Reinforcement rod surveys – 4emme

Tests and surveys

Reinforcement rod surveys

Pacometer surveys

The purpose of the test is to determine the position of the reinforcement, the thickness of the rod cover and provide an accurate approximation of the diameter of the rods by sliding a magnetic field emitting probe connected to a digital and acoustic processing unit along the surface. This type of detection is particularly useful for the execution of other tests such as core drilling and pull-out, which need to avoid the reinforcement.

Reinforcement sampling

The purpose of the test is to draw samples from reinforcing rods on which chemical, physical or mechanical tests are to be carried out in a material testing laboratory. This method involves the use of a chisel to remove the iron cover and a shear to cut the iron. It must be carried out in areas of low stress indicated by the Customer and must be conducted in such a way as to create as little disturbance as possible to the structure and its constituent elements.

Measurement of corrosion potential

Potential mapping is an electrochemical method used to assess the corrosion status of the reinforcement. The technique involves measuring the potential of the reinforcement by means of a reference electrode (Cu/CuSO4) resting on the surface of the concrete with a damp sponge to ensure electrolytic contact. This characteristic allows the extent and intensity of the corrosive phenomenon on the reinforcing bars caused by the decrease of the alkalinity of the concrete due to carbonation phenomena or attacks by aggressive substances to be defined.

Measurement of the tensional state using Strain-Gauges (strain gages)

The purpose of the test is to measure the tensional state of the metal structural elements by mounting a pair of diametrically opposed sensors in such a way as to be able to detect the combined tensional state of axial stress and bending moment.

Bologna

Strain gage surveys aimed at measuring the deformation state during the passage of trains on the Bologna-Padua line.

Treviso

Strain gauge surveys aimed at measuring the deformation state during the load phases of a sample of mega column of the ISP Towers.

Bolzano

Strain gage surveys aimed at measuring the tensional state on the reinforcement of the lower slab of a box girder bridge.

Turin

Strain gage surveys aimed at measuring the tensional state during the commissioning of a turbine of the electrical power plant.