An Evaluation of Equipment and Procedures for Tensile Bond Testing of Concrete Repairs PDF Download
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Author: Alexander M. Vaysburd
Publisher:
ISBN:
Category : Binders (Materials)
Languages : en
Pages : 88
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Book Description
If the durability of repaired concrete structures is a primary objective of any repair project, then every effort should be made to ensure adequate bonding between the repair and the existing concrete substrate. A total of 257 partial-depth cores in 77 experimental repairs were tested in Florida, Illinois, and Arizona in order to evaluate the effect of material properties and environmental conditions on the bond between repair and concrete substrate. Three pull-off testing devices were used to determine the bond strengths for each of the experimental repairs. In addition, the testing devices themselves were evaluated by analyzing the magnitude and relative precision of the pull-off strengths, modes of failure, and ease of use in an effort to identify a reliable and practical device for determining in situ tensile bond. The optimum depth of core drilling into the existing substrate was determined by comparing theoretical finite element analysis of failure zone stress distribution with measured test results.
Author: Alexander M. Vaysburd
Publisher:
ISBN:
Category : Binders (Materials)
Languages : en
Pages : 88
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Book Description
If the durability of repaired concrete structures is a primary objective of any repair project, then every effort should be made to ensure adequate bonding between the repair and the existing concrete substrate. A total of 257 partial-depth cores in 77 experimental repairs were tested in Florida, Illinois, and Arizona in order to evaluate the effect of material properties and environmental conditions on the bond between repair and concrete substrate. Three pull-off testing devices were used to determine the bond strengths for each of the experimental repairs. In addition, the testing devices themselves were evaluated by analyzing the magnitude and relative precision of the pull-off strengths, modes of failure, and ease of use in an effort to identify a reliable and practical device for determining in situ tensile bond. The optimum depth of core drilling into the existing substrate was determined by comparing theoretical finite element analysis of failure zone stress distribution with measured test results.
Author: Edward G. Nawy
Publisher: CRC Press
ISBN: 1420007653
Category : Technology & Engineering
Languages : en
Pages : 1586
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Book Description
The Concrete Construction Engineering Handbook, Second Edition provides in depth coverage of concrete construction engineering and technology. It features state-of-the-art discussions on what design engineers and constructors need to know about concrete, focusing on - The latest advances in engineered concrete materials Reinforced concrete construction Specialized construction techniques Design recommendations for high performance With the newly revised edition of this essential handbook, designers, constructors, educators, and field personnel will learn how to produce the best and most durably engineered constructed facilities.
Author: Benoît Bissonnette
Publisher: Springer Science & Business Media
ISBN: 9400712391
Category : Technology & Engineering
Languages : en
Pages : 197
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Book Description
Among different approaches that can be considered for concrete rehabilitation, bonded overlays are often the most economical alternative. The primary purpose of overlays is to extend the life of the candidate structures, either by restoring the quality and integrity of the surface and/or the re-establishing or improving the load-carrying capacity. Nevertheless, the durability of bonded overlay systems still draws concerns in the technical community because of bond sustainability problems encountered in a number of cases. At this time, there is still no accepted design approach or methodology that can warrant the practitioner a successful outcome of the repair. This State-of-Art report summarizes the findings with respect to all aspects involved in the overlaying process.
Author:
Publisher: Jeffrey Frank Jones
ISBN:
Category :
Languages : en
Pages : 8380
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Book Description
Over 8,300 pages .... Just a SAMPLE of the CONTENTS: NONDESTRUCTIVE INSPECTION METHODS. Published by the Departments of the Army, Navy and Air Force on 1 March 2000 - 771 pages and June 2005 - 762 pages; Metallic Materials and Elements for Aerospace Vehicle Structures 1,733 pages Designing and Developing Maintainable Products and Systems - Revision A 719 pages Sampling Procedures and Tables for Inspection by Attributes 75 pages Nondestructive Testing Acceptance Criteria 88 pages Environmental Stress Screening Process for Electronic Equipment 49 pages Handbook for Reliability Test Methods, Plans, and Environments for Engineering, Development, Qualification, and Production - Revision A 411 pages Human Engineering - Revision F 219 pages Sampling Procedures and Tables for Life and Reliability Testing (Based on Exponential Distribution) 77 pages Test Method Standard: Electronic and Electrical Component Parts 191 pages Reliability Testing for Engineering Development, Qualification and Production - Revision D 47 pages Electroexplosive Subsystem Safety Requirements and Test Methods for Space Systems (150 pages, 8.64 MB) Reliability Prediction of Electronic Equipment- Notice F 205 pages Reliability Program for Systems and Equipment Development and Production - Revision B 88 pages Electronic Discharge Control Handbook for Protection of Electrical and Electronic Parts, Assemblies and Equipment (Excluding Electrically Initiated Explosive Devices) - Revision B 171 pages Electrical Grounding for Aircraft Safety 290 pages Fuze and Fuze Components, Environmental and Performance Tests for - Revision C 295 pages Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment - Revision E 253 pages Maintainability Verification/Demonstration/Evaluation - Revision A 64 pages Failure Rate Sampling Plans and Procedures - Revision C 41 pages Maintainability Prediction 176 pages Definition of Terms for Reliability and Maintainability - Revision C 18 pages Semiconductor Devices 730 pages Reliability Modeling and Prediction - Revision B 85 pages Established Reliability and High Reliability Qualified Products List (QPL) Systems For Electrical, Electronic, and Fiber Optic Parts Specifications - Revision F 17 pages Environmental Test Methods and Engineering Guidelines 416 pages) Test Methods for Electrical Connectors - Revision A 129 pages Environmental Engineering Considerations and Laboratory Tests - Revision F 539 pages System Safety Program Requirements 117 pages Test Method Standard Microcircuits - Revision E 705 pages Test Method Standard Microcircuits - Revision F 708 pages Procedures for Performing a Failure Mode Effects and Criticality Analysis - Revision A 54 pages
