rebound test of concrete

例句：

1. 1. The engineer conducteda rebound test on the newly poured concrete to ensure its strength.
   工程师对新浇筑的混凝土进行了回弹试验，以确保其强度。
2. 2. The construction company used this test to evaluate the durability of the concrete structure.
   建筑公司利用这项试验评估混凝土结构的使用寿命。
3. 3.The researcher found that the rebound test could provide valuable insights into the behavior of concrete under load.
   研究者发现，回弹试验能够为理解混凝土在受力下的行为提供宝贵见解。