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The document reports the results of several standard tests measuring the properties of different types of dimensional stone, including marble samples from Minya, Zafarana, Srabganda, and Grey. For each sample, measurements are given for absorption rate, bulk specific gravity, modulus of rupture, compressive strength when dry, abrasion resistance, and flexural strength when dry, based on testing conducted according to ASTM standards C97, C99, C170, C241, and C880.
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The document reports the results of several standard tests measuring the properties of four types of dimensional stone: Triesta, Golden Cream, Sunny, and Milbrown marble. For each stone, measurements are given for absorption, bulk specific gravity, modulus of rupture, compressive strength when dry, abrasion resistance, and flexural strength according to ASTM testing standards C97 through C880. The results show variations in each property across the different marble samples.
pagina_1-2
The document reports the results of several standard tests measuring the properties of different types of dimensional stone, including marble, katmeya, feleto, and imperial beige. For each stone, measurements are given for absorption, bulk specific gravity, modulus of rupture, compressive strength, abrasion resistance, and flexural strength based on ASTM testing standards C97, C99, C170, C241, and C880. The tests were conducted on samples in dry conditions and the results are reported as averages from multiple tests.
pagina_7-8
The document reports the results of several standard tests measuring the properties of four types of dimensional stone: Red Aswan, Red Fersan, Red Royal, and Granite. For each stone, the absorption rate, bulk specific gravity, modulus of rupture, compressive strength, abrasion resistance, and flexural strength are provided based on ASTM standard test methods C97, C99, C170, C241, and C880. The tests were conducted on samples cut perpendicular to the stone's natural bedding plane.
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The document reports the results of strength and durability testing performed on four types of dimensional stone (Red Zaytoun, New Halayeb, Great Stone, Giandouna) according to five ASTM standards. For each stone, the average absorption, bulk specific gravity, modulus of rupture, compressive strength, and flexural strength are provided based on tests of three to five samples conducted per each standard.
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This lab report describes procedures for determining the uniaxial compressive strength of rock samples using point load testing. Specimens are placed between platens and loaded until failure. The failure load is used to calculate the point load strength index and index correction factor, which are then used to determine the uniaxial compressive strength. Tests were conducted on both core and irregular samples under both axial and diametrical loading. Observations and calculations are presented for several test specimens.
Universal testing machines
The document discusses tensile testing procedures and principles. It outlines the components of a universal testing machine used for tensile testing, including the load frame, load cell, crosshead, and output devices. It then provides details on conducting a tensile test, including specimen preparation, loading procedure, and data collection. Examples are given demonstrating how load and elongation data can be used to determine material properties and how finite element analysis can simulate the effects of strain hardening.
TENSILE TEST REPORT
In the material testing laboratory, Tensile test was done on a mild steel specimen as figure 4 to identify the young’s modulus, ultimate tensile strength, yield strength and percentage elongation. The results were as table 1
2
This lab report details procedures for determining the uniaxial compressive strength of rocks and concrete using Schmidt rebound hammers. Rebound hammers measure the elastic properties of materials by striking a spring-driven pin and measuring its rebound. Readings are used to estimate compressive strength by referencing conversion tables. Tests found that a quartzite rock sample had poor quality based on a rebound number equivalent to 41MPa of compressive strength, while a concrete sample had a good quality layer with a rebound number of 43MPa.
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pagina_3-4
The document reports the results of several standard tests measuring the properties of four types of dimensional stone: Triesta, Golden Cream, Sunny, and Milbrown marble. For each stone, measurements are given for absorption, bulk specific gravity, modulus of rupture, compressive strength when dry, abrasion resistance, and flexural strength according to ASTM testing standards C97 through C880. The results show variations in each property across the different marble samples.
pagina_1-2
The document reports the results of several standard tests measuring the properties of different types of dimensional stone, including marble, katmeya, feleto, and imperial beige. For each stone, measurements are given for absorption, bulk specific gravity, modulus of rupture, compressive strength, abrasion resistance, and flexural strength based on ASTM testing standards C97, C99, C170, C241, and C880. The tests were conducted on samples in dry conditions and the results are reported as averages from multiple tests.
pagina_7-8
The document reports the results of several standard tests measuring the properties of four types of dimensional stone: Red Aswan, Red Fersan, Red Royal, and Granite. For each stone, the absorption rate, bulk specific gravity, modulus of rupture, compressive strength, abrasion resistance, and flexural strength are provided based on ASTM standard test methods C97, C99, C170, C241, and C880. The tests were conducted on samples cut perpendicular to the stone's natural bedding plane.
pagina_9-10
The document reports the results of strength and durability testing performed on four types of dimensional stone (Red Zaytoun, New Halayeb, Great Stone, Giandouna) according to five ASTM standards. For each stone, the average absorption, bulk specific gravity, modulus of rupture, compressive strength, and flexural strength are provided based on tests of three to five samples conducted per each standard.
