Non-destructive testing (NDT) methods have a large potential to be part of such a system. NDT methods in general are widely used in several industry branches. Aircrafts, nuclear facilities, chemical plants, electronic devices and other safety critical installations are tested regularly with fast and reliable testing technologies. A variety of advanced NDT methods are available for metallic or composite materials. In reassessment of existing structures, have become available for concrete structures, but are still not established for regular inspections.
Therefore,the objective of this project is to study the applicability, performance, availability, complexity and restrictions of NDT. The purpose of establishing standard procedures for nondestructive testing (NDT) of concrete structures is to qualify and quantify the material properties of in-situ concrete without intrusively examining the material properties. There are many techniques that are currently being research for the NDT of materials today. It is focuses on the NDT methods relevant for the inspection and monitoring of concrete materials. In recent years, innovative NDT methods, which can be used for the assessment of existing structures, have become available for concrete structures, but are still not established for regular inspections. Therefore, the objective of this project is to study the applicability, performance, availability, complexity and restrictions of NDT.
The purpose of establishing standard procedures for nondestructive testing (NDT) of concrete structures is to qualify and quantify the material properties of in-situ concrete without intrusively examining the material properties. There are many techniques that are currently being research for the NDT of materials today. This chapter focuses on the NDT methods relevant for the inspection and monitoring of concrete materials.
The quality of new concrete structures is dependent on many factors such as type of cement, type of aggregates, water cement ratio, curing, environmental conditions etc. Besides this, the control exercised during construction also contributes a lot to achieve the desired quality. The present system of checking slump and testing cubes, to assess the strength of concrete, in structure under construction, are not sufficient as the actual strength of the structure depend on many other factors such as proper compaction, effective curing also. Considering the above requirements, need of testing of hardened concrete in new structures as well as old structures, is there to assess the actual condition of structures.
Non destructive test in CIVIL ENGINEERING Construction SAURABH GUPTA
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 concrete testing equipment
non destructive concrete testing methods
non destructive test Penetration method
Rebound hammer method
Pull out test method
Ultrasonic pulse velocity method
Radioactive methods
methods of testing concrete
concrete strength testing methods
types of non destructive testing
non destructive concrete testing equipment
concrete tests pdf
destructive and non destructive testing
concrete testing procedures
non destructive test for concrete
destructive and non destructive testing
non destructive testing pdf
types of non destructive testing
non destructive testing methods
non destructive testing methods ppt
Non destructive test in CIVIL ENGINEERING Construction SAURABH GUPTA
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 concrete testing equipment
non destructive concrete testing methods
non destructive test Penetration method
Rebound hammer method
Pull out test method
Ultrasonic pulse velocity method
Radioactive methods
methods of testing concrete
concrete strength testing methods
types of non destructive testing
non destructive concrete testing equipment
concrete tests pdf
destructive and non destructive testing
concrete testing procedures
non destructive test for concrete
destructive and non destructive testing
non destructive testing pdf
types of non destructive testing
non destructive testing methods
non destructive testing methods ppt
Hi viewers, I am back with the various concepts of TYPES OF TESTS ON CONCRETE for civil engineers.
Here, i explained few topics
What is a concrete? Classification based o state of concrete? and various tests?
Ultra sonic pulse velocity tests (Concrete technology)Jayshiv Bhimani
(UPV) testing of concrete is based on the pulse velocity method to provide information on the uniformity of concrete, cavities cracks, and defects or other discontinuities.
This presentation describes 6 methods to check concrete sample by performing non destructive testing.
1. Rebound hammer
2. Dye penetration test
3. Pull out test for concrete
4.Half cell potentiometer test
5.Rebar scanner
6 ultrasonic pulse velocity test
Hi viewers, I am back with the various concepts of TYPES OF TESTS ON CONCRETE for civil engineers.
Here, i explained few topics
What is a concrete? Classification based o state of concrete? and various tests?
Ultra sonic pulse velocity tests (Concrete technology)Jayshiv Bhimani
(UPV) testing of concrete is based on the pulse velocity method to provide information on the uniformity of concrete, cavities cracks, and defects or other discontinuities.
This presentation describes 6 methods to check concrete sample by performing non destructive testing.
1. Rebound hammer
2. Dye penetration test
3. Pull out test for concrete
4.Half cell potentiometer test
5.Rebar scanner
6 ultrasonic pulse velocity test
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity
This is Report for Rebond hummer test it is usufull and respect report . used in work and good for student .non destractive test
and for any one like this branch
Techshore Inspection Services offers QA/QC Civil-concrete NDT and Quantity surveying & Cost estimation. It is very important to ensure that the structure is suitable for its intended use after the concrete has hardened. For this purpose, we can perform non-destructive testing that does not damage the concrete. Non-destructive testing can be applied to both old and new structures. Lets understand the various concrete ndt methods
Safety aspects on construction site in noida area AnshulAnshul Shakya
The leading safety hazards on site are falls from height, motor vehicle crashes, excavation accidents, electrocution, machines, and being struck by falling objects. Some of the main health hazards on site are asbestos, solvents, noise, and manual handling activities.
