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?
Workability of concrete is defined as the ease and homogeneity with which a freshly mixed concrete or mortar can be mixed, placed, compacted and finished. Strictly, it is the amount of useful internal work necessary to produce 100% compaction.
Quality Control in Concrete and Durability factors : An overviewbybyRAJESH PRASAD,IRSE, CPM/M, RVNL. KOLKATA. An interesting and informative presentation....
MEANING OF MIX DESIGN
GRADE OF CONCRETE.
FACTORS INFLUCING THE CHOICE OF MIX DESIGN.
MATHODS OF CONCRETE MIX DESIGN
MIX DESIGN BY INDIAN STANDARD METHOD.
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?
Workability of concrete is defined as the ease and homogeneity with which a freshly mixed concrete or mortar can be mixed, placed, compacted and finished. Strictly, it is the amount of useful internal work necessary to produce 100% compaction.
Quality Control in Concrete and Durability factors : An overviewbybyRAJESH PRASAD,IRSE, CPM/M, RVNL. KOLKATA. An interesting and informative presentation....
MEANING OF MIX DESIGN
GRADE OF CONCRETE.
FACTORS INFLUCING THE CHOICE OF MIX DESIGN.
MATHODS OF CONCRETE MIX DESIGN
MIX DESIGN BY INDIAN STANDARD METHOD.
NDT (NON DESTRUCTIVE TESTING) OF CONCRETE STRUCTURE ANSHULAnshul Shakya
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.
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.
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
The aggregate is a relatively inert material and it imparts volume stability.
The aggregate provide about 75% of the body of the concrete and hence its influence is extremely important (70 to 80 %)
An aggregate should be of proper shape and size, clean, hard and well graded.
It must possess chemical stability and it must exhibit abrasion resistance.
Classification of Aggregate
I. Classification Based on Size
a. Fine aggregates:
b. Coarse aggregates:
II. Classification Based on Shape
a. Rounded aggregate:
b. Irregular aggregates
c. Angular aggregates
d. Flaky and elongated aggregates
III. Classification based on unit weight
a. Normal weight aggregates
b. Heavy weight aggregates
c. Light weight aggregates
The physical properties of aggregates are;
1. Shape
2. Size
3. Color
4. Texture
5. Gradation
6. Fineness modulus
Effect of aggregate properties on concrete
a. Particle Size, Grading and Dust Content
b. Particle Shape
c. Particle Surface Texture
d. Water Absorption
fineness modulus - According to IS 2386-1963, the sieves that are to be used for the sieve analysis of the aggregate for concrete are 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1.18mm, 600m, 300m and 150m.
Gradation of aggregates
Gradation refers to the particle size distribution of aggregates.
The gradation of coarse aggregate plays an important role in workability and paste requirements.
The gradation of fine aggregate affects the workability and finishing ability of concrete.
Types of gradation:
a. Well graded
b. Poor / Uniform graded
c. Gap graded
Mechanical Properties
The following are the properties to be analyzed for aggregates, they are
a. Toughness
b. Hardness
c. Specific gravity
d. Bulk Density
e. Porosity and absorption of aggregates
f. Moisture content of aggregate
Mechanical Strength Test
a. Crushing strength Test
b. Impact strength Test
c. Abrasion Test (Los Angeles Test)
Water (for concrete)
Water is the most important material for construction, especially for making concrete.
The purpose of water in concrete are
a. It distributes the cement evenly.
b. It reacts with cement chemically and produces calcium silicate hydrate (C-S-H) gel which gives the strength to concrete.
c. It provides for workability, i.e., it lubricates the mix.
d. Hence, for construction, quantity and quality of water is as important as cement.
As water quantity goes up in a mix (ill effect), the following are the effects:
a. Strength decreases
b. Durability decreases
c. Workability increases
d. Cohesion decreases
e. Economy may increase at the expense of quality and reliability.
