sounding technique
Yes and many so ask the supplier of your concrete.
earth method
To raise concrete using the method of slabjacking, holes are drilled into the concrete slab and a mixture of grout is pumped underneath. The grout fills any voids and lifts the slab back to its original position. This method is commonly used to repair sunken or uneven concrete surfaces.
Patios are usually visible on stamped concrete. Also the method of deck time lapse is commonly used on stamped concrete to avoid visible patterns on concrete.
i is your birthday
Parallax is a method used to find the distances of stars.
PCR technology can be used to this field.
they put it in water???
Density
carbon dating
The Bradford method involves a chemical test. It is used by scientists to determine the concentration of proteins in a solution.
for concrete a F.O.S. upto 3 is used . and for steel 1.75 to 1.85 .. is used.