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This lab report describes procedures for determining the uniaxial compressive strength of rock samples using point load testing. Specimens are placed between platens and loaded until failure. The failure load is used to calculate the point load strength index and index correction factor, which are then used to determine the uniaxial compressive strength. Tests were conducted on both core and irregular samples under both axial and diametrical loading. Observations and calculations are presented for several test specimens.
Universal testing machines
The document discusses tensile testing procedures and principles. It outlines the components of a universal testing machine used for tensile testing, including the load frame, load cell, crosshead, and output devices. It then provides details on conducting a tensile test, including specimen preparation, loading procedure, and data collection. Examples are given demonstrating how load and elongation data can be used to determine material properties and how finite element analysis can simulate the effects of strain hardening.
TENSILE TEST REPORT
In the material testing laboratory, Tensile test was done on a mild steel specimen as figure 4 to identify the young’s modulus, ultimate tensile strength, yield strength and percentage elongation. The results were as table 1
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This lab report details procedures for determining the uniaxial compressive strength of rocks and concrete using Schmidt rebound hammers. Rebound hammers measure the elastic properties of materials by striking a spring-driven pin and measuring its rebound. Readings are used to estimate compressive strength by referencing conversion tables. Tests found that a quartzite rock sample had poor quality based on a rebound number equivalent to 41MPa of compressive strength, while a concrete sample had a good quality layer with a rebound number of 43MPa.
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The document discusses testing conducted on hardened concrete cylinders drilled from a dam in India to study their stress-strain behavior and determine elastic parameters. 10 concrete cylinder samples were tested for properties like unit weight, water absorption, ultrasonic pulse velocity, modulus of elasticity, Poisson's ratio, and crushing strength. The stress-strain curves of 2 samples tested under controlled strain conditions showed increased strain at failure compared to conventional testing. The results are presented in a table and figures showing typical stress-strain behaviors.
Examination of Tensile Test Specimens Produced in Three-Dimensional Printer: ...
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In this study, the effect of different parameters on tensile test specimens produced by joint manufacturing with open source code and equipment using PLA type filament was investigated experimentally. Tensile specimens were designed and manufactured according to ASTM IV type tensile test standards. The test design was based on the L9 orthogonal array of the Taguchi Method and experiments was designed according to this plan. According to the results, Parameters of layer thickness and filling scan range parameters were found to provide significant improvement in the tensile strength increase
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This method helps in eliminating the need of laboratory analysis of rock for UCS, Point Load Index & density determination.Compression test verification_for_a_wood
Experiment NO:6 describes a compression test performed on an anisotropic wooden material to determine its compressive strength when force is applied both parallel and perpendicular to its fibers. When force was applied perpendicular to the fibers, the wooden block failed at a compressive strength of 4.7712x107 N/m2. When applied parallel to the fibers, the failure strength was lower at 1.204x107 N/m2. Detailed load-deformation data is provided in tables showing that the material can withstand over 10 times more load when compressed parallel rather than perpendicular to its fibers, as the fibers act like columns parallel to the load.
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ENGINEERING SYSTEM DYNAMICS-TAKE HOME ASSIGNMENT 2018
1. Read Chapter 4 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 4.1 to 4.12 in Matlab.
2. Read Chapter 7 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 7.1 to 7.11 in Matlab.
3. Read Chapter 9 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 9.1 to 9.6 in Matlab.
4. Read Chapter 11 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 11.1 to 11.7 in Matlab.
5. Read Chapter 2 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problem 2.18 (page 63).
6. Read Chapter 3 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problem 3.13 (pp 98 - 100).
7. Read Chapter 4 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problem 4.20 (page 146).
8. Read Chapter 5 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problems 5.15 (page 198), 5.21 (pp 199 - 200) and 5.27 (pp 201 – 202).
