝土强度影响的试验研究