Application of nondestructive testing technology in building quality inspection
In the inspection building quality,conventional sampling detects structural strength,cracks,defects and reinforcement,and it causes local damages to the concrete structure.In a park project in Shijiazhuang,the 3D scanning reverse modeling is used to reproduce the structure surface of the build-ing,and millimeter-scale precision measurement appearance is realized.And based on the electromagnetic induction,visual dialysis of steel bars in the building is carried out,with diameter,spacing and protective layer thickness of steel bars being judged.Concrete strength grade is tested by ultrasonic rebound,and by launching the shock wave into the building and collecting the wave forms,we judge whether there are de-fects and depth of any cracks on the building surface.
万方数据
维普
