Rebar detector test , Ce550 , Gaziantep university

1. UNIVERSITY OF GAZIANTEP
GRADUATED SCHOOL OF NATURAL AND APPLIED SCIENCE
FACULTY OF ENGINEERING
DEPARTMENT OF CIVIL ENGINEERING
NON DESTRUCTIVE TEST CE 550
Asso. Proff. Dr. Esra . M. Guneyisi
REPORT ON
REBAR DETECTOR TEST
Submitted by
Master’s Student
AHMED ASSIM ABDULLAH
Construction branch

2. OUTLINE
 HISTORICAL
 INTRODUCTION
• Non Destructive Test
• Rebar Detector
 MORE INFORMATION
 SIGNIFICANCE
 MECHANISM
 APPARATUS
 PROCEDURE

3. HISTORICAL
• These advanced inspection techniques can be expensive
due to the need of having professionally trained
technicians to perform the testing and to acquire and
analyze the inspection results. Examples of NDT techniques
that can be used for rebar location are ground-penetrating
radar (GPR) and magnetic devices such as cover meters
• The researchers performed a literature review of the
primary techniques for use to detect steel rebar embedded
in concrete structures. Three methods were identified:
nuclear, magnetic and ground penetrating radar method.
For each method, principles and advantages and
disadvantages were is cussed.
• After performing a detailed literature review and
understanding both advantages and limitations of each
rebar locator method, the researchers decided to focus on
detecting cover meters devices available on the market.

4. Non Destructive Test
• Non Destructive Testing (NDT) methods are popular for
routine inspection of bridge members. With the ability of
new highly technical systems, some of these NDT
techniques can be used for reinforcing steel rebar location
in concrete bridge decks without destruction of the
members being tested. Use of these techniques has the
ability to minimize traffic restrictions related to field data
collection and to improve design and asset management..
Rebar Detector
• Rebar detector is one of the NDT, which are used to locate
the steel bar embedded in concrete before drilling and
before taking core test.
• It is the easiest and fastest ways for detecting reinforcing
bar in concrete. It is widely used before coring or drilling
holes to find “safe spots” .
• It will indicate rebar location, direction and also will give
an indication of the depth of concrete cover.

5. More information
• The rebar detection instrument (Profoscope) has a unique
real-time visualization mechanism, allowing the contractor
to actually see the location of rebar's beneath the concrete
surface. The (Profoscope+
) features data storage for
automatic collection of data to make rebar detection more
efficient. The (Profometer 5+
) combines rebar detection
and measurement of concrete cover and bar diameters in
one instrument.
Profoscope
The fully integrated Phonoscope for quick and easy rebar detection.

6. Profoscope +
The Profoscope+
has the same features as the Profoscope, but
additionally offers the innovative memory function for data
acquisition.
has the same features as the Profoscope, but
additionally offers the innovative memory function for data
has the same features as the Profoscope, but
additionally offers the innovative memory function for data

7. Profometer 5+
The Profometer 5+
is an advanced device for the non destructive
detection of rebars and for the measurement of concrete cover
and bar diameters.
Profometer PM-600 / 630
The Profometer PM-600 / 630 are advanced cover meters which
come with the new generation Profometer Touch screen unit.

8. SIGNIFICANCE
• Hitting a rebar however boring into the reinforced concrete
moreover taking core may be destroy the drilling
instrument and can severely weaken the concrete
structure.
• An instrument for rebar detection that quickly and
accurately determines the location of the reinforcing bars
in the concrete.
MECHANISM
• A rebar detector works on the principle that the steel
within the concrete will be affected by a magnetic field
that is applied by the detector.
• By assuming a set magnetic property for all steel
reinforcing bars and using a given bar size, the detector
can predict the depth and location of the reinforcing bars.
• The signal received will increase with increasing bar size
and decrease with increasing cover.
• To locate the bar position, the distance to the bar is
minimized, indicating that the rebar detector is directly
over a piece of the reinforcing steel.

9. PROCEDURE
• The instrument is laid at the surface of the column or slab.
• An Instrument is moving from the left to right and then
from the bottom to up to get the position of the
reinforcement.
• Once the location of rebar are found, a masonry drill is
used to locate the total cover to the rebar.