The Experimental Study on the Coefficient of Friction Change Tendency which It Follows in Kinds of Concrete Strength and Pumping Pressure Grade

콘크리트 규격 및 압송압에 따른 마찰계수 변화경향에 대한 실험적 연구

Plan of concrete pumpability test or the theoretical character knowledge in the mechanic is become accomplished with character. But the character knowledge of the concrete is not considered appropriately, The theoretical background and assumed fact is a little different representative characteristic of the concrete. Concrete pumping experiment result it leads consequently and is produced the coefficient of friction which in concrete type and sending in more pressure it follows changes must grasp the tendency which. But until currently the majority experiment and research did not pass by this process. Grasps the coefficient of friction change tendency which it follows in concrete type and when pumping concrete more pressure data fundamentally from the experimental research which it sees consequently under providing the man with underdeveloped genital organ.