Rebar detector test
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This document discusses rebar detection using non-destructive testing methods. It provides background on rebar detectors and their significance in locating reinforcing bars embedded in concrete. The document outlines different rebar detection instruments, including the Profoscope, Profoscope+, and Profometer 5+, describing their mechanisms and functions. It also describes the procedure for using a rebar detector to locate reinforcing bars before drilling or coring concrete structures.
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Rebar detector Test of Nondestructive Test
The document discusses rebar detectors, which are non-destructive testing devices that use magnetic fields to locate reinforcing steel bars embedded in concrete. It provides background on rebar detection techniques and focuses on commercially available cover meters. The document explains that rebar detectors work by sensing the magnetic response of steel to quickly and accurately determine bar locations before drilling or coring concrete structures.
rebar detector
This document discusses non-destructive testing methods for locating rebar in concrete structures. It introduces rebar detection devices that use magnetic fields to locate rebar based on the principle that steel is affected by magnetic fields. The document outlines different rebar detection instruments, including Profoscope and Profometer models, and describes their mechanisms, uses, and procedures for locating rebar positions without damaging the concrete.
Non-Destructive Testing (NDT)
Hello guys,
I am here to share my knowledge on Non-Destructive Testing (NDT). In this presentation, I tried to explain on the following topics:
1. why we use NDT (purpose)?
2. Condition Assessment of the Structures by Non-destructive Evaluation Techniques
3. Concrete Petrography Implications
4. Potential as a Diagnostic Technique
5. Common Applications of Microscopy in Concrete Science and Technology
6. Thermographic (Infrared Thermal Imaging)
With interesting pictures
and much more...
I put some effort to present in front of you. So, kindly if you find any mistakes feel free to text.
Non destructive test in CIVIL ENGINEERING Construction
NON DESTRUCTIVE TEST (NDT)
SAURABH GUPTA
BLOG - http://notescivil.blogspot.in/
After this seminar you will able to answer the following
Non- destructive testing
Rebound hammer testing
Ultrasonic pulse velocity test
Cover test
methods including principle, advantages and point of action
NDT
Technique to test new or old concrete structure with respect to its strength and durability ,without or partial damage to a small part of concrete.
It doesn’t estimate ultimate or yield strength of concrete.
It is easy mechanized method, and is very cost effective , many test can be performed at the same cost of single destructive test.
No sample is required to collect for the laboratory testing as compare to some methods destructive testing
TEST
Rebound Hammer Test
Windsore Probe Testing
Ultrasonic Pulse Velocity Test
Acoustic Emission Method
Pulse Echo Method
Initial Surface Absorption Test
Radar Technique
Infrared Thermography
Quantab Test
Carbonation test
Profometer / Rebar locator
REBOUND HAMMER TEST (IS 13311 II)
Determination of strength and hardness of concrete.
ULTRASONIC PULSE VELOCITY TEST (IS 13311 I)
To determine the homogeneity, compatibility and cracks or void if present .
PROFOMETER / REBAR LOCATOR
Location of bar and diameter of bar
CARBONATION TEST
To estimate the amount of carbon and corrosion estimation.
To assess the likely compressive strength of concrete with help of with suitable co-relations between rebound index and compressive strength.
To assess the uniformity of concrete.
To assess the quality of concrete in relation to standard requirements.
To assess the quality of one element of concrete in relation to another
This method can be used with greater confidence for differentiating between the questionable and acceptable part of a structure or for relative comparison between two different structure.
When the plunger of rebound hammer is pressed against the surface of concrete, the spring control mass rebounds and the extent of such rebound depend upon the surface hardness of concrete, the rebound is thus related with compressive strength of concrete and the graduated scale is designated as rebound number
It Consists of spring controlled mass that slides on a plunger within a tubular housing.
The impact energy required for rebound hammer for different application is different (shown in table in next slide)
Rebound hammer is used to check –
1 Compressive strength of concrete
2 Uniformity of concrete
3 Quality of element of concrete
Ultrasonic pulse velocity test
To assess the uniformity and homogeneity of concrete.