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In this study, the effects of carbon black amount on fracture and wear behaviors of AA6061-carbon black metal matrix composites produced by stir casting route were investigated. Wear tests were performed in a pin on type wear apparatus under different loads of 10, 20, 30 N with different sliding speeds of 2, 3 and 4 m/s, at three different sliding distances of 500, 750 and 1000 m. The design of experiments was carried out as per Taguchi technique. Wear rate function was determined in terms of volume fraction, normal load, sliding speed and sliding distance. It was found that there was a good agreement between the theoretical and the experimental value of wear rate. Maximum sliding wear of 68.72% was attributed sliding distance. Sliding wear resistance increases by 42.56% for AA6061/30%CB metal matrix composites as compared to the matrix alloy AA6061
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This document summarizes research on Glubam-concrete composite beams (BCC). Key points include:
1) Various connector types between the Glubam beam and concrete slab were tested, including steel mesh, screws, and notches. Four connector types were found suitable for BCC beams.
2) Short-term bending tests on BCC beams showed acceptable mechanical properties and efficiency compared to theoretical fully composite and non-composite beams. Failure modes depended on connector type.
3) Long-term tests on connectors and beams showed deflections fluctuated with environment but would not exceed service limits in 50 years. Predicted deflections matched experimental data.
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This document summarizes an analysis of the flexural behavior of confined and unconfined rectangular concrete beams. Three beam samples were tested: one with internal confinement using stirrups, one with external confinement using mesh wrapping, and one without confinement. Testing found that the externally confined beam had the highest load carrying capacity and withstood the greatest strains before failure. The internally confined beam performed better than the unconfined beam but not as well as the externally confined beam. In conclusion, external confinement was found to be the most effective at improving a beam's ductility and strength.
Lab report engineering materials lab - tensile test
This is my Lab Report of Tensile Test when I was conducting engineering material lab in Sampoerna University. Feel free to download for a reference.
I know it is not a good report, but I hope this share might help you to find something you need.
Thank you.
1599 methods for bend test
This document provides the procedure for conducting a bend test on metallic materials. It specifies the test equipment, test pieces, and testing methods. The bend test involves bending a test piece to a specified angle or achieving parallelism of the legs. It can be done using supports and a mandrel, a V-block and mandrel, or a clamp. The test piece dimensions depend on the material thickness and width. The test is generally done at room temperature and the bent piece is examined to evaluate the material's ability to undergo plastic deformation during bending.
behavior of reterofitted steel structures using cost effective retrofitting t...
This document summarizes research on retrofitting techniques for steel structures. It focuses on comparing the fatigue performance of a 120-year-old riveted steel bridge girder to a new equivalent welded girder. Finite element models are created to analyze stresses in the girders when uncracked, cracked, and retrofitted. Retrofitting involves adding plates with bolts to the bottom flange near the mid-span where cracking is most critical. Results show retrofitting normalizes the stress distribution and eliminates the effect of cracking, extending the design life of the old structure in a cost-effective way compared to replacement.
Lec 2 compression test
This document summarizes a lecture on compression testing. It discusses how compression tests are used to determine material properties like compressive strength and modulus of elasticity. The test involves placing a sample in a universal testing machine and applying a compressive load until failure. Common applications include the aerospace, automotive, and construction industries. While easier than tension tests, compression tests can be impacted by friction, eccentric loading, and buckling of the sample. The document outlines best practices for sample geometry and preparation to minimize these issues and get accurate results.
Tensile testing experiment
Tensile testing is used to determine the strength and ductility of materials. A specimen is placed in grips and pulled apart under increasing tensile force while measuring elongation. The resulting stress-strain curve provides properties like yield strength, tensile strength, and Young's modulus. Tensile tests are important for engineering design and quality control by ensuring materials can withstand expected loads and comparing new materials. Common applications include testing aircraft components, bolts, and other loaded structures.
Shear in Reinforced Concrete Slabs under Concentrated Loads close to Supports
The document summarizes research on shear capacity of reinforced concrete slabs under concentrated loads close to supports. It presents results from 156 experiments on 38 slabs which showed slabs have a higher shear capacity than beams due to transverse load redistribution. A Modified Bond Model was developed that better predicted experimental results compared to Eurocode. The research proposed code extensions, including a reduction factor for loads near supports, and applications to evaluating existing bridges which found an 18% reduction in loads.
Flexural strengthofveneeringceramicsforzirconia
The document summarizes a study that measured and compared the flexural strength of 10 veneering ceramics for zirconia frameworks and 3 veneering ceramics for metal-ceramic restorations. Three types of flexural strength tests were used: three-point flexure, four-point flexure, and biaxial flexure. For the zirconia ceramics, three-point flexure strengths were similar without differences, four-point flexure identified 5 strength groups, and biaxial flexure found 3 groups. One metal-ceramic ceramic had significantly higher strengths than all others. Four-point flexure showed the greatest discrimination between materials. In general,
Stop criteria for proof load tests verified with field and laboratory testing...
