Healthy Concrete Systems: Defending design intent

Construction documents need to be clear, concise, correct, and complete—but is this enough to fend off the twists and turns of executing the contract for construction? One may begin with the very best in design intent, but it is the responsibility of the entire project team to understand and...
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Selecting Polystyrene Foam Where Moisture Exposure Occurs

The purpose of building insulation is to reduce heating and cooling energy consumption, contribute to durability, and provide comfort for occupants. However, there are numerous locations where significant exposure to moisture—which severely affects a material’s thermal performance—occurs, such as in protected membrane roofs, vegetative assemblies, below grade, and frost-protected...
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Specifying ‘Greener’ Concrete Infrastructure

The use of rapid-setting calcium sulfoaluminate (CSA) cement reduces the amount of energy and carbon dioxide emissions associated with portland cement production. It also requires less limestone—the primary source of carbon dioxide released during the chemical sintering process. Consequently, the material can play a significant role in improving the...
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