Author: Ravindra K. Dhir
Publisher: Thomas Telford Publishing
ISBN: 9780727734051
Category : Technology & Engineering
Languages : en
Pages : 536
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Book Description
- Preface - Introduction - Organising Committee - Scientific and Technical Committee - Collaborating Institutions - Sponsoring Organisations with Exhibition - Exhibiting Organisations - Supporting Institutions - Opening Paper - Getting it Right - From Testing Through Diagnosis to Lasting Repair THEME 1 DEGRADATION OF CONCRETE STRUCTURES Keynote Paper - On the Role of Moisture in Degradation of Concrete Structures - Condition Survey of Romanian Prestressed Concrete Bridges - The Use of Air Entrainment in Bridges and Highway Structures of the USA - Influence of Design and Construction Details on Localized Degradation of Concrete Structures - Diagnosis and Repair of a Cement Concrete Structure: A Case Study of a Residential Building - Degradation of Concrete in Structures - Water Treatment Infrastructure - Models for Environmental Actions on Reinforced Concrete Structures - Influence of Desulfurised Combustion Gases on Durability of Cooling Towers - Studying the Bond Between Repair Materials and Concrete Substrate - Mathematical Modelling of Strike Penetration Processes into Concrete and Sandy Barriers THEME 2 DEVELOPMENTS IN DIAGNOSTIC TECHNIQUES Keynote Paper - Cover Concrete Evaluation: The Contribution of GRP Techniques Experimental Studies and Field Measurements - Cost Effective Testing of Concrete Structures - Defeating Alkali-Aggregate Reaction Worldwide - Temperature Variations in Concrete Subjected to Cyclic Compressive Loads: Consequences for Diagnostic Applications - A Study About the Rehabilitation Method of Electrochemical Chloride Extraction in Brazil - Loading Tests - Practical Experiences - Possibilities of Optical Fibre Sensors to Monitor Strength in Concrete Structures - Durability of Marine and Coastal Structures - The High Quality Cover and Monitoring Approach - New Suggestions to Measure the Corrosion Level of Reinforcement Using Infrared Thermographic Technology - Fracture Energy of Ultra High Performance Concrete Beams Using Infrared Thermographic Technology - Development of an Automatic Crack Recognition System for Concrete Structures - A Non-Destructive Test to Measure Concrete Permeability - Ultrasonic Inspection of Concrete Structure - New Steps Towards "Transparent" Concrete - On Bonding Repairing Steel Fibre Reinforced Concrete to Hardened Concrete - Condition Assessment of RC Structures by Electro Chemical Method (Linear Polarization) and Accelerated Carbonation Experiments THEME 3: REPAIR MATERIALS AND METHODS Keynote Paper - New Materials. Concepts and Quality Control Systems for Strengthening Concrete Construction - Repair of Foundation for Large Compressor - On the Use of Non-Adequate Primers to the Reinforcing Steel in Concrete Localised Repairs - Evaluating External CFRP Strips and Internal MMFX Steel Shear Bars for Shear Strengthening of Precast Concrete Channel Beams - Evaluation of Corrosion Inhibitors for Remediation of St Mary's Multi-Storey Car Park, Colchester - Improving Efficiency in the Galvanic Cathodic Protection of Concrete Structures - Re-alkalisation of Carbonated Concrete by Alkalline Solutions Absorption and Diffusion Mechanisms - External CFRP Tendons for Bridge Strengthening in Austria - Anchorage of Additional External Prestressing Tendons - Determination of Ductility and Deformability Undeces for FRP Strengthened RC Slabs - Use of FRP Materials for Strengthening Concrete Structures - Effect of Temperature on the Durability of Systems of Strengthening of Concrete Structures - Axial Compressive Strength of Reinforced Concrete Columns Wrapped with Fibre Reinforced Polymers (FRP) - Efficiency of Hybrid FRP Sheets in Strengthening Concrete Beams - Embedded Fibre Bragg Grating Sensors for Monitoring the Health of Concrete Structures - Performances of Bonded An
Author: ASTM International
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 884
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Book Description
Author:
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 816
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Book Description
Author: G. I. Crawford
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 72
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Book Description
In recent years, significant developments have occurred in concrete testing and in establishing test procedures for nondestructive testing (NDT). With NDT equipment, inspectors can now determine concrete strength, pavement thickness, degree of consolidation, and curing temperatures quickly and accurately. The purpose of this guide is to present general information on several pieces of commercially available NDT equipment. The majority of the equipment covered is used for measuring the early age, in-situ, strength of the concrete at ages less than 28 days.
Author: National Institute of Standards and Technology (U.S.)
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 464
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Book Description
Author: James E. McDonald
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 12
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Book Description
