The Schmidt hammer is not a hammer as we normally think of it as normally a hammer is a wooden handle with a metal bar at the top used just to hit things very hard.
There is no skill required and in the wrong hands, they can be dangerous.
Ernest Schmidt invented this hammer in 1948.
Ernest was a Swiss engineer.
The role of that appliance was to carry out tests on rock and concrete.
The tests carried out will let the user know the surface hardness and penetration resistance.
The Silver Schmidt tool is a new and improved product, and has many benefits missing from other hammers.
Problems had been identified with existing hammers and these included the fact that impact direction had a direct effect on the rebound value, and a less than perfect reading is given.
Friction within the wall can also play a part in affecting the reading.
The final problem that could cause lack of accuracy is how well the tool is sealed.
Silverschmidts new design sorts out these issues, and as a result, tests are now quicker and even more accurate.
This is a good quality hammer, and is easy to use.
It is designed to make it easy to hold, and it has a very clear display.
Making it two layers has cured the sealing problem and this stops dust from getting inside.
The reading is taken from the point of contact; no calculation is needed to make correction for the angle.
More than one point can be read and automatically evaluated to a high degree of accuracy, and following the statistical needs.
All that is needed to upload the data is the ability to use USB.
This is done through Hammerlink.
The Schmidt hammer is a small and relatively cheap tool that can also be used to estimate rock strength.
Up until now, these tests had to be carried out in laboratories and this had many draw backs.
To test in a laboratory was expensive and took up a lot of time that could be spent elsewhere.
If these were the only problems, they could be dealt with, but the loss off accuracy was a bigger issue.
As the piece of rock was removed from the main body, it was immediately changed.
It lost integrity right away, and further changes would happen as the sample was prepared for testing.
Add to this the fact that the test was being carried out in a completely alien environment and the loss of accuracy had been unavoidable.
As the schmidt hammer is being used to look for signs of aging, it is important that results are as accurate as possible or there could be a serious accident.
Once the laboratory test has shown that there might be structural laws, it is best to carry out tests on sight and ascertain if there is in fact a major problem, and if there is, just how bad it is.
It is not intended to be a substitute for control testing but to be used to back that up.