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Florida Department of Transportation

Tim Ruelke, P.E., Director, Office of Materials

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Navigating Updated Masonry Unit and Prism Accreditation Policy for ASTM C140 and C1314

[Watch on YouTube.] 

In this episode of AASHTO re:source Q&A, we dive deep into a new policy that impacts masonry testing standards, aiming to clarify a critical update to ASTM C1716 from 2019. Understanding the latest updates on the dimensional requirements for compression testing machines is essential for laboratories seeking AASHTO accreditation for related test methods.

The discussion begins with the introduction of the new policy and clarifying some terminology. A masonry block or concrete masonry unit is what most people typically call a cinder block, however there many different versions out there. A prism involves constructing a miniature version of a wall using concrete masonry units, which then undergoes testing.

With the onset of the COVID-19 pandemic the Cement and Concrete Reference Laboratory (CCRL)  switched to remote inspections and were unable to verify if compression machines met the new standard requirement. With the backlog in inspections, many facilities either remained unaware of the revisions or were uncertain whether their equipment conformed to the updated standards. Hence, the introduction of the latest policy serves as a guideline to standardize practices across a variety of laboratories.

A significant point we address is the differentiation between full-size and reduced-size specimen testing. While some labs may want to justify their ability to test only reduced-size specimens, the necessity for adherence to standards remains crucial. Our experts share that accreditation will no longer favor labs that only test coupons—meaning smaller cuts of masonry units intended for quick assessments. This decision stems from a commitment to maintaining high standards and ensuring that test results accurately represent the properties of the entire unit, thereby bolstering trust in tested products.

Throughout the episode, we emphasize the importance of clarity in the accreditation directory. The new policy outlines that laboratories testing for full-size or reduced-size specimens will be distinctly identified, helping clients ensure they engage with competent testing facilities. This transparency aligns with a broader goal of continual improvement within the industry, as we highlight best practices for laboratories to follow.

Understanding the way forward, particularly the logistical changes brought about by the new policies, can help laboratories avoid misunderstandings in the accreditation process. The discussion also sheds light on how detailed compliance requirements ease misunderstandings and save costs by reducing unnecessary re-inspections. We invite you to tune in and enhance your understanding of the implications of these new policies for masonry unit and prism testing and their significance within the construction industry.

In conclusion, as we look ahead to the upcoming AASHTO re:source Technical Exchange, we encourage our listeners to stay engaged and informed. The importance of active communication and feedback across industry stakeholders cannot be overstated as we strive for higher compliance standards and understanding. Connecting with us via our podcast and actively participating in events ensures a richer discourse around these critical topics. For those testing laboratories currently grappling with compliance, financial planning for new machinery may soon become paramount, reminding us that adherence to standards not only supports quality but ultimately drives success in projects that rely on masonry work.

Important Note: Buzzsprout Cohost AI was used as a resource when creating this post.
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