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Tom Klemens

Tom Klemens's Posts

Top-Down Approach Braces Half of Subgrade Construction Top-Down Approach Braces Half of Subgrade Construction

A unique approach to forming and excavation enabled working from the top down to support the excavation, then working back up to ground level. Read more

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Challenging Formwork for Ohio River Bridge Challenging Formwork for Ohio River Bridge

The new East End Crossing bridge features two convex diamond-shaped reinforced concrete towers that rise 300 feet above the water to support a 1,200-foot main span. Contractor Walsh-Vinci used PERI technology to meet the numerous forming challenges. Read more

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Move It or Park It Move It or Park It

How to choose among your concrete pumping options. Read more

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We Love Pavement! We Love Pavement!

We Americans love our pavement. We drive 3 trillion miles a year on more than 4 million miles of U.S. roadways. Clearly we're a nation on the go and we expect our roads, streets, and highways to be available and ready whenever, and wherever, we are. Read more

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Understanding F-Numbers Understanding F-Numbers

First used on a large-scale commercial project in 1983, the F-number system for measuring floor flatness and levelness has been perhaps the most significant factor in enabling the construction of flatter and more level concrete floors. Read more

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