What are non-destructive concrete tests?

By combining the above methods (non-destructive methods), it becomes possible to collect valuable information about the hardened concrete material, such as compressive strength, homogeneity of mechanical characteristics, the presence of gaps, looseness, poor workmanship – construction defects, physicochemical damage, carbonation – calcification, fire damage, acidic environment, biological factors, etc.

Classical concrete quality control methods (destructive)

From the early years when concrete began to penetrate dynamically into the field of construction projects, and especially in the last fifty years when housing needs in large urban centers (cities) led to the construction of multi-story buildings (apartment buildings, shopping centers, factories, hospitals, etc.), the burning problem of systematically controlling the quality of homogeneity, compressive strength and ductility of concrete arose.

After systematic research by experienced civil engineers who dedicated a large part of their lives to laboratory research on concrete, the scientific and technical community arrived at three basic rules for controlling the quality of fresh concrete:

Systematic taking of essays in six-semester periods

With the injection of concrete, a group of six cast iron molds measuring 15 x 15 x 15 cm are planned to be sampled on site, which constitute the cores of laboratory testing.

Systematic control of the quality of aggregates

Taking samples from the quarry where the ready-mix concrete producer purchased the aggregates. In any case, these should be free of lumps above the permissible limit.

Sufficient vibration

The project’s supervising engineer ensures the required concreting conditions so that the finally laid concrete exhibits homogeneity and consistency, using vibrators throughout the entire mass where the paving is taking place.