As the existing bridge stock is aging, improved assessment methods such as proof load testing become increasingly important. Proof load testing involves large loads, and as such the risk for the structure and personnel can be significant. To capture the structural response, extensive measurements are applied to proof load tests. Stop criteria, based on the measured quantities, are used to identify when further loading in a proof load test is not permitted. For proof load testing of buildings, stop criteria are available in existing codes. For bridges, recently stop criteria based on laboratory tests on beams reinforced with plain bars have been proposed. Subsequently, improved stop criteria were developed based on theoretical considerations for bending moment and shear. The stop criteria from the codes and the proposed stop criteria are compared to the results from field testing to collapse on the Ruytenschildt Bridge, and to the results from laboratory tests on beams sawn from the Ruytenschildt Bridge. This comparison shows that only a small change to the stop criteria derived from laboratory testing is necessary. The experimental evidence strengthens the recommendation for using the proposed stop criteria in proof load tests on bridges for bending moment, whereas further testing to confirm the stop criteria for shear is necessary.
4 Keys To Stone Selection
Fitness for Purpose is fundamental to the successful use of stone, but how do we evaluate a stone to ensure its suitability for a particular use or location? In this article we will discuss four basic keys to assist in the selection and specification of the right stone for the job. The keys are relevant to all stone users and specifiers, and they provide a useful starting point for choosing the right stone.
The four keys are:
Stain Resistance
Strength
Resistance to Abrasion
Durability
How To Ensure Stone Quality
Dimension stone is unique - no other material can be supplied in such a wide range of colours, textures and finishes. Stone owes its characteristics and appearance to the forces of nature and this age-old material can now be produced as wafer thin sheets or sculpted into a myriad of abstract shapes. The modern use of dimension stone has tested its tolerance – sometimes regrettably, to the point of failure. To keep its rightful place in our modern built environment, stone needs to be subjected to the same stringent quality control practices as man-made products such as steel girders or glass panels.
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Tensile test research and accurate data for academics and professional engineers. Engineers use tensile tests to solve most fracture problems.
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The document discusses testing conducted on hardened concrete cylinders drilled from a dam in India to study their stress-strain behavior and determine elastic parameters. 10 concrete cylinder samples were tested for properties like unit weight, water absorption, ultrasonic pulse velocity, modulus of elasticity, Poisson's ratio, and crushing strength. The stress-strain curves of 2 samples tested under controlled strain conditions showed increased strain at failure compared to conventional testing. The results are presented in a table and figures showing typical stress-strain behaviors.
Examination of Tensile Test Specimens Produced in Three-Dimensional Printer: ...
Examination of Tensile Test Specimens Produced in Three-Dimensional Printer: ...Crimsonpublishers-Mechanicalengineering
Examination of Tensile Test Specimens Produced in Three-Dimensional Printer by Fuat Kartal* in Crimson Publishers: Applied mechanical engineering
In this study, the effect of different parameters on tensile test specimens produced by joint manufacturing with open source code and equipment using PLA type filament was investigated experimentally. Tensile specimens were designed and manufactured according to ASTM IV type tensile test standards. The test design was based on the L9 orthogonal array of the Taguchi Method and experiments was designed according to this plan. According to the results, Parameters of layer thickness and filling scan range parameters were found to provide significant improvement in the tensile strength increase
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An innovative & easy way of establishing a relationship ship between Schmidt's Hammer Rebound value & Uniaxial Compressive Strength, Point Load Index & Density of rocks to obtain the value of UCS on site.
This method helps in eliminating the need of laboratory analysis of rock for UCS, Point Load Index & density determination.Compression test verification_for_a_wood
Experiment NO:6 describes a compression test performed on an anisotropic wooden material to determine its compressive strength when force is applied both parallel and perpendicular to its fibers. When force was applied perpendicular to the fibers, the wooden block failed at a compressive strength of 4.7712x107 N/m2. When applied parallel to the fibers, the failure strength was lower at 1.204x107 N/m2. Detailed load-deformation data is provided in tables showing that the material can withstand over 10 times more load when compressed parallel rather than perpendicular to its fibers, as the fibers act like columns parallel to the load.