To assess the quality of concrete in relation of standard requirement.
Detection of presence of voids, cracks & imperfection of concrete.
Measurement of changes occurring with time in the properties of concrete.
To overcome all these problems, the methods have been developed for investigation and evaluation of concrete st
Non destructive testing of railway bridges
This document discusses non-destructive testing (NDT) techniques for assessing concrete structures. It describes several NDT methods for evaluating concrete strength, locating rebar, detecting cracks, and assessing corrosion. Methods for strength assessment include rebound hammers, windsor probes, ultrasonic tests, and permeability tests. Corrosion can be evaluated using corrosion analyzers and resistivity meters.Rebar location and details can be obtained using profometers. Cracks are detected using microscopes, eddy current meters, and infrared cameras. NDT allows inspection without damaging structures and can estimate properties, monitor changes, and find defects in concrete.
Non destructive testing of structures
Non-destructive testing (NDT) techniques allow inspection of materials, components, and structures without damaging them. Common NDT methods for structures include ultrasonic testing, rebound hammer testing, and radiographic testing. Ultrasonic pulse velocity testing measures the speed of ultrasonic pulses traveling through concrete to evaluate its quality and homogeneity. The rebound hammer test uses the rebound of an elastic mass to estimate the surface hardness and approximate compressive strength of concrete. NDT techniques provide cost-effective quality control and safety assessments for structures.
Presentation on non destructive testing
Non-destructive testing (NDT) refers to techniques used to evaluate the properties of a material, component, or structure without damaging it. The document discusses several common NDT methods, including visual testing, dye penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiography testing. It provides details on the basic principles, processes, advantages, and limitations of these important NDT techniques.
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This document provides an introduction to non-destructive testing (NDT) methods. It defines NDT as using noninvasive techniques to determine the integrity of a material or structure without causing damage. The six most common NDT methods are described as visual testing, liquid penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiographic testing. Examples are given of how each method is used to inspect aircraft components, bridges, pipelines and other structures and materials. NDT plays an important role in quality control and safety across many industries.
Recommended
Rebar detector Test of Nondestructive Test
The document discusses rebar detectors, which are non-destructive testing devices that use magnetic fields to locate reinforcing steel bars embedded in concrete. It provides background on rebar detection techniques and focuses on commercially available cover meters. The document explains that rebar detectors work by sensing the magnetic response of steel to quickly and accurately determine bar locations before drilling or coring concrete structures.
rebar detector
This document discusses non-destructive testing methods for locating rebar in concrete structures. It introduces rebar detection devices that use magnetic fields to locate rebar based on the principle that steel is affected by magnetic fields. The document outlines different rebar detection instruments, including Profoscope and Profometer models, and describes their mechanisms, uses, and procedures for locating rebar positions without damaging the concrete.
Non-Destructive Testing (NDT)
Hello guys,
I am here to share my knowledge on Non-Destructive Testing (NDT). In this presentation, I tried to explain on the following topics:
1. why we use NDT (purpose)?
2. Condition Assessment of the Structures by Non-destructive Evaluation Techniques
3. Concrete Petrography Implications
4. Potential as a Diagnostic Technique
5. Common Applications of Microscopy in Concrete Science and Technology
6. Thermographic (Infrared Thermal Imaging)
With interesting pictures
and much more...
I put some effort to present in front of you. So, kindly if you find any mistakes feel free to text.
Non destructive test in CIVIL ENGINEERING Construction
NON DESTRUCTIVE TEST (NDT)
SAURABH GUPTA
BLOG - http://notescivil.blogspot.in/
After this seminar you will able to answer the following
Non- destructive testing
Rebound hammer testing
Ultrasonic pulse velocity test
Cover test
methods including principle, advantages and point of action
NDT
Technique to test new or old concrete structure with respect to its strength and durability ,without or partial damage to a small part of concrete.
It doesn’t estimate ultimate or yield strength of concrete.
It is easy mechanized method, and is very cost effective , many test can be performed at the same cost of single destructive test.