The height limit where fall protection is required is not defined. It used to be 2 metres in the previous issue of Work at Height Regulations. It is any height that may result in injury from a fall. Protection is also required when the employee is at risk to falling onto dangerous equipment.
Fall protection can be provided by guardrail systems, safety net systems, personal fall arrest systems, positioning device systems, and warning line systems.
All employees should be trained to understand the proper way to use these systems and to identify hazards. The employee or employer will be responsible for providing fall protection systems and to ensure the use of these systems.
Employees on construction sites also need to be aware of dangers on the ground. The hazards of cables running across roadways were often seen, until cable ramp equipment was invented to protect hoses and other equipment which had to be laid out.
Motor Vehicle Crashes are another major safety hazard on construction sites. It is important to be safety cautious while operation motor vehicles or Equipment on the site. Motor vehicles shall have a service brake system,
emergency brake system, and a parking brake system. All vehicles must be equipped with an audible warning system if the operator chooses to use it. Vehicles must have windows and doors, power windshield wipers, and have a clear view of site from the rear window.
Equipment on the job site must have light and reflectors if intended for night use. The glass in the cab of the equipment must be safety glass. The equipment must be used for their intended task at all times on the job site.
Access and Egress is also an important part of excavation safety. Ramps used by equipment must be designed by a competent person, qualified in structural design.
No person is allowed to cross underneath or stand underneath any loading or digging equipment. Employees are to remain at a safe distance from all equipment while it is operational.
Inspect the equipment before every use.
PILE FOUNDATION PROJECT TRAINING ANSHULAnshul Shakya
PILE Foundation is the structure that exists under the soil strata. Generally it is constructed where loose strata or marshland. It increase the seismic property of any structure where large loads of soil exists.
Multi story building construction training report anshulAnshul Shakya
A Multi-storey is a building that has multiple floors above ground in the building.
Multi-storey buildings aim to increase the floor area of the building without increasing the area of the land the building is built on, hence saving land and, in most cases, money (depending on material used and land prices in the area). The building with the most stories is the Burj Khalifa, with 162.
The word building is both a noun and a verb: the structure itself and the act of making it. As a noun, a building is 'a structure that has a roof and walls and stands more or less permanently in one place "there was a three-storey building on the corner"; "it was an imposing edifice". In the broadest interpretation a fence or wall is a building However, the word structure is used more broadly than building including natural and man-made formations and does not necessarily have walls. Structure is more likely to be used for a fence. Sturgis' Dictionary included that "[building] differs from Architecture in excluding all idea of artistic treatment; and it differs from Construction in the idea of excluding scientific or highly skilful treatment.As a verb, building is the act of construction.
Structural height in technical usage is the height to the highest architectural detail on building from street-level. Depending on how they are classified, spires and masts may or may not be included in this height. Spires and masts used as antennas are not generally included. The definition of a low-rise vs. a high-rise building is a matter of debate, but generally three storeys or less is considered low-rise.
Multi story building construction anshulAnshul Shakya
Multi-storey buildings aim to increase the floor area of the building without increasing the area of the land the building is built on, hence saving land and, in most cases, money (depending on material used and land prices in the area). The building with the most storeys is the Jaypee green garden isles is 2B+G+38.
Method of cement manufacturing & during manufacturing different type pollute-net material like as dust ,CO2,SO2,CO occurs. So this PPT helpful to understand type of cement manufacturing like as wet / dry process & maintain environmental conditions by using EPS, wet scrubber ,cyclone separator, gravitational settling chamber on site.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
2. • Nondestructive testing in the broad sense
refers to methods whereby internal
characteristics of solid structures can be
examined without permanently affecting the
structure. Thus, parts that prove to be
satisfactory under specified test conditions are
not degraded by the test procedures
2/13/2015 2
3. Nondestructive testing (NDT) is the process of
inspecting, testing, or evaluating materials,
components or assemblies for discontinuities, or
differences in characteristics without destroying the
serviceability of the part or system. In other words,
when the inspection or test is completed the part
can still be used
2/13/2015 3
4. 1)-Assessment of Existing Structures in the
Absence of Drawings.
2)-Quick assessment of the structure.
2/13/2015 4
5. 1. Access to hidden items – “see through walls”
2. Better investigations with NDT
3. Rapid accumulation of data
4. Generally less expensive than destructive
testing.
2/13/2015 5
6. 1. More than one test method may be required
2. Environmental conditions may effect or
distort results
3. Construction details & building components
may effect results
4. Some conditions cannot be determined with
a reasonable degree of accuracy without
destructive testing
2/13/2015 6
7. 1-Rebound Hammer
2-Ultrasonic Pulse Velocity Meter
3-Pull Out
4.Core cutter
5-Covermeter
6- X ray computed tomography
7. Electric resistivity test
2/13/2015 7
8. • The rebound hammer can provide a fairly
accurate estimate of concrete compressive
strength.