Hardeninig of steel (Jominy test)-CoET- udsm
The document describes a Jominy end-quench test experiment to measure the hardenability of two steel samples. Steel samples A and C were heated to the austenite temperature and quenched with water at one end. Hardness measurements using the Rockwell C scale were taken at intervals along the samples. Sample A showed little variation in hardness, while hardness decreased with distance from the quenched end for sample C. A graph of hardness versus distance revealed that sample A has higher hardenability, retaining hardness further from the quenched end. The hardenability indices at 50HRC were determined to be 2mm, 5mm, and 6.5mm from the graph.
Universal testing machines
The document discusses a presentation on a universal testing machine. It describes how the machine is used to apply tensile, compressive, and shear forces to test materials and measure their properties. It explains that the machine uses load cells, crossheads, and columns to grip specimens and apply and measure forces. The document outlines the working principle of the machine and procedures for tensile and compression tests.
EXPERIMENTAL STUDIES ON THIN STEEL PLAIN AND SLOTTED CHANNEL SECTTONS
This project explains the flexural strength behavior of the thin walled steel channel section by the eccentrically loading (shear center).
ENGINEERING SYSTEM DYNAMICS-TAKE HOME ASSIGNMENT 2018
1. Read Chapter 4 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 4.1 to 4.12 in Matlab.
2. Read Chapter 7 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 7.1 to 7.11 in Matlab.
3. Read Chapter 9 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 9.1 to 9.6 in Matlab.
4. Read Chapter 11 – System Dynamics for Mechanical Engineers by Matthew Davies and Tony L. Schmitz and implement Examples 11.1 to 11.7 in Matlab.
5. Read Chapter 2 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problem 2.18 (page 63).
6. Read Chapter 3 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problem 3.13 (pp 98 - 100).
7. Read Chapter 4 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problem 4.20 (page 146).
8. Read Chapter 5 - System Dynamics for Engineering Students: Concepts and Applications by Nicolae Lobontiu and attempt problems 5.15 (page 198), 5.21 (pp 199 - 200) and 5.27 (pp 201 – 202).
SLIDING WEAR OF AA6061/CARBON BLACK METAL MATRIX COMPOSITES
In this study, the effects of carbon black amount on fracture and wear behaviors of AA6061-carbon black metal matrix composites produced by stir casting route were investigated. Wear tests were performed in a pin on type wear apparatus under different loads of 10, 20, 30 N with different sliding speeds of 2, 3 and 4 m/s, at three different sliding distances of 500, 750 and 1000 m. The design of experiments was carried out as per Taguchi technique. Wear rate function was determined in terms of volume fraction, normal load, sliding speed and sliding distance. It was found that there was a good agreement between the theoretical and the experimental value of wear rate. Maximum sliding wear of 68.72% was attributed sliding distance. Sliding wear resistance increases by 42.56% for AA6061/30%CB metal matrix composites as compared to the matrix alloy AA6061
Bo Shan_Glubam and Concrete composite beams
This document summarizes research on Glubam-concrete composite beams (BCC). Key points include:
1) Various connector types between the Glubam beam and concrete slab were tested, including steel mesh, screws, and notches. Four connector types were found suitable for BCC beams.
2) Short-term bending tests on BCC beams showed acceptable mechanical properties and efficiency compared to theoretical fully composite and non-composite beams. Failure modes depended on connector type.
3) Long-term tests on connectors and beams showed deflections fluctuated with environment but would not exceed service limits in 50 years. Predicted deflections matched experimental data.
4) A new UHPC-steel tube
IRJET - Analysis and Model for Flexural Behaviour of Confined Rectangular...
This document summarizes an analysis of the flexural behavior of confined and unconfined rectangular concrete beams. Three beam samples were tested: one with internal confinement using stirrups, one with external confinement using mesh wrapping, and one without confinement. Testing found that the externally confined beam had the highest load carrying capacity and withstood the greatest strains before failure. The internally confined beam performed better than the unconfined beam but not as well as the externally confined beam. In conclusion, external confinement was found to be the most effective at improving a beam's ductility and strength.
Lab report engineering materials lab - tensile test
This is my Lab Report of Tensile Test when I was conducting engineering material lab in Sampoerna University. Feel free to download for a reference.
I know it is not a good report, but I hope this share might help you to find something you need.
Thank you.
