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Paul D.Q. Campbell

Paul D.Q. Campbell's Posts

Wallboard "Plus"

Inventors discover an interior application for AAC. Read more

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Prestressing Without Guessing

A new device re-tensions hardened concrete structural elements. Read more

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A New Bonding Method

Patent is designed to eliminate the separation of floor coverings from concrete. Read more

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Breaking Even Without Breaking Equipment

Reusable tilt-up forming strips handle bond breaking. Read more

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