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This article assesses the concrete contractor’s obligation when the specified overall F-number is not achieved. The specified overall F-number does not control the quality of the worst portions of the floor. Instead, subdividing a large slab into multiple test sections allows individual areas to be evaluated independently. If one or more test sections fail to meet the minimum local values, only those deficient areas require remediation.
Available in the following language(s): Spanish
Becoming ACI certified is an achievement that enhances personal credentials and provides value to employers. ACI currently offers 30+ globally recognized certification programs to support the concrete, masonry, and shotcrete industries. However, some individuals may struggle to pass a certification. This article outlines strategies to successfully prepare for ACI Certification testing.
Available in the following language(s): Spanish
Researchers with Iowa State University’s (ISU) Department of Civil, Construction and Environmental Engineering, Program for Sustainable Pavement Engineering and Research (PROSPER), Institute for Transportation have developed advanced techniques to automate and accelerate the construction of large-scale heated airport pavements for snow removal and runway deicing operations.
Available in the following language(s): Spanish
Launched in 2019, the American Concrete Institute (ACI) Shotcrete Inspector Certification program was established to address the growing demand for qualified, on-site shotcrete inspection personnel. Although the program has successfully certified a diverse range of industry professionals—including concrete construction inspectors, shotcrete workers, designers, and project superintendents—the United States construction industry continues to face a critical shortage of these specialized inspectors. This article describes the program and encourages concrete professionals to join the team.
Available in the following language(s): Spanish
The Cadborosaurus is a legendary sea serpent-like creature believed by many to inhabit the waters of southern Vancouver Island on the west coast of Canada. A concrete Cadborosaurus statue resides at a children’s playground in Cadboro Gyro Park at the head of Cadboro Bay in BC, Canada. The sculpture remains in good condition after six decades of seafront exposure.
Available in the following language(s): Spanish