Ultrasound in the production and inspection of concrete.

by Anatolii Konstantinovich Tretyakov

Publisher: Consultants Bureau in New York

Written in English
Published: Pages: 64 Downloads: 191
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Edition Notes

StatementA.K. Tret yakov and A.M. Filonidov.
ContributionsFilonidov, A. M.
The Physical Object
Number of Pages64
ID Numbers
Open LibraryOL13953135M

Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse-waves with center frequencies ranging from MHz, and occasionally up to 50 MHz, are transmitted into materials to detect internal flaws or to characterize materials. Plant and Truck Certification Program. nksal: The inspection of the production facility should be documented on the Plant Certification Checklist. in learning more about the plant certification program and the general industry standards governing ready mixed concrete production facilities, this document is a useful reference. Guide for Concrete Plant Inspection and Testing of Ready-Mixed Concrete ACI R This guide is intended for use in establishing basic duties and reports required of inspection personnel. It can be used for all types and sizes of projects but should be supplemented with additional inspection requirements when the complexity of the project File Size: 68KB. A transducer with piezoelectric crystals is used to produce the ultrasound beam. This is a material in which mechanical energy is converted into electrical energy and vice versa. This means that transmitting an electric voltage through the material will cause it to vibrate, producing a sound : Sarah Abdulla.

i s s n 1 0 1 8 – 5 5 1 8 T r a i n i n g C o u r s e s e r i e s 45 non-Destructive Testing: sample Questions for Conduct of examinations at Levels 1 and 2 V i e n n a, 2 0 1 0. Abstract. Based upon the correlation between interior flaw and parameters such as ultrasonic velocity, the first ultrasonic amplitude and the received ultrasonic frequency, a microcomputer testing system has been developed, which comprises of three elementary parts, namely, data sampling, signal processing and flaw : Lu Jiecheng, Zhuang Zhenquan, Dai Yingxia. The CPU is the brain of the ultrasound machine. The CPU is basically a computer that contains the microprocessor, memory, amplifiers and power supplies for the microprocessor and transducer CPU sends electrical currents to the transducer probe to emit sound waves, and also receives the electrical pulses from the probes that were created from the returning echoes.   Large concrete structures pose various challenges mainly due to the wide range of aggregates, fragments compacted together, in the material. 'On a roll'—non-destructive testing (NDT using ultrasound.

Nondestructive Testing (NDT) consists of a variety of non-invasive inspection techniques used to evaluate material properties, components, or entire process units. The techniques can also be utilized to detect, characterize, or measure the presence of damage mechanisms (e.g. corrosion or cracks).NDT is also commonly referred to as nondestructive examination (NDE), nondestructive evaluation. September 1, CONCRETE MAN UAL CONCRETE MATERIALS AND TESTING GENERAL REQUIREMENTS The Specifications contain requirements for all concrete materials. Inspect all materials used in the construction of concrete work at their source, on the job, or both. The Engineers andFile Size: 2MB.

Ultrasound in the production and inspection of concrete. by Anatolii Konstantinovich Tretyakov Download PDF EPUB FB2

Ultrasound in the Production and Inspection of Concrete Softcover reprint of the original 1st ed. EditionCited by: 1. *immediately available upon purchase as print book shipments may be delayed due to the COVID crisis. ebook access is temporary and does not include ownership of the ebook.

Only valid for books with an ebook : Springer US. Additional Physical Format: Online version: Ultrasound in the production and inspection of concrete. New York, Consultants Bureau, (OCoLC) Ultrasonic Methods of Non-Destructive Testing covers the basic principles and practices of ultrasonic testing, starting with the basic theory of vibration and propagation, design and properties and probes, and then proceeding to the principles and practice of the various ultrasonic techniques for different types of components and structures, both metallic and non-metallic.5/5(2).

Concrete is a difficult material to inspect when the ultrasonic wavelength is comparable to the size of the aggregate particles (stones) in the concrete.

The wavelength is the limit of the smallest object that can be resolved. Inspection engineers want to find objects almost as small as aggregate particles.

When the pulse generated is transmitted into the concrete from the transducer using a liquid coupling material such as grease or cellulose paste, it undergoes multiple reflections at the boundaries of the different material phases within the concrete. A complex system of stress waves develops.

the inspection of concrete structures. Training Course Series Nos. 3 and 10 cover the inspection of concrete using the relevant NDT method; however, coverage is brief and does not present the whole range of NDT methods used for the NDT of concrete.

Concrete has become a very common construction material in most IAEA Member States and problems. The three non-destructive testing methods: the indirect ultrasonic pulse velocity, impact-echo and ground-penetrating radar, implemented in the scanner UIR, were used to study the concrete slabs.

Inspection Manual for Precast Concrete Pipe and Structures. May Table of Contents. Concrete Testing d. Compressive Strength Testing 5.

Post-Pour Product Inspection a. Curing b. Repairs and Finishing PRECAST CONCRETE PIPE AND Size: 2MB. ACI Manual of Concrete Inspection Reported by ACI Committee ACI R (ACI SP-2(07)) PREFACE This manual is intended to guide, assist, and instruct concrete inspectors and others engaged in concrete construction and testing, including field engineers, construction superintendents, supervisors, laboratory and field technicians, and Size: KB.

Download Non Destructive Testing Of Materials By Dr. Jayakumar, Dr. Elangovan – We are pleased to bring out our fully revised new edition of “Non Destructive Testing Of Materials” book for Engineering and Technology studies.