Quality of water for concrete (IS10500:2012)
a. Chlorides: They can cause corrosion of steel reinforcement, can accelerate setting.
b. Sulphates: They reduce long-term strength levels.
c. Organic matter: If an alga is present, water should not be used. It will affect the setting and strength development.
d. Sugar: It will retard setting time.
e. Wastewater: It should never be used in construction.
Rebound hammer test - Maintenance and Rehabilitation of StructuresAshishVivekSukh
Rebound Hammer test is a Non-destructive testing method of concrete.
Rapid indication of the compressive strength of the concrete.
The rebound hammer is also called as Schmidt hammer.
Consist of a spring controlled mass that slides on a plunger within a tubular housing.
Rheology of Fresh Self Compacted Concrete - Concrete Shear Box_ Ajay and Dr.G...ajay nagaraj
Flow characterization and controlling fresh property of SCC is most critical. Even slight variations in ingredients can have adverse effect on fresh properties; strength and durability of hardened concrete. The material science approach to study rheological properties is essential in order to overcome the paucity posed while characterizing mixes by empirical methods such as the slump flow test.
In the present work, the Bingham parameters of SCC were assessed by using the new concrete shear box. The mixes were designed considering volume of paste based on absolute volume concept. Three different volumes of pastes (0.38, 0.40 and 0.42) with water contents of 170 and 190 lt/m3 and cement contents of 300 and 450 kg/m3 along with slag as filler was used. A unique test procedure was followed, by applying low normal stresses of 0.10, 0.20 and 0.30 MPa with three different displacement rates of 1, 5 and 15mm/min under static condition. The results indicate that the new concrete shear box shall effectively put to use, as an additional tool for evaluating the rheological properties of SCC viz., yield stress and plastic viscosity
Tests on fresh concrete SLUMP TEST VEE BEE TEST COMPACTION FACTOR TESTNisarg Mistry
THIS PDF IS ABOUT TESTS ON FRESH CONCRETE USED ON FIELD AND IN LABS.
IT INCLUDES TEST METHODOLOGY
TEST DATA INTERPRETATION AND PICTURES OF APPRATUS USED
NDT (NON DESTRUCTIVE TESTING) OF CONCRETE STRUCTURE ANSHULAnshul Shakya
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.
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.
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
The aggregate is a relatively inert material and it imparts volume stability.
The aggregate provide about 75% of the body of the concrete and hence its influence is extremely important (70 to 80 %)
An aggregate should be of proper shape and size, clean, hard and well graded.
It must possess chemical stability and it must exhibit abrasion resistance.
Classification of Aggregate
I. Classification Based on Size
a. Fine aggregates:
b. Coarse aggregates:
II. Classification Based on Shape
a. Rounded aggregate:
b. Irregular aggregates
c. Angular aggregates
d. Flaky and elongated aggregates
III. Classification based on unit weight
a. Normal weight aggregates
b. Heavy weight aggregates
c. Light weight aggregates
The physical properties of aggregates are;
1. Shape
2. Size
3. Color
4. Texture
5. Gradation
6. Fineness modulus
Effect of aggregate properties on concrete
a. Particle Size, Grading and Dust Content
b. Particle Shape
c. Particle Surface Texture
d. Water Absorption
fineness modulus - According to IS 2386-1963, the sieves that are to be used for the sieve analysis of the aggregate for concrete are 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1.18mm, 600m, 300m and 150m.
Gradation of aggregates
Gradation refers to the particle size distribution of aggregates.
The gradation of coarse aggregate plays an important role in workability and paste requirements.
The gradation of fine aggregate affects the workability and finishing ability of concrete.
Types of gradation:
a. Well graded
b. Poor / Uniform graded
c. Gap graded
Mechanical Properties
The following are the properties to be analyzed for aggregates, they are
a. Toughness
b. Hardness
c. Specific gravity
d. Bulk Density
e. Porosity and absorption of aggregates
f. Moisture content of aggregate
Mechanical Strength Test
a. Crushing strength Test
b. Impact strength Test
c. Abrasion Test (Los Angeles Test)
Water (for concrete)
Water is the most important material for construction, especially for making concrete.
