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Friday, April 17, 2020 | History

2 edition of Evaluation of concrete properties from sonic tests found in the catalog.

Evaluation of concrete properties from sonic tests

E. A. Whitehurst

Evaluation of concrete properties from sonic tests

  • 254 Want to read
  • 22 Currently reading

Published by American Concrete Institute in Detroit .
Written in English

    Subjects:
  • Concrete -- Testing.,
  • Ultrasonic testing.

  • Edition Notes

    Bibliography: p. 85-90.

    Statement[by] E. A. Whitehurst.
    Classifications
    LC ClassificationsTA440 .W42
    The Physical Object
    Paginationix, 94 p.
    Number of Pages94
    ID Numbers
    Open LibraryOL5954186M
    LC Control Number65027929
    OCLC/WorldCa4299834

    probe, Schmidt hammer and direct tensile test can be applied to a survey procedure for detecting weak spots. The results imply that core compressive strength is not the only useable indicator of concrete quality and also that the several properties of concrete which determine its quality are largely in­ dependent. To reduce energy consumption and protect the environment, a type of hollow shale block with 29 rows of holes was designed and produced. This paper investigated the thermal properties of hollow shale blocks and walls. First, the guarding heat-box method was used to obtain the heat transfer coefficient of the hollow shale block walls. The experimental heat transfer coefficient is Cited by: 2.


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Evaluation of concrete properties from sonic tests by E. A. Whitehurst Download PDF EPUB FB2

Evaluation of concrete properties from sonic tests (American Concrete Institute monograph) [Whitehurst, E. A] on *FREE* shipping on qualifying offers. Evaluation of concrete properties from sonic tests (American Concrete Institute monograph)Author: E.

A Whitehurst. Evaluation Of Concrete Properties From Sonic Tests, American Concrete Institute Monograph Series No. 2, Second Printing, Hardcover – January 1, by E. Whitehurst (Author), ACI Committee (Foreword)Author: E. Whitehurst.

Additional Physical Format: Online version: Whitehurst, E.A. (Eldridge Augustus). Evaluation of concrete properties from sonic tests. Detroit, American Concrete Institute, []. Get this from a library. Evaluation of concrete properties from sonic tests.

[E A Whitehurst; American Concrete Institute.]. Evaluation of concrete properties from sonic tests. Detroit: American Concrete Institute. MLA Citation. Whitehurst, Eldridge Augustus. Evaluation of concrete properties from sonic tests / urst American Concrete Institute Detroit Australian/Harvard Citation.

Whitehurst, Eldridge Augustus. Method overview of Crosshole Sonic Logging (CSL). By sending ultrasonic pulses through concrete from one probe to another (probes located in parallel tubes), the CSL procedure inspects the drilled shaft structural integrity of the concrete between the tubes, and extent and location of defects, if any.

BothFile Size: KB. during the in-place test is converted to an equivalent compressive strength by means of a previously established correlation relationship. As the insert is pulled out, a conical shaped fragment of concrete is extracted from the concrete mass.

The idealized shape of the extracted conic frustum is shown in Fig. Try the new Google Books. Check out the new look and enjoy easier access to your favorite features.

Petrographic Evaluation of Concrete Aggregates. AlkaliSilica Reactions in Concrete. Significance of Tests and Properties of Concrete and Concrete-making Materials ASTM STP D/5(6). The present paper deals with the utilization of the ultrasonic method to evaluate the properties of high performance concrete.

The compressive strength and the elasticity module of the concrete are evaluated. A comparative study was performed with the results obtained in the test with the ultrasonic method and in the test with strain gages. Guide to Evaluation of Strength Test Results of Concrete Reported by ACI Committee ACI R Statistical procedures provide valuable tools for evaluating the results of concrete strength tests.

Information derived from such procedures is valuable in defining design criteria, specificat ions, and other parameters needed forFile Size: KB. A bend test is an inexpensive qualitative test that is used to determine the flexibility and soundness of materials.

Bend tests deform a test steel material midway causing a bend to form without a fracture. Consequently, you specify the material’s resistance level. A bend test’s goal is to load the sample material into a specific shape.

For Concrete Paving Projects Only, send copies of all Agency and Contractor tests results including control charts. These include but are not limited to: a. Field Core Reports (Form ) b. Concrete Test Beam Data (Form ) c. Ride. order to obtain mechanical properties of walls using sonic tests, [].

Nevertheless, the results still do not relate with the mechanical properties of masonries in a robust manner as opposed to concrete elements where sonic and ultrasonic Tests. METHOD OF TEST FOR EVALUATION OF CHEMICAL ADMIXTURES FOR CONCRETE 1. SCOPE This method covers physical requirements and qualification tests for chemical admixtures.

The admixture shall be evaluated by comparing the properties of a test concrete containing the the test concrete shall be within % of that of the reference concrete.

This Thursday the 31/5/18 we will be going live at pm to discuss Sonic testing of concrete. Join us to learn what sonic testing can find, how it compliments GPR scanning and the best tools.

Much of the literature refers to high pressure permeability tests at pressures up to Non-Destructive Testing of Concrete 0"7 N/mm2 ( lb/in2). Such pressures will break down capillary structure that would never have been affected by the worst of by: 1. Flat jack NDT testing method for masonry structures is used to determine engineering properties such as compressive strength and in-situ stress of older structures for structural evaluation.

A flat jack testing equipment consists of flexible steel envelope which is very thin and fits within the masonry mortar joint. This study investigates the use of tree-based machine learning methods in concrete non-destructive tests (NDT) evaluation.

The study encompassed different phases. In addition, an indication of concrete quality can be obtained from compressive strength tests; however, cores that contain cracks should not be used to determine concrete strength. Ultrasonic equipment should be operated by a trained person, and the results should be evaluated cautiously by an experienced person, because moisture, reinforcing steel, and embedded.

