Testing the strength of a concrete slab becomes imperative
sometimes. To determine the vigor of the toughened slab, the slab is
drilled, and then, core testing is performed. In the concrete core testing procedure, the core of the concrete lab is tested out.
If it becomes unfeasible for the testers to determine the
condition of the slab via comprehensive strength tests, core testing
remains the best possible resolution for them. The comprehensive and core
testing are two far different testing procedures that determine different
purposes. While the cylinder strength test ascertains the
quality of the concrete, the core testing determines the quality of the in-situ
concrete. Since drilling is a prime stunt, the strength of the stone also gets
revealed with core testing measures.
There are several factors that influence the results of
core testing –
The Diameter of concrete core – To attain the best
results, the diameter of the sample slab should be at least 3.70 inches (for
comprehensive strength load bearing), and 1.5 inches (for concrete with nominal
maximum size).
The length of the sample slab – The length of the
specimen concrete slab should be between 1.9 and 2.1 inches.
The evaporation of moisture – After drilling
the slab, it is important to clean and wipe off the surface with water. And it
is even more important to allow the water to evaporate
completely, before taking the sample. Ideally, it takes about 1 hour to the
water to evaporate entirely. You can place the samples in your envelopes after
that duration has passed.
No comments:
Post a Comment