The purpose of water in concrete are
a. It distributes the cement evenly.
b. It reacts with cement chemically and produces calcium silicate hydrate (C-S-H) gel which gives the strength to concrete.
c. It provides for workability, i.e., it lubricates the mix.
d. Hence, for construction, quantity and quality of water is as important as cement.
As water quantity goes up in a mix (ill effect), the following are the effects:
a. Strength decreases
b. Durability decreases
c. Workability increases
d. Cohesion decreases
e. Economy may increase at the expense of quality and reliability.
Quality of water for concrete (IS10500:2012)
a. Chlorides: They can cause corrosion of steel reinforcement, can accelerate setting.
b. Sulphates: They reduce long-term strength levels.
c. Organic matter: If an alga is present, water should not be used. It will affect the setting and strength development.
d. Sugar: It will retard setting time.
e. Wastewater: It should never be used in construction.
Rebound hammer test - Maintenance and Rehabilitation of StructuresAshishVivekSukh
Rebound Hammer test is a Non-destructive testing method of concrete.
Rapid indication of the compressive strength of the concrete.
The rebound hammer is also called as Schmidt hammer.
Consist of a spring controlled mass that slides on a plunger within a tubular housing.
Rheology of Fresh Self Compacted Concrete - Concrete Shear Box_ Ajay and Dr.G...ajay nagaraj
Flow characterization and controlling fresh property of SCC is most critical. Even slight variations in ingredients can have adverse effect on fresh properties; strength and durability of hardened concrete. The material science approach to study rheological properties is essential in order to overcome the paucity posed while characterizing mixes by empirical methods such as the slump flow test.
In the present work, the Bingham parameters of SCC were assessed by using the new concrete shear box. The mixes were designed considering volume of paste based on absolute volume concept. Three different volumes of pastes (0.38, 0.40 and 0.42) with water contents of 170 and 190 lt/m3 and cement contents of 300 and 450 kg/m3 along with slag as filler was used. A unique test procedure was followed, by applying low normal stresses of 0.10, 0.20 and 0.30 MPa with three different displacement rates of 1, 5 and 15mm/min under static condition. The results indicate that the new concrete shear box shall effectively put to use, as an additional tool for evaluating the rheological properties of SCC viz., yield stress and plastic viscosity
Tests on fresh concrete SLUMP TEST VEE BEE TEST COMPACTION FACTOR TESTNisarg Mistry
THIS PDF IS ABOUT TESTS ON FRESH CONCRETE USED ON FIELD AND IN LABS.
IT INCLUDES TEST METHODOLOGY
TEST DATA INTERPRETATION AND PICTURES OF APPRATUS USED
Lesson: Concrete Technology - Building Materials
The quality of aggregate affect the durability and strength of concrete. Since about 3/4 of the volume of concrete is occupied by aggregate.
When crawler cranes are used on high-lift job sites they generate unique operating conditions that result in unique wire rope deterioration. This session features four leading industry experts who will share their insights on the behavior of wire rope in such circumstances and provide you with guidelines for inspection, repair, or replacement.
Moderator: Tony Fastuca, Vice President, ASC/Python America
Panelists:
Justin Brown, Product Manager, Unirope Limited
Mario Hartl, Teufelberger Wire Rope
Dave Sleightholm, Manager, Customer Technical Support, Bridon Bekaert
API 12F Shop Welded Tank Pressure AnalysisKieran Claffey
I performed a finite element stress analysis to validate current pressure and vacuum allowable limits for API 12F shop welded tanks. I was invited to speak at the American Petroleum Institute 2014 Fall Refining and Equipment Standards Conference in Denver CO, on the topic of pressure studies of API 12F series tanks. The work was performed for the API Committee on Refinery Equipment, Subcommittee on Above-ground Storage Tanks (SCAST), Work Group on 12 Series documents, and Task Group on 12F Pressure Research, and was used as a basis for further consultation and pressure studies commissioned by the API.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