No sample is required to collect for the laboratory testing as compare to some methods destructive testing
TEST
Rebound Hammer Test
Windsore Probe Testing
Ultrasonic Pulse Velocity Test
Acoustic Emission Method
Pulse Echo Method
Initial Surface Absorption Test
Radar Technique
Infrared Thermography
Quantab Test
Carbonation test
Profometer / Rebar locator
REBOUND HAMMER TEST (IS 13311 II)
Determination of strength and hardness of concrete.
ULTRASONIC PULSE VELOCITY TEST (IS 13311 I)
To determine the homogeneity, compatibility and cracks or void if present .
PROFOMETER / REBAR LOCATOR
Location of bar and diameter of bar
CARBONATION TEST
To estimate the amount of carbon and corrosion estimation.
To assess the likely compressive strength of concrete with help of with suitable co-relations between rebound index and compressive strength.
To assess the uniformity of concrete.
To assess the quality of concrete in relation to standard requirements.
To assess the quality of one element of concrete in relation to another
This method can be used with greater confidence for differentiating between the questionable and acceptable part of a structure or for relative comparison between two different structure.
When the plunger of rebound hammer is pressed against the surface of concrete, the spring control mass rebounds and the extent of such rebound depend upon the surface hardness of concrete, the rebound is thus related with compressive strength of concrete and the graduated scale is designated as rebound number
It Consists of spring controlled mass that slides on a plunger within a tubular housing.
The impact energy required for rebound hammer for different application is different (shown in table in next slide)
Rebound hammer is used to check –
1 Compressive strength of concrete
2 Uniformity of concrete
3 Quality of element of concrete
Ultrasonic pulse velocity test
To assess the uniformity and homogeneity of concrete.
To assess the quality of concrete in relation of standard requirement.
Detection of presence of voids, cracks & imperfection of concrete.
Measurement of changes occurring with time in the properties of concrete.
To overcome all these problems, the methods have been developed for investigation and evaluation of concrete st
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This document discusses non-destructive testing (NDT) techniques for assessing concrete structures. It describes several NDT methods for evaluating concrete strength, locating rebar, detecting cracks, and assessing corrosion. Methods for strength assessment include rebound hammers, windsor probes, ultrasonic tests, and permeability tests. Corrosion can be evaluated using corrosion analyzers and resistivity meters.Rebar location and details can be obtained using profometers. Cracks are detected using microscopes, eddy current meters, and infrared cameras. NDT allows inspection without damaging structures and can estimate properties, monitor changes, and find defects in concrete.
Non destructive testing of structures
Non-destructive testing (NDT) techniques allow inspection of materials, components, and structures without damaging them. Common NDT methods for structures include ultrasonic testing, rebound hammer testing, and radiographic testing. Ultrasonic pulse velocity testing measures the speed of ultrasonic pulses traveling through concrete to evaluate its quality and homogeneity. The rebound hammer test uses the rebound of an elastic mass to estimate the surface hardness and approximate compressive strength of concrete. NDT techniques provide cost-effective quality control and safety assessments for structures.
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Non-destructive testing (NDT) refers to techniques used to evaluate the properties of a material, component, or structure without damaging it. The document discusses several common NDT methods, including visual testing, dye penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiography testing. It provides details on the basic principles, processes, advantages, and limitations of these important NDT techniques.
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This document provides an introduction to non-destructive testing (NDT) methods. It defines NDT as using noninvasive techniques to determine the integrity of a material or structure without causing damage. The six most common NDT methods are described as visual testing, liquid penetrant testing, magnetic particle testing, ultrasonic testing, eddy current testing, and radiographic testing. Examples are given of how each method is used to inspect aircraft components, bridges, pipelines and other structures and materials. NDT plays an important role in quality control and safety across many industries.
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2. The presentation discusses various non-destructive testing (NDT) techniques used to evaluate the strength and properties of concrete structures without damaging them.
3. NDT methods described include rebound hammer, ultrasonic pulse velocity, Windsor probe, core cutter, permeability tester, and more to assess properties like compressive strength, crack detection, reinforcement details, and corrosion.
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1. A reinforced concrete beam was tested under static two-point concentrated loading to study the effect of different web reinforcement arrangements on ultimate shear strength.