1599 methods for bend test
This document provides the procedure for conducting a bend test on metallic materials. It specifies the test equipment, test pieces, and testing methods. The bend test involves bending a test piece to a specified angle or achieving parallelism of the legs. It can be done using supports and a mandrel, a V-block and mandrel, or a clamp. The test piece dimensions depend on the material thickness and width. The test is generally done at room temperature and the bent piece is examined to evaluate the material's ability to undergo plastic deformation during bending.
behavior of reterofitted steel structures using cost effective retrofitting t...
This document summarizes research on retrofitting techniques for steel structures. It focuses on comparing the fatigue performance of a 120-year-old riveted steel bridge girder to a new equivalent welded girder. Finite element models are created to analyze stresses in the girders when uncracked, cracked, and retrofitted. Retrofitting involves adding plates with bolts to the bottom flange near the mid-span where cracking is most critical. Results show retrofitting normalizes the stress distribution and eliminates the effect of cracking, extending the design life of the old structure in a cost-effective way compared to replacement.
Lec 2 compression test
This document summarizes a lecture on compression testing. It discusses how compression tests are used to determine material properties like compressive strength and modulus of elasticity. The test involves placing a sample in a universal testing machine and applying a compressive load until failure. Common applications include the aerospace, automotive, and construction industries. While easier than tension tests, compression tests can be impacted by friction, eccentric loading, and buckling of the sample. The document outlines best practices for sample geometry and preparation to minimize these issues and get accurate results.
Tensile testing experiment
Tensile testing is used to determine the strength and ductility of materials. A specimen is placed in grips and pulled apart under increasing tensile force while measuring elongation. The resulting stress-strain curve provides properties like yield strength, tensile strength, and Young's modulus. Tensile tests are important for engineering design and quality control by ensuring materials can withstand expected loads and comparing new materials. Common applications include testing aircraft components, bolts, and other loaded structures.
Shear in Reinforced Concrete Slabs under Concentrated Loads close to Supports
The document summarizes research on shear capacity of reinforced concrete slabs under concentrated loads close to supports. It presents results from 156 experiments on 38 slabs which showed slabs have a higher shear capacity than beams due to transverse load redistribution. A Modified Bond Model was developed that better predicted experimental results compared to Eurocode. The research proposed code extensions, including a reduction factor for loads near supports, and applications to evaluating existing bridges which found an 18% reduction in loads.
Flexural strengthofveneeringceramicsforzirconia
The document summarizes a study that measured and compared the flexural strength of 10 veneering ceramics for zirconia frameworks and 3 veneering ceramics for metal-ceramic restorations. Three types of flexural strength tests were used: three-point flexure, four-point flexure, and biaxial flexure. For the zirconia ceramics, three-point flexure strengths were similar without differences, four-point flexure identified 5 strength groups, and biaxial flexure found 3 groups. One metal-ceramic ceramic had significantly higher strengths than all others. Four-point flexure showed the greatest discrimination between materials. In general,
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As the existing bridge stock is aging, improved assessment methods such as proof load testing become increasingly important. Proof load testing involves large loads, and as such the risk for the structure and personnel can be significant. To capture the structural response, extensive measurements are applied to proof load tests. Stop criteria, based on the measured quantities, are used to identify when further loading in a proof load test is not permitted. For proof load testing of buildings, stop criteria are available in existing codes. For bridges, recently stop criteria based on laboratory tests on beams reinforced with plain bars have been proposed. Subsequently, improved stop criteria were developed based on theoretical considerations for bending moment and shear. The stop criteria from the codes and the proposed stop criteria are compared to the results from field testing to collapse on the Ruytenschildt Bridge, and to the results from laboratory tests on beams sawn from the Ruytenschildt Bridge. This comparison shows that only a small change to the stop criteria derived from laboratory testing is necessary. The experimental evidence strengthens the recommendation for using the proposed stop criteria in proof load tests on bridges for bending moment, whereas further testing to confirm the stop criteria for shear is necessary.
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Shear in Reinforced Concrete Slabs under Concentrated Loads close to Supports
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Similar to pagina_5-6
4 Keys To Stone Selection
Fitness for Purpose is fundamental to the successful use of stone, but how do we evaluate a stone to ensure its suitability for a particular use or location? In this article we will discuss four basic keys to assist in the selection and specification of the right stone for the job. The keys are relevant to all stone users and specifiers, and they provide a useful starting point for choosing the right stone.
