Many state DOTs require contractors to provide thermal control plans for bridge elements and other mass concrete. Thermal control plans ensure that the differential between the core temperature and the […]
The goal of the American Concrete Institute (ACI) 306 Guide to Cold Weather Concreting is to give guidance so that concrete placed in cold temperatures will develop sufficient strength and […]
A recent paper in Concrete International recommends changes to the relevant ACI and ASTM specifications as well as the AIA MasterSpec to ensure that concrete cylinders are cured as specified. […]
Engineers need training in organizing the material in technical writing. In teaching engineering students how to write a report, one of the first things I talk about is how to […]
We’re pleased to welcome Brad Ahrens as a senior lab and field technician. Ahrens has over 20 years’ experience in concrete lab and field testing, quality control, and inspection. Brad […]
The American Society of Civil Engineers has hosted the National Concrete Canoe Competition since 1988. The University of Minnesota Twin Cities has participated in the event for over 30 years. […]
The Hanford Nuclear Reservation was established in Washington State in 1943 as part of the Manhattan Project and the Cold War to produce plutonium for nuclear weapons. The Manhattan Project was […]
Floor Flatness (Ff) and floor levelness (Fl) are required by ACI specifications to be measured within 72 hours of placing the slab. Concrete contractors prefer to grab Ff and Fl measurements before […]
A persistent challenge of slab-on-ground and elevated slab construction is achieving floor flatness (Ff) and floor levelness (Fl) to ensure safety, effective functionality, and aesthetics. Examples of effective functionality are […]
“We can be using the same kind of technology, the same kind of techniques, but when we use it, we get something different.” Shigeru Miyamoto Have you ever experienced a […]