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Qty. Model, Description. 1, Choose One: Concrete compression machine, , lb (1, kN) cap., iH Digital Indicator, platens for testing 6″ x 12″ specimens. ASTM C78/C78M: Standard Test Method for Flexural Strength of Concrete ( Using Simple Beam with Third-Point Loading). determined by standard test methods ASTM C (third-point loading) or ASTM C (center-point loading). The specimen size and type of loading does.

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Results are calculated and reported as the modulus of rupture. Give our test engineers a call today for help configuring the best test machine and accessories according to your standard. By continuing to use our site, you accept our cookie policy. Partner Software automatically calculates the modulus of rupture based upon the maximum applied load and average dimensional values of the test specimen. Please confirm that you agree with our privacy and cookies policy to submit this form.

We are confident that we have what you are looking for. By means of our testing expertise and modular product design, we will help find the solution that is right for you. Email addresses can only contain letters, numbers and the following special characters: Email addresses must contain the symbol. The modulus of rupture is dependent on speciment size, moisture, curing, and preparation.

Software for Series Systems. Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more! Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of v78 standard. Link to Active This link will always route to the current Active version of the standard.

Flexural device according to ASTM C78 – FORM+TEST

For the same specimen size, the strength determined will vary if there are differences in specimen preparation, curing procedure, moisture condition at time of testing, and whether the beam was molded or sawed to size. Work Item s – proposed revisions of this standard.


ASTM C 78 C determines the flexural strength of concrete by the use of a simple beam with third-point loading. The desired results are that modulus of rupture is calculated and the specimen fails within the middle third of the span length in the tension area or underside of the specimen. C87 suggest reviewing the standard to fully understand the test set up, procedures, and result requirements.

ASTM C78 Flexural Bend Concrete Test Equipment

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Bluehill LE for Basic Testing.

ASTM C78 addresses the flexural testing of concrete used in the construction of slabs and pavements with a “third-point” style flexure apparatus. Force range of 5 kN to kN 1, lbf tolbf Adjustable test space The most popular choice for static tension and compression tests These dual column testers are available in both tabletop and floor standing models.

The DX is a servo-controlled system, which allows the test to perform automatically within a closed loop.

Satisfies the requirements of both ASTM C and C78 Rated to kN 22, lbf Loading span attached to a spherical seat to maintain proper alignment Includes preinstalled metric ruler to ease specimen placement. We find that operators prefer this style of system over manually controlled systems because of the more consistent control of the loading rate and the less risk of shock to the specimen. We suggest referencing the instructions found in the ASTM C78 for the loading rates, proper specimen orientation, and application of preload to assure “gap-free” contact between the specimen and fixture.


Subscribe to Instron News! We manufacture a variety of testing systems suitable for meeting this specification, including the common construction testing industry standard “compression-only” style systems.

ASTM C78 Flexural Strength of Concrete Beams – Instron

It is used primarily in testing concrete for the construction of slabs and pavements. Glossary of Materials Testing Terms.

Description Literature Contact Us ASTM C78 addresses the flexural testing of concrete used in the construction of slabs and pavements with a “third-point” style flexure apparatus.

WaveMatrix 2 satm Dynamic Testing. Concrete, Asphalt and Rock. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

We use cookies to improve your browsing experience. This standard is used in the testing of concrete in the construction of slabs and pavements. Contact Us View Accessories Catalog.

How can we help you? Universal materials testing software for static hydraulic, electromechanical and torsion testing systems – WBB. Subscribe to Our Newsletters. Combining values from the two systems may result in non-conformance with the standard. Onsite Training At Your Facility.

Historical Version s – view previous versions of standard. Load ratings up to kN 56, lbf Base lengths up to mm 48 in Various roller sizes available Available in 3-point and 4-point configurations. Have a question about conducting the test for this standard? Next Checking to see if you are a returning visitor…. We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity chambers, furnaces, baths and custom solutions for unique applications.

Specimen geometry is in the form of a beam that is 6 x 6 inches with a minimum length of 21 inches.