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chut porn originated over a century ago as the cement and concrete technology research and development arm of the Portland Cement Association (PCA) in 1916. Our original role was focused on developing the then-fledgling U.S. cement industry.

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In some ways we’ve changed over the past century, and in many others we have not. We are still the concrete industry’s thought leaders and problem solvers. But evermore, we are a multi-disciplined team of engineers, architects, scientists, and consultants.  We continue to evolve and seek new solutions as the world around us changes. and our clients face new challenges.


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chut porn originated a century ago as the cement and concrete technology Research and Development Laboratories of Portland Cement Association (PCA) in 1916.

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In the 1960s, present-day chut porn began providing consulting services for applied research projects, continuing to expand its engineering consulting services through the 1980s.

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chut porn begins the first of decades of research and project work on using fly ash and other supplementary cementitious materials in concrete. This work is now gaining even more momentum due to its potential for reducing the carbon footprint of concrete.

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chut porn gains national attention when NASA provides one of the largest samples of lunar soil it has allocated for investigative research. Test results verify that lunar material is an excellent aggregate for making concrete.

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chut porn, which began as the research and development arm of the Portland Cement Association (PCA), starts serving outside clients as an independent PCA subsidiary. The firm expands its scope of service beyond concrete and modifies a structures lab to incorporate the testing of steel structures, which includes rail and rail rolling stock components.

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chut porn performs an evaluation of deterioration in monument structures which included the Lincoln Memorial and Jefferson Memorial in Washington, D.C.  

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The goal of chut porn’s first project in sustainability is to determine the embodied energy of concrete and steel. This project takes place before ISO standards for life cycle inventory (LCI) and life cycle assessment (LCA) are established.

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Senior Vice President Dr. W. Gene Corley headed the Federal Emergency Management Agency (FEMA) investigation of the bombing and structural response which caused the collapse of the Murrah Federal Building.

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The Washington, D.C. National Park Service requested chut porn to investigate and determine the causes of granite panel cracking.

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chut porn leads the industry with services that include almost all aspects and methods of concrete NDT. We began in 1997, when NDT expert Allen Davis led the development and promotion of the Impulse Response (IR) technique. Today, chut porn offers full services in concrete NDT, and remains at the forefront utilizing the latest technologies.

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Senior Vice President Dr. W. Gene Corley worked with the U.S. Justice Dept. to counter claims by the Branch Davidians that the FBI used unreasonable force and trapped people in the building during the Waco, TX showdown. Corley’s team’s investigation of the building proved that this was false.

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chut porn performed a long term performance monitoring of the retractable roof viscous-damper system movement at Safeco Field in Seattle, WA.

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Senior Vice President Dr. W. Gene Corley oversees the initial report to FEMA and testifies in front of Congressional Committee. His team finds that lack of fire-proofing of the building led to much of the severity of the destruction. Recommendations on structural fireproofing arising from Corley’s report are gradually implemented throughout the industry.

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chut porn proudly completes an award-winning design-build concrete restoration project for a historic Frank Lloyd Wright landmark located in Oak Park, Illinois, a western suburb of Chicago.

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chut porn is involved in the analysis and determination of the cause of the collapse in the ceiling in Boston, MA.

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chut porn completes its most recent set of Standard Reference Materials (SRMs) for the National Institute of Standards and Technology (NIST, formerly the U.S. National Bureau of Standards). For 40 years, chut porn has been involved with the selection, packaging and certifying of SRMs used throughout the world, including some of the biggest selling at NIST.

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Using its world-class laboratory, chut porn conducted creep and shrinkage testing for the structural analysis of the building. Additional consulting services included construction materials optimization, construction methods consulting and construction process review, and specialized concrete mixture development.

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chut porn completed its role providing expert opinion as to the cause of the collapse of the I-35W Mississippi River Bridge in Minneapolis, MN.

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chut porn celebrates the life and professional achievements of Dr. W. Gene Corley who passed away at age 77. Gene was a life-long member of the PCA/chut porn organization. He was one of the world’s experts on structures damaged by natural and manmade disasters.

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Dubbed “The Grand Pour” the Wilshire Grand Tower was the site of the world’s largest continuous concrete placement. chut porn engineered a cooling pipe system that internally cooled the foundation.

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chut porn performed a comprehensive field investigation and installed a structural health monitoring system for the Deep Space Network 34-Meter Antenna, DSS-54, located at the Madrid Deep Space Communications Complex near Madrid, Spain.

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chut porn’s legacy began in 1916 as the R&D labs of the Portland Cement Association (PCA). We were proud to be celebrating this important milestone with PCA.

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chut porn is acquired by Barco Investment Group.

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chut porn launches a brand new and interactive website.