The four keys are:
Stain Resistance
Strength
Resistance to Abrasion
Durability
How To Ensure Stone Quality
Dimension stone is unique - no other material can be supplied in such a wide range of colours, textures and finishes. Stone owes its characteristics and appearance to the forces of nature and this age-old material can now be produced as wafer thin sheets or sculpted into a myriad of abstract shapes. The modern use of dimension stone has tested its tolerance – sometimes regrettably, to the point of failure. To keep its rightful place in our modern built environment, stone needs to be subjected to the same stringent quality control practices as man-made products such as steel girders or glass panels.
Concrete aggregates 2
Concrete aggregates make up 70-75% of concrete by volume and influence its properties like strength, durability, and economy. Aggregates are classified based on source, petrological characteristics, unit weight, and size. Their shape, surface texture, grading, and mineral composition affect workability and bonding. Aggregates provide mass to resist loads, act as a filler, and reduce volume changes during curing. Proper sampling and testing ensures aggregates meet specifications for use in concrete.
Poster_BTP
This document summarizes factors that influence the durability of concrete, specifically related to chloride attack. It discusses the mechanisms of fluid and ion flow through concrete, including capillary suction, diffusion, migration, and permeation. Key parameters for studying chloride penetration are identified as surface chloride concentration, apparent diffusion coefficient, chloride threshold, and chloride penetration profile. Standard tests for evaluating chloride penetration and their testing periods are also outlined. The corrosion process of steel reinforcement in concrete is described as an electrochemical reaction. A corrosion model defines the stages of initiation, propagation, and acceleration of corrosion. The cracking-corrosion-cracking feedback model represents how factors influence concrete durability over time.
Mst bar technical data
This document provides information on engineered composite rebar made of glass fiber reinforced polymer (GFRP) for sustainable infrastructures. It lists various approvals the rebar has received and provides technical data sheets specifying the mechanical and physical properties of different bar sizes. The rebar offers advantages over steel including zero corrosion, high strength, light weight, long lifespan, and compatibility with electromagnetic fields. It is suitable for applications where corrosion resistance is important such as bridges, marine structures, tunnels, and industrial facilities.
04 stone testing_viii
This document provides an overview of stone testing procedures. It discusses how various tests evaluate the suitability of stone for different applications by measuring its strength, density, absorption rate, wear resistance, and slip resistance. It describes common tests conducted according to ASTM standards and highlights additional analyses like petrographic examination and lithogeochemistry that can provide useful information about stone behavior over time. The document emphasizes that stone is a natural material that varies and current test results should be used to evaluate specific stone samples.
Brtc test rate 2015 2016-22.11.15
This document provides a list of testing rates for various construction materials at the Bangladesh University of Engineering and Technology's Department of Civil Engineering Bureau of Research, Testing and Consultation. Some key points:
- Testing rates are provided for aggregates, cement, concrete, destructive and non-destructive concrete tests, calibration equipment, concrete mix designs, and various steel/metal items.
- Rates include VAT, university overhead charges, and laboratory development/maintenance fees and are effective from July 2015.
- Contact information is provided for inquiries. The department reserves the right to change rates without notice.
- Notes specify additional costs for items like field visits, transportation, accommodations, and sample preparation.
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EXPERIMENTAL STUDY ON ANCHORAGE BOND IN HIGH STRENGTH REINFORCED CONCRETE BEAMS
This paper discuses experimentally the effect of steel bar diameter and embedment length on
the bond stresses, bond stress versus slip relation, failure pattern and load versus deflection
response of high strength reinforced concrete beams with dimensions (100 mm width x200 mm
height x1100 length). Four beams specimens were provided with three embedment lengths (80
mm), (100 mm) and (120 mm) in addition to two different bar diameters (10mm) and (16mm). The
test results concluded that the bond stresses and the relative displacement decrease with increasing
the embedment length and bar diameter.
STUDY ON BOND MECHANISM OF PSWC BARS WITH CONCRETE
PSWC- Plain surface with wave-type configuration, a rebar for durable concrete construction at zero cost addition and much more. The yield strength & the bond strength of HYSD bars > plain round mild steel straight bars. The durability issues related to the use of HYSD bars in RCC & problems of early distress.
Early corrosion due to the provision of surface protrusions in HYSD bars for achieving the higher bond strength.
Alternative solution : A new type of reinforcing steel bar (named as PSWC-bar) with normal plain round surface and deformed axis is proposed.
Construction Materials Engineering and Testing
This document provides an overview of materials testing services for soil, aggregate, concrete, and masonry. It describes common laboratory and field tests for evaluating the properties and quality of construction materials, including tests for soil particle size and compaction, concrete slump and strength, and masonry compressive strength. The document emphasizes that materials testing should be performed by properly trained personnel according to standardized test methods and that test results should be reported in a timely manner.
