This paper introduced the characteristics of high dense fluid concrete, design of batching ratio, the experiment and test of bent concrete component in medium hardness prestress.
介绍了高流态自密实砼的性能、配合比设计方法及其在中等强度等级预应力受弯拉砼构件中的应用试验及测试情况。
The upward force that a fluid exerts on an object less dense than itself.
施加给比自己密度小的物体的向上作用的力。
The flow pattern of ideal fluid, dense floating fluid and wet concrete in conveying tube are briefly analyzed in this paper. The calculation of pumping resistance is also introduced.
本文对理想流体、浓浮流体和混凝土在输送管道中的流动形态，进行了扼要分析，并对泵送阻力运算作了概述。
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