FINAL REPORT EVALUATION OF CONCRETE CHARACTERISTICS FOR RIGID PAVEMENTS D. Lane Senior Research Scientist INTRODUCTION For rigid pavements, the Virginia Department of Transportation's (VDOT) Road and Bridge Specifications (VDOT ) specified that the concrete have a day compressive strength of MPa (3, psi) (20 File Size: KB.

Properties of Concrete and Concrete-Making Materials”.and downloads from the Internet. Nevertheless, the authors hope that this paper could lead to a fuller understanding of the significance of the tests and what the test results are really telling us.

INTRODUCTION 12 Testing of Concrete both in the plastic and hardened statesFile Size: 1MB. Introduction. Non-destructive testing (NDT) methods clearly have a role in the evaluation and testing of civil engineering structures but all too often they are used to provide discrete information on specific problems rather than as an integral part of the overall survey by: Sonic wood testing apparatus and method WOA1 (fr) * Mitsui Engineering & Shipbuilding Co., Ltd.

Procede du type a impact et appareil d'inspection de structures GBD0 (en) * Bio Kil Chemicals Ltd: Testing timbers USA (en) * Cited by:   Whitehurst E A Evaluation of Concrete Properties from Sonic Tests (Farmington Hills, MI: American Concrete Institute) 94 American Concrete Institute Monograph No.

2 p [25] Jones R Measurement of the thickness of concrete pavements by dynamic methods: a survey of the difficulties Mag. by: UNESCO – EOLSS SAMPLE CHAPTERS MATERIALS SCIENCE AND ENGINEERING – Vol. III – Non-Destructive Testing and Evaluation of Metals - G.A. Georgiou ©Encyclopedia of Life Support Systems (EOLSS) difficult to detect by conventional methods.

The defects and NDT methods discussed are summarized in tables for eachFile Size: KB. Basic Principles of Ultrasonic Testing.

Ultrasonic Testing (UT) uses high frequency sound energy to conduct examinations and make measurements. Ultrasonic inspection can be used for flaw detection/evaluation, dimensional measurements, material characterization, and more.

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. How you prepare for a test can be the difference between a low score and a high score. Use quality study materials: text books, flashcards, study guides, practice tests, etc.

How should you take tests. These proven test techniques will increase your score and lower your stress!. Interest in testing of hardened concrete in-situ has increased considerably since the s, and significant advances have been made in techniques, equipment, and methods of application since publication of the first edition of this book in This has largely been a result of the growing number of concrete structures.

BS EN Testing Concrete in Struc-tures - Non-destructive Testing - Determination of Rebound Number. The Standard Rebound Hammer provides a sim-ple, easy and inexpensive method to estimate con-crete strength properties.

However, the results of the test on concrete are affected by various factors such. ACI R "Nondestructive Test Methods for Evaluation of Concrete in Structures". ASTM C "Test Method for Measurement P-Wave Speed and the Thickness of Concrete Plates Using the Impact-Echo Method".

Mary J. Sansalone and William B. Streett,"IMPACT-ECHO, Nondestructive Evaluation of Concrete and Masonry". Search the world's most comprehensive index of full-text books. My library. Hardened Concrete: physical, chemical and engineering properties, tensile and compressive strengths, other strength, deformation, elasticity, shrinkage, creep destructive and non-destructive tests.

Mix design: influencing factors, various methods of mix proportioning and design of. apparatus and test procedure of ultrasonic pulse velocity test method. In addition, influence of test conditions and some general guidance on the interpretation of test results are also given.

NOTE - In view of the limitations of each method of non-destructive testing of concrete File Size: 1MB. While concrete blocks vary by type, their primary structural property is compressive strength. The American Concrete Institute's (ACI) Publication"Building Code Requirements for Structural Concrete," contains the structural property standards for concrete and 7-day and day testing methods used to insure that the concrete blocks manufactured meet or exceed.

The section of the concrete to be subjected to the test is prepared by either inserting a plastic tube into the fresh concrete or drilling into the hardened concrete shortly before the test.

The parameter measured by the break-off method is the force that is required to literally break the resulting concrete cylinder off the concrete structure.

Pile integrity testing using low-strain tests such as the TDR (Transient Dynamic Response) method, is a rapid way of assessing the continuity and integrity of concrete piled foundations.

The test measures: pile length, or depth to anomalies; pile head stiffness; pile shaft mobility, which is dependent on pile section and concrete properties.

The UPV technique is generally used in accordance with the Standard Test Method for Pulse Velocity Through Concrete (ASTM C) and the American Concrete. This video (Animation, Animated Video) explains the concept Ultrasonic Pulse Velocity Test for Concrete.

(Civil Engineering Animated Videos, Civil Engineerin. Impact-echo is based on the use of transient stress waves generated by elastic impact.

A diagram of the method is shown in Figure 2. A short-duration mechanical impact, produced by tapping a small steel sphere against a concrete or masonry surface, is used to generate low-frequency stress waves that propagate into the structure and are reflected by flaws and/or external.

The American Concrete Institute. Founded in and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete .ultrasonic tomography device (MIRA) for use in evaluating concrete pavements.

Ultrasonic testing uses high frequency (greater t Hz) sound waves to characterize the properties of materials or detect their defects. Sound waves are generated by transducers, travel through the material, and are received at the surface.I want to know how to conduct soil and concrete field and lab tests such as cube test,sand replacement and standard penetration test,etc.

Reply Link Quote. Momin sk Ap at am. please send IS code for pavement material testing. Reply Link Quote. priyanta neogi. Novem at am. i want to start a civil m.