Similar to pagina_5-6 (10)
EXPERIMENTAL STUDY ON ANCHORAGE BOND IN HIGH STRENGTH REINFORCED CONCRETE BEAMS
EXPERIMENTAL STUDY ON ANCHORAGE BOND IN HIGH STRENGTH REINFORCED CONCRETE BEAMS
STUDY ON BOND MECHANISM OF PSWC BARS WITH CONCRETE
STUDY ON BOND MECHANISM OF PSWC BARS WITH CONCRETE
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- 1. MINYA ASTM C97-96 (Standard Test Methods For Absorption and Bulk Specific Gravity of Dimensional Stone) ASTM C99-89 (Standard Test Methods For Modulus of Rupture of Dimensional Stone) ASTM C170-90 (Standard Test Methods For Compressive Strength of Dimensional Stone) ASTM C241-90 (Standard Test Methods For Abrasion Resistance of Stone Subjected to foot Traffic) ASTM C880-98 (Standard Test Methods For Flexural Strength of Dimensional Stone) Test Results Perpendicular Standard Test Average Test Average ASTM C97 ABSORPTION(3) .29% BULK SPECIFIC GRAVITY(3) 2 618 ASTM C99 Modulus of Rupture DRY (3) 2 000 PSI ASTM C170 Compressive Strength DRY (5) 13 300 PSI ASTM C241 Compressive Strength DRY (3) 26.4 Ha ASTM C880 Flexural Strength DRY (5) 1 600 PSI ASTM C97-96 (Standard Test Methods For Absorption and Bulk Specific Gravity of Dimensional Stone) ASTM C99-89 (Standard Test Methods For Modulus of Rupture of Dimensional Stone) ASTM C170-90 (Standard Test Methods For Compressive Strength of Dimensional Stone) ASTM C241-90 (Standard Test Methods For Abrasion Resistance of Stone Subjected to foot Traffic) ASTM C880-98 (Standard Test Methods For Flexural Strength of Dimensional Stone) Test Results Perpendicular Standard Test Average Test Average ASTM C97 ABSORPTION(3) .87% BULK SPECIFIC GRAVITY(3) 2 590 ASTM C99 Modulus of Rupture DRY (3) 2 000 PSI ASTM C170 Compressive Strength DRY (5) 21 300 PSI ASTM C241 Compressive Strength DRY (3) 35.7 Ha ASTM C880 Flexural Strength DRY (5) 1 800 PSI ZAFARANA Marble 5 SRABGANDA ASTM C97-96 (Standard Test Methods For Absorption and Bulk Specific Gravity of Dimensional Stone) ASTM C99-89 (Standard Test Methods For Modulus of Rupture of Dimensional Stone) ASTM C170-90 (Standard Test Methods For Compressive Strength of Dimensional Stone) ASTM C241-90 (Standard Test Methods For Abrasion Resistance of Stone Subjected to foot Traffic) ASTM C880-98 (Standard Test Methods For Flexural Strength of Dimensional Stone) Test Results Perpendicular Standard Test Average Test Average ASTM C97 ABSORPTION(3) 1.31% BULK SPECIFIC GRAVITY(3) 2 567 ASTM C99 Modulus of Rupture DRY (3) 1 600 PSI ASTM C170 Compressive Strength DRY (5) 15 600 PSI ASTM C241 Compressive Strength DRY (3) 26.5 Ha ASTM C880 Flexural Strength DRY (5) 1 400 PSI GREY ASTM C97-96 (Standard Test Methods For Absorption and Bulk Specific Gravity of Dimensional Stone) ASTM C99-89 (Standard Test Methods For Modulus of Rupture of Dimensional Stone) ASTM C170-90 (Standard Test Methods For Compressive Strength of Dimensional Stone) ASTM C241-90 (Standard Test Methods For Abrasion Resistance of Stone Subjected to foot Traffic) ASTM C880-98 (Standard Test Methods For Flexural Strength of Dimensional Stone) Test Results Perpendicular Standard Test Average Test Average ASTM C97 ABSORPTION(3) .26% BULK SPECIFIC GRAVITY(3) 2 662 ASTM C99 Modulus of Rupture DRY (3) 2 000 PSI ASTM C170 Compressive Strength DRY (5) 20 200 PSI ASTM C241 Compressive Strength DRY (3) 33.9 Ha ASTM C880 Flexural Strength DRY (5) 1 600 PSI Marble 6