sand strength

The relationships between concrete cube compressive strength and the axial compressive strength, splitting tensile strength, modulus of elasticity were established, which provides a reference for the application of manufactured sand concrete in pre-stressed concrete bridge engineering. 3.

建立了机制砂混凝土的立方体抗压强度与轴心抗压强度、劈裂抗拉强度、弹性模量的换算关系式，为机制砂混凝土在预应力混凝土桥梁工程中的应用提供了参考依据。

Characteristics of hydration and hardening process and strength properties of class G oilwell cement pastes with and without sand were studied under different temperatures by XRD, SEM, static gel Strength analysis and penetrability test.

研究了G级油井水泥在不同温度条件下的水化硬化特点及强度性能.使用静态浸泡的实验方法，考察了薄膜对合金耐蚀性的影响。

The Cyclic Strength Test Research on Calcareous Sand

钙质砂动强度试验研究

Effects of the Sand Temperature and Air Humidity on the Strength of Cold-box Sand Cores

原砂温度及空气湿度对冷芯盒法砂芯强度的影响

Theoretical Calculation on Adhesion Strength of Non occupying Coating to Sand Core

非占位涂料与砂芯附着强度的理论计算

FDE-1 Intelligent Instrument of Measuring Coating Strength of Casting Sand Mold

FDE－1型铸型涂料层强度智能测试仪

Effects of Sand Percentage and Proportion of Crushed Rock Fine to Sand on Properties of High Strength Pump Concrete

砂率及特细砂与鱼米石比例对高强泵送混凝土性能的影响

Introductory research of superfine sand high strength concrete/ Jiujiang college of civil engineering and urban construction

特细砂高强混凝土的初步探索

Compared with cement sand, alkali-activated cementing materials and alkali-activated fly ash cementing materials the rapid development of the hydration reaction in the test block in forming 7d strength development has been basically completed.

与水泥胶砂相比，碱激发偏高岭土和碱激发粉煤灰胶砂的水化反应发展迅速，在试块成型7d内强度发展已基本完成。

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。