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Successful planning, forming, and installation of expansion joints requires coordinated design and construction decisions before concrete forming and placement. This coordination includes: 1) establishing construction tolerances for formwork and concrete placement; 2) reviewing the manufacturer’s printed installation instructions (MPII) for the specified expansion joint; 3) estimating slab movements that will occur after forming and placement but before joint installation; 4) defining the installation timing; and 5) joint protection and repair. Effective coordination of these factors is essential to achieving successful expansion joint construction.
Available in the following language(s): Spanish
Scott M. Anderson, FACI, began his term as the 103rd President of ACI at the conclusion of the ACI Concrete Convention—Spring 2026, held in Rosemont/Chicago, IL, USA. Anderson is Vice President and General Manager of Keystone Structural Concrete in Houston, TX, USA, where he has overseen elevated concrete construction since 1999. He has worked in the construction industry for more than 35 years, with a focus on concrete structures and complex specialty projects. This article highlights his career in the concrete industry and his journey with ACI.
Available in the following language(s): Spanish
To ensure the continued success and growth of the ACI San José State University (SJSU) Student Chapter, the ACI Northern California & Western Nevada Chapter, established an endowment to benefit students participating in the ACI SJSU Student Chapter.
Available in the following language(s): Spanish
Spray-based 3D-printed concrete (3DPC) is gaining popularity due to its ability to realize complex geometries, optimize materials, and reduce labor and construction costs. Anchorages are widely used in concrete to connect structural or non-structural elements to the concrete. However, there are currently no tests that evaluate the behavior of anchorages in 3DPC. In this pilot study, steps were taken to assess the behavior and performance of anchorages in 3DPC.
Available in the following language(s): Spanish
In high-rise construction, crane-dependent climbing systems rely on crane lifts to reposition formwork and platforms, often competing with other operations. Self-climbing systems address this challenge by taking the crane out of the equation, allowing crews to climb on their own schedule and maintain a consistent rhythm from floor to floor. Recent advancements in system design and control are expanding where and how self-climbing systems can be applied. This article explains the benefits of self-climbing systems, highlights advancements, and discusses Doka’s application of the technology.
Available in the following language(s): Spanish