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The document provides an overview of non-destructive testing (NDT) techniques for evaluating concrete structures. It discusses why NDT is needed as an alternative to traditional destructive testing that only examines small sample areas. Three main NDT systems are described - ultrasonic tomography, impact-echo, and impulse-response testing. Ultrasonic tomography uses ultrasound pulses to create 3D images of internal defects. Impact-echo detects depths of defects by analyzing frequency responses from impact-generated waves. Impulse-response evaluates plate structures by measuring vibration responses. Example applications on bridges demonstrate how the techniques can locate tendon duct grouting, casting defects, and delaminations. The document aims to illustrate how NDT provides a more comprehensive
Introduction to nondestructive testing
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Destructive & Non Destructive Testing Of Materials
Destructive and non-destructive testing are two types of material testing. Destructive testing involves testing specimens until failure to understand material performance under loads, while non-destructive testing evaluates material properties without damage using techniques like ultrasound, dye penetrant, and eddy current. Common destructive tests include tensile testing and impact testing, while common non-destructive tests include ultrasound, dye penetrant, eddy current, and visual inspection. Destructive testing yields more information but is more costly, while non-destructive testing allows evaluation without compromising the sample.
ndt test (non destructive testing) for civil engg. material ANSHUL
NON DESTRUCTIVE TESTING IS TEST OF MATERIAL WITHOUT DESTRUCTION OF PHYSICAL , CHEMICAL AND QUANTITATIVE CHANGE REBOUND HAMMER ,USPV METRE.
Non destructive testing in concrete
Non-destructive testing methods like rebound hammer testing and pulse velocity testing can evaluate properties of hardened concrete like strength and homogeneity without damaging the structure. Rebound hammer testing involves measuring the rebound of an elastic mass from the concrete surface, which relates to hardness and compressive strength. Pulse velocity testing uses transducers to transmit and receive ultrasonic pulses through the concrete, and the pulse velocity relates to properties like elastic modulus and presence of flaws. Both are useful for quality control, condition assessment of existing structures, and estimating concrete strength.
NDT techniques
This document summarizes a technical seminar on non-destructive testing (NDT). It defines NDT as techniques used to evaluate materials without causing damage. The objectives of NDT are outlined, including avoiding failures and accidents. Common NDT methods are described at a high level, such as liquid penetrant testing, ultrasonic testing, radiography, and eddy current testing. Specific NDT techniques are then summarized, including advantages and limitations. The document emphasizes that NDT can save costs by detecting flaws without damaging components. Proper training is needed to effectively apply these techniques.
Ndt course
Non-Destructive Testing is a simple way of testing without destroying.Techshore Inspection Services, with a humble beginning in Cochin, India started as an Engineering, Procurement and Construction company offering wide range of innovative services and engineering solutions in the field of Oil and Gas, Power and other major industries in the disciplines of Mechanical, Civil, Instrumentation and NDT, soon expanded its business into professional training in all the aforesaid disciplines.
Seminar report on Non Destructive Testing
This document provides a summary of non-destructive testing (NDT) methods. It discusses various NDT techniques such as visual inspection, dye penetration testing, magnetic particle inspection, and ultrasonic testing. For each method, it explains the basic principles, testing procedures, advantages, and limitations. The document is a report submitted by a student to their professor on the topic of NDT, as indicated by the title and introduction. It aims to inform the reader about common NDT approaches through detailed descriptions of select techniques.
Construction Diagnostic Centre Pvt Ltd - Company profile
CDCPL offers following services
1) Structural Audit & Certification
2) Non Destructive Testing
3) Construction Material Laboratory Testing
4) Repair & Rehabilitation Consultancy
5) Concrete Quality Control and Audit
Non-destructive testing
This document summarizes various non-destructive testing techniques presented by Sonam Paljor, including ultrasonic testing, magnetic particle testing, eddy current testing, radiography testing, and liquid penetrant testing. It provides details on the types of faults each method can indicate, their applications, advantages, and disadvantages. The final section compares destructive and non-destructive testing, noting that non-destructive techniques allow inspection without damaging the material but require indirect measurements, while destructive testing directly measures material properties but requires loading that damages the sample.