• The concrete should be 14 to 56 days old.
• Surface Condition:
• The surface of the concrete at the point tested
must be smooth, dry, and free of honeycombing.
Otherwise, rebound readings will be low
Indicating a weaker concrete than is actually the
case. The rubbing stone provided can be used to
grind the surface smooth, if necessary.
2/13/2015 8
9. The concrete to be tested must be at least four
inches thick: It is also recommended that
readings be taken only where the concrete has
been in contact with the form. These conditions
are most easily satisfied if the readings are taken
along the edge of the tank on the sides and ends
where the adjoining concrete face (i.e., wall,
top, or bottom) can support the point of
contact.
2/13/2015 9
11. • A). Remove hammer from case and press the
plunger end against a hard surface to release the
plunger from the locked position. (Do not press
lock button while doing this.)
• B). Position hammer horizontally with plunger
end against wall at a point.
• C). Slowly apply pressure until hammer fires. This
will occur when only approximately 1/2 inch of
the plunger is still visible. Do not press the lock
button during this step.
2/13/2015 11
12. • With the hammer still pressed against the
wall, read the rebound number off the scale
provided on the hammer. If it is necessary to
move the hammer before reading, press the
lock button. The rebound number should be
read to two significant figures.
• Repeat the above procedure at different
points around the wall until a total of ten
readings has been taken
2/13/2015 12
14. • This is based on the principle that the velocity of an
ultrasonic pulse through any material depends
upon the density. Comparatively higher velocity is
obtained when concrete quality is good in terms of
density, uniformity etc.
• Pulse Velocity measurements can be used to assess
the presence of cracks, voids etc., quality of
concrete relative to standards requirements.
2/13/2015 14
15. There are three possible ways of measuring
pulse velocity.
i) Direct transmission
ii) Semi direct transmission
iii) Indirect transmission (surface probing)
Out of the three methods, the direct
transmission method is considered to be the best.
2/13/2015 15
17. condition of concrete based on pulse
velocity are given below:
S.No. Pulse Velocity Condition of concrete
I in(Km/Sec.)
• 1. Above 4.5 Excellent
• 2. 3.5 to 4.5 Good
• 3. 3.0 to 3.5 Medium
• 4. Below 3.0 Poor
2/13/2015 17
18. • The fundamental principle behind pull out testing
with LOK-test and CAPO test is that the test
equipment designed to a specific geometry will
produce results (pull-out forces) that closely
correlate to the compressive strength of concrete.
The first method ,using the cast steel disc is called LOK
test. The second method shown in fig.2 using
expandable ring is called CAPO test (i.e. Cut and Pull
out Test). The diameter of both the disc and ring is
25mm. the distance to the concrete surface is also
25mm. the inner diameter of the counter-pressure is
55mm.2/13/2015 18
20. The relationship between the pullout
force Fu in kN and compressive
strength Fc in MPa is given in fig
2/13/2015 20
21. • Determine in-situ compressive strength of the
concrete
• Ascertain the strength of concrete for carrying
out post tensioning operations.
• Determine the time of removal of forms and
shores based on actual in-situ strength of the
structure.
• Terminate curing based on in-situ strength of
the structure.
2/13/2015 21
22. The test should be taken at points where
minimum strength and maximum stress are likely to
coincide. But, at the same time, the core cutting
causes some damage to the member and may impair
the future performance of the member. Therefore, in
slender members, the core should be taken away
from the critical section. For compression testing, the
diameter of the core should be at least three times
the nominal maximum aggregate size.
2/13/2015 22
23. Core Cutter is used to cut the core from the
existing concrete structure for testing the
physical properties of the concrete like
compressive strength, density, water absorption,
crack depth and chemical test like depth of
carbonation and chloride content etc. It can also
be used to inspect the interior region of the
structural members.
2/13/2015 23
25. Cover meters are electromagnetic in operation.
Electric currents in a coil winding in the search
head generate a magnetic field which
propagates through the concrete and will
interact with any buried metal present, such as
reinforcing steel.It is the generic term for
equipment used to locate steel reinforcing bar in
concrete and to estimate the thickness of the
concrete cover over the reinforcement.
27. Tomography means imaging an object by taking
measurements from “slices” of its cross-section.
2/13/2015 27
28. In computed tomography, the image of an
object is reconstructed from projections of the
object.
• Most commonly the projections are obtained
by using penetrating x-rays, although other
modalities for measuring projection data are
also available.
2/13/2015 28
31. This test is carried out to assess the quality / uniformity
of concrete at various depths. The instrument consists of
a four probe device. Electrical current is passed through
the outer probes & the potential drop is measured by the
inner probes. From the current & voltage drop
measurements, the resistivity of concrete can be
measured.
Electrical resistivity = 2(pi)aE/i (in kilo-ohm cm)
where a = distance between probes
= 5 cm in the 1st set of readings
= 10 cm in the 2nd set of readings
E = potential difference between inner two probes in mV
Most useful test in tunnel structure.
2/13/2015 31