batch of concrete

The static and fatigue flexural tests were carried on a batch of partial prestressed concrete beams to study the effects of strand corrosion on the mechanical performance of specimen beams.

通过对同批钢绞线腐蚀后的部分预应力混凝土梁进行四点弯曲的静载和疲劳试验，研究了腐蚀对试验梁静力和疲劳性能的影响。

This test method is sufficiently accurate for usual purposes, such as adjusting batch quantities of ingredients for concrete.

对于常见目的（比如调整批量混凝土的成分），本试验方法可提供充分的精确度。

Meanwhile a batch of new-style concrete a way is able to approve project approving construction.

与此同时,一批新型干法水泥线得以批准立项建设.

Batch Prestress Loss of Concrete Pipe Pile by Post-Tensioning Method

后张预应力混凝土管桩分批张拉预应力损失