Impact echo
Impact-echo is a non-destructive testing technique that uses stress waves produced by an impact on a material's surface to detect internal flaws. It works by measuring surface displacements from waves reflected by voids to determine depth and size of discontinuities. Common applications are for concrete and masonry to find cracks, delamination, voids, and debonds. Interpretation of impact-echo data involves identifying characteristic frequency peaks associated with distances to flaws. It has the advantages of only needing access to one surface and being able to locate internal flaws, but data interpretation can be difficult for thick or layered materials.
ghatefar
The document discusses early-age cracking in bridge deck slabs reinforced with glass fiber reinforced polymer (GFRP) bars. It presents the results of an experimental study involving eight cast-in-place GFRP reinforced concrete bridge deck slab prototypes. The study found that as the GFRP reinforcement ratio increased from 0.3% to 0.7% to 1.1%, the total average crack width and average reinforcement strain at cracking decreased. Increasing the GFRP reinforcement ratio helped to control early-age cracking in the bridge deck slabs. The research aims to develop suitable design methods for limiting early cracking in GFRP reinforced concrete bridge decks.
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Destructive & Non Destructive Testing Of Materials
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This document discusses properties of triangles and solving for unknown angles. It contains examples of solving equations for the value of x in isosceles and equilateral triangles where the sum of the angles is 180 degrees. It also provides examples of determining if a set of side lengths could form a real triangle based on the triangle inequality theorem.
The Crack Pattern Of R.C Beams Under Loading
1. A reinforced concrete beam was tested under static two-point concentrated loading to study the effect of different web reinforcement arrangements on ultimate shear strength.
2. It was observed that diagonal cracks developed first in deeper beams while flexural cracks developed first in shallower beams with sufficient reinforcement.
3. The crack pattern and failure mode were similar across all test beams despite variations in web reinforcement, with diagonal cracks forming first in deeper beams.
Fatigue testing
Fatigue is the weakening of a material caused by fluctuating stresses that occurs even at stress levels below the material's tensile strength. It happens in three stages: crack initiation, crack propagation, and final fracture. Fatigue life refers to the total number of cycles a material can withstand before failure. Fatigue strength is the stress level that causes failure after a given number of cycles. Endurance limit is the maximum stress that does not cause failure even after an infinite number of cycles. Fatigue testing determines the fatigue life and failure location of a specimen under repeated stressing to help prevent mechanical failures.
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- The document discusses several failure criteria theories for predicting failure in materials including brittle and ductile materials.
- Rankine's criteria and Mohr's criteria are based on maximum normal stresses and are applicable to brittle materials. Failure occurs when principal stresses reach ultimate tensile or compressive strengths.
- Maximum shear stress and von Mises criteria predict failure in ductile materials based on limiting shear stresses and distortion energy. Failure occurs when maximum shear stresses or distortion energy equals values from uniaxial tension tests.
Pullout test as a nondestructive test method in structural engineering
- The pullout test measures the force required to pull an embedded metal insert from hardened concrete. It has been shown to have good correlation with compressive strength.
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Ultrasonic Pulse Velocity Test
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This document summarizes the benefits of sponsoring a university business society focused on connecting, building, developing, and inspiring students. Sponsor benefits include interacting with motivated students from various fields at weekly events and conferences, promoting brands through the society's marketing materials and social media channels with over 2,000 followers, and accessing entrepreneurial students as potential investors. Sponsorship levels are outlined, with the main partner receiving extensive promotion and access to students in exchange for £3,000. The society provides workshops, competitions and speaker events to help students develop skills for careers or start-ups. Testimonials and examples praise the high-quality events and opportunities provided to students.
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Pullout test as a nondestructive test method in structural engineering
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Brittle Ductile Behaviour For ( STEEL - RIENFORCED CONCRETE - CONCRETE )
Brittle Ductile Behaviour For ( STEEL - RIENFORCED CONCRETE - CONCRETE )
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Rebar detector test
- 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.