This book covers the latest syllabus prescribed by Anna University, Chennai for Mechanical, Mechatronics, Aeronautical, Automobile students of all engineering. [Show full abstract] measurement, ultrasonic pulse velocity test was proposed as a promising initial inspection method for fire damaged concrete structure.

Cube specimens were prepared and. Ultrasonic testing is often performed on steel and other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution.

It is used in many industries including steel and aluminium construction, metallurgy, manufacturing, aerospace, automotive and other transportation sectors. THE ULTRASONIC TESTING OF CONCRETE by R.

JONES* The main object of ultrasonic testing of concrete is to provide a non-destructive method of assessing the quality of structural concrete from measurements of pulse velocity.

In this article experimental techniques for the measurement of pulse velocity are by: 5. The test instrument consists of a means of producing and introducing a wave pulse into the concrete and a means of sensing the arrival of the pulse and accurately measuring the time taken by the pulse to travel through the concrete.

Portable ultrasonic testing equipment are available. Nondestructive Testing Handbook, Third Edition: Volume 7, Ultrasonic Testing (UT) (eBook) A collaborative effort of Ultrasonic Testing experts.

Editorial emphasis on practicality with information useful to Level II and Level III inspectors. Applications arranged according to industry: aerospace, chemical-petroleum, electric power.

Ultrasonic Testing of Concrete. Ultrasonic pulse velocity test consists of measuring travel time, T of ultrasonic pulse of 50 to 54 kHz, produced by an electro-acoustical transducer, held in contact with one surface of the concrete member under test and receiving the same by a similar transducer in contact with the surface at the other end.

The most common application of ultrasonic testing in civil engineering is to determine the velocity of sound in concrete, which is related to concrete quality. This thesis addresses some of the limitations of current commercial apparatus used for determining ultrasonic pulse velocity in concrete.

To apply pulse-echo testing to concrete inspection, it was necessary to develop low-frequency transducers with sufficiently short impulse responses. With the introduction of such transducers and instruments in the beginning of the s, recording of single (A-scan) and multiple (B/C-scan) measurements was made by: inspection method.

Tools include fiberscopes, borescopes, magnifying glasses and mirrors. Robotic crawlers permit observation in hazardous or tight areas, such as air ducts, reactors, pipelines. Portable video inspection unit with zoom allows inspection of large tanks and vessels, railroad tank cars, sewer lines.

Visual Inspection. ASTM's nondestructive testing standards provide guides for the appropriate methods and techniques used to detect and evaluate flaws in materials and objects without destroying the specimen at hand.

Such tests include radiographic, ultrasonic, electromagnetic (eddy-current), X. Inspection is the keynote of quality construction and calls for technical knowledge, tact and careful judgment to verify production of quality work. Careless inspection can lead to poor work and disputes.

It is generally through firm, intelligent inspection based on thorough knowledge of. Ultrasonic Imaging Finds Voids, Cracks and Bonding Defects As material costs climb, acoustic micro-imaging (AMI) is increasingly being used for non-destructive inspection and quality control of microelectronic components and assemblies, adhesive and welded bonds, solid part walls, and other applications where bond integrity, cracking, or voids.

A collaborative effort of Ultrasonic Testing (UT) experts. Editorial emphasis on practicality with information useful to Level II and Level III inspectors. Applications arranged according to industry: aerospace,chemical-petroleum, electric power, infrastructure, metals.

Chapters on applications in material characterization and advanced. Keywords: Ultrasonic, standards, metal, concrete, forgings, NDT. ABSTRACT.

It is known that ultrasonic testing of forgings by international and national standards are regulated, but in spite of that, especially, ultrasonic testing of heavy forgings presents very complex part of the ultrasonic testing.

Methods had been developed to use acoustic and electromagnetic waves, temperature pattern of the surface, vibrational behaviour etc. for inspection and for quality control in the production phase. A display of recent developments in the field of ultrasound examples for.

Ultrasonic inspection can be used for flaw detection/evaluation, dimensional measurements, material characterization, and more. To illustrate the general inspection principle, a typical pulse/echo inspection configuration as illustrated below will be used.

A typical UT inspection system consists of several functional units, such as the pulser. Predictive maintenance is the complement of preventive maintenance. Through the utilization of various nondestructive testing and measuring techniques, predictive maintenance determines equipment status before a breakdown occurs.

With predictive devices currently available, it is incumbent upon. Butterworths, - Ultrasonic testing - pages. 0 medium metal method moved normally observed obtained occur oscilloscope trace path pipes placed plate position possible probe production propagation properties pulse quartz range receiving reflected region relation relationship resonance sample screen shape About Google Books.

As mentioned previously, visual inspection and leak testing are powerful and easy NDT methods. In addition, modern equipment and materials allow for these other, more accurate and rapid testing.

Keywords: Ultrasound, quality control, concrete, mortar, non-destructive testing. Introduction. An advanced process technology in the area of concrete quality control needs proper surveillance by reliable and - as much as possible - objective measurements.Non-destructive testing (NDT) is a testing and analysis technique used by industry to evaluate the properties of a material, component, structure or system for characteristic differences or welding defects and discontinuities without causing damage to the original part.

NDT also known as non-destructive examination (NDE), non-destructive inspection (NDI) and non-destructive evaluation (NDE). Title: High-Frequency Ultrasound Technique for Testing Concrete Author(s): Sandor Popovics, Nihat M.

Bilgutay, Meric Caraoguz, and Tayfun Akgul Publication: Materials Journal Volume: 97 Issue: 1 Appears on pages(s): Keywords: concretes; mortars (materials); nondestructive tests; tests; thickness; ultrasonic tests.

Date: 1/1/ Abstract: In this paper, the split spectrum processing .