Just about all concrete structures will contain rebar for reinforcement, concealed electrical conduits, drains and pipes and many other services that are required in buildings.
Concrete is completely opaque and therefore, there is no way for us to know where these things are located.
It is often necessary to cut into concrete to provide more utilities or services.
This is when you need to know the location of these things so that you can avoid them during any cutting or demolition exercise.
This means that you need to know the exact position of these items from old drawings, which may or may not be accurate.
The safer procedure, before you start any demolishing is to have the concrete structure scanned using suitable methods for doing so.
The techniques that are the most popular is concrete scanning which is done by using X-rays or ground penetrating radar.
The use of X rays can make for a health hazard for people in the area, and will require the building being scanned to be completely evacuated.
The operators themselves also need to wear proper protective gear and take the required safety precautions while doing the X-ray.
Ground penetrating radar or GPR technology is much simpler and safer.
It uses high-frequency pulses of electromagnetic energy that can easily penetrate concrete. This can be used for concrete that is as much as 300mm thick.
These pulses are run systematically over the entire surface of the concrete being scanned and get reflected from the objects that are embedded in the concrete.
GPR technology is non-invasive and enables detection of rebar, post tension cables in prestressed concrete, conduits, water lines or any other obstructions.
This technology also helps to detect the presence of gaps in concrete, or honeycombs that can greatly reduce the structural strength of the concrete members.
These gaps can then be filled and the concrete restored back to its original condition and strength.
This alone can help with the prevention of accidents and collapsing of structures.
It is important to carry out such concrete scanning when you need to cut, drill or core deeply into concrete structures.
A proper investigation is carried out by mapping the concrete area in grids, and the location and depth of any obstructions noted carefully in each of these grids.
The customer can then make an informed decision on how the information can be used to carry out any further work for cutting of the concrete, or strengthening it if the structure is considered weak.
GPR technology can also be used for preparing records of structures as they are actually constructed, and to list the differences from design drawings.
They can give actual sizes of structural members, thicknesses of slabs, the condition of the density of the concrete and other information that can help in assessing the stability of the structure.
It can help to detect hidden electrical cables that if punctured during any drilling or coring operations could turn out to become accident risks.
If you have any construction or excavation projects on the go, it is vitally important to hire a concrete scanning company to scan the location first.
High Resolution Concrete Scanning is a company you can trust to provide you with the most accurate and detailed information when it comes to scanning your concrete structures.
They have years of experience and use the most advanced tools and equipment in the business.
At High Resolution Concrete Scanning, our specialisation in concrete scanning services has made us industry leaders.
If you need to perform any type of concrete scanning, then look no further than us at High Resolution Concrete Scanning.
Please call us today on 0437 365 830 or contact us through our website https://www.high-res.com.au/contact-us/