4. WHAT IS A SLUMP TEST ?WHAT IS A SLUMP TEST ?
A SLUMP TEST IS A TEST OF THEA SLUMP TEST IS A TEST OF THE
WORKABILITY OF CONCRETEWORKABILITY OF CONCRETE
EQUIPMENT FOR SLUMP TEST :EQUIPMENT FOR SLUMP TEST :
1.1. BASE PLATEBASE PLATE
2.2. TROWEL TO MIX CONCRETETROWEL TO MIX CONCRETE
3.3. STEEL TAMPING RODSTEEL TAMPING ROD
4.4. SLUMP CONESLUMP CONE
5.5. RULERRULER
5. WORKABILITY OF CONCRETEWORKABILITY OF CONCRETE
THE WORKABILITY OF CONCRETE IS AFFECTED BY THETHE WORKABILITY OF CONCRETE IS AFFECTED BY THE
AMOUNT OF WATER IN THE MIXAMOUNT OF WATER IN THE MIX
TOO MUCH WATER CAN MAKE CONCRETE WEAKTOO MUCH WATER CAN MAKE CONCRETE WEAK
NOT ENOUGH CONCRETE CAN MAKE THE CONCRETENOT ENOUGH CONCRETE CAN MAKE THE CONCRETE
TOO HARD TO WORK WITHTOO HARD TO WORK WITH
6. PROCEDUREPROCEDURE
1.1. Place the cone on a level waterproof basePlace the cone on a level waterproof base
2.2.
3.3. Place your feet on the holding down lugsPlace your feet on the holding down lugs
4.4.
5.5. Place 75mm of concrete in the cone and tampPlace 75mm of concrete in the cone and tamp
25times25times
4. Repeat this action 3 more times until the cone is4. Repeat this action 3 more times until the cone is
full and screed off the topfull and screed off the top
7. CONTINUE :CONTINUE :
1. Gently lift cone from the concrete
2.
3. Area cone beside concrete and put tamping rod
across the top of the cone
6. Measure down from the bottom of tamping rod of
top of the concrete
4. The measurement is the slump of the concrete
12. What does a slump test measure ?What does a slump test measure ?
WORKABILITYWORKABILITY
What affects slump ?What affects slump ?
AMOUNT OF MIX WATERAMOUNT OF MIX WATER
How many time do you tamp a 75mm layer ofHow many time do you tamp a 75mm layer of
Concrete ?Concrete ?
25 TIMES25 TIMES
14. WHAT IS VEBE TEST ?WHAT IS VEBE TEST ?
ITS DETERMINE THE WORKABILITY OFITS DETERMINE THE WORKABILITY OF
FRESHLY CONCRETE BY USINGFRESHLY CONCRETE BY USING
CONSISTOMETER APPARATUSCONSISTOMETER APPARATUS
APPARATUSAPPARATUS
..Ve-Be apparatus (consisting of vibrating table, slump cone
•Cylindrical container,
•Standard tamping rod,
•Stop watch and
•Trowels.
15.
16.
17. PROCEDURE :
1.1. Same as slump testSame as slump test
2.2. After the Slump test we can start ve-be testAfter the Slump test we can start ve-be test
3. Switch on the electrical vibrations and start the
stopwatch. Allow the concrete to remold by
spreading out in the cylindrical container. The
vibrations are continued until the concrete is
completely remolded, i.e., the surfaces becomes
horizontal and the whole concrete surface adheres
uniformly to the transparent disc.
4. Record the time required for complete
remolding seconds which measures the workability
18.
19. ADvAntAgEs:
1.The Vebe consistometer is a dynamic test and canThe Vebe consistometer is a dynamic test and can
be used on concretes that are too dry for the slumpbe used on concretes that are too dry for the slump
test. test. 2. Test results are obtained
directly.
DisADvAntAgEs:
1. Due to the need to ensure that all vibration is
kept within the test device, the size of the test device
makes the Vebe consistometer generally unsuitable
for field use.
2. The test device only works for low slump