03 00 00 Concrete

Category Archives: 03 00 00 Concrete

 

What does a “greener” manufacturer in the construction industry look like?

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The terms “environmentally friendly,” “sustainable,” and “green” are thrown out a lot, but what do they really mean? Sustainability should include not only the products a manufacturer produces, but also the manner in which they do so. What does a sustainable manufacturer do to attain the “green” label and why should specifiers care?

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Adjacent Precast Box Beam Bridges

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For years, adjacent prestressed concrete box-beam bridges have been employed for short and medium spans—two-thirds of all state Department of Transportations (DOTs) use them. While they are popular due to ease of construction and low profile, cracks in the longitudinal grouted joints between adjacent beams have often been observed. This can lead to leakage through the joint, accelerating corrosion of reinforcement and diminishing load transfer.

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What’s Wrong With My Precast Concrete Garage?

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Precast double-tee construction has become a dominant method for building parking garages in North America. The double-tee beam deck system of this construction type provides a finished wearing surface, supports vehicle loading, and forms an integral part of the lateral force-resisting system. However, maintenance and repair of deck connections is a common problem with this type of construction. The most common cause is perhaps the least considered.

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