Standard Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens. A non-destructive sonic method. Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens. All the Controls products ASTM C standard. Enter now!.

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Therefore, it is not advisable to compare results from specimens of different sizes or shapes. To us, complete customer satisfaction means:. If you like to setup a quick demo, let us know at support madcad.

Land Use and Development. Remember me for one month. Resonant frequency can be determined by watching the voltmeter reach its highest point.

Other systems offer an oscilloscope connection. Click here to download full list of books. The original PCA design has been modified by changing to solid state circuitry and addition of a built-in cathode ray oscilloscope. No other units of measurement are included in this standard.

This test method is intended primarily for detecting significant changes in the dynamic modulus of elasticity of laboratory or field test specimens that are undergoing exposure to weathering or other types of potentially deteriorating influences. Search Advanced Search Search Tips.

Electrical power is converted by the driver into mechanical vibrations and these vibrations are imparted to the specimen under test. Qstm analysis FFT calculation for detections of multiple vibrations modes Selection of zones of interest by waveband filtering Oscilloscoop function for time domain analysis Graphic visualisation of frequency domain Technical Information: Our customer service representatives are fully trained.


Advanced Search Search Tips. The apparatus consists essentially of a driver and pickup circuit.

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Print 1 2 3 4 5 page sstarting from page current page. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. A very detailed instruction manual accompanies each sonometer. E Terminology for Nondestructive Examinations. ASTM C, C The Geotest Sonometer is one of several devices now being offered for determining changes in resonant frequency of concrete specimens subjected to alternate cycles of freezing and thawing with C Freeze-Thaw Apparatus.

Enter your personal account email address to request a password reset: The oscilloscope verifies resonance because the meter alone also reaches high points on harmonics.

Ultrasonic E-Meter MKII | Qualitest

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Enter your account email address to request a password reset: Ast, oscilloscope confirms that peak reading on meter is actual resonance and not a harmonic. Process control Number of programs 5 with controller unit B standard Grindosonic Number of Elevated segments 4 with B standard Grindosonic Optional: Click to see GrindoSonic Accessories.


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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. When resonance occurs, the actual number is digitally displayed on the frequency counter. All other units use accelerometers which require intimate contact with the test specimen. Copyright Compu-tecture, Inc. Geotest Catalog Request Catalog. The test method may also be used to monitor the development of dynamic elastic modulus with increasing maturity of test specimens.

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Metals and Alloys Ceramics and more Different computed values for the dynamic modulus of elasticity may result from widely different resonant frequencies of specimens of different sizes and shapes of the same concrete. F Standard Specification for Driven Fasteners: The difference depends, in part, on the strength level of the concrete.