The Hyatt Regency Stonebriar in Frisco, Texas won the Engineering News-Record’s (ENR) Excellence in Safety award. The 18-story hotel opened in June, includes an 800-space parking garage and the 3,000 square-foot Frisco Public Library, and is connected to the Stonebriar Centre shopping mall. According to ENR, at completion, the project had no recordable incidents and no lost-time accidents during more than 300,000 work hours.
Brasfield & Gorrie, the general contractor on the project, used concrete maturity meters to monitor strength gain during curing of structural slabs to help maintain the project budget and schedule.
Typically, cylinders and beams are required to be cast and broken for quality control and 28-day acceptance. It is common practice to cast and break additional companion samples for estimating early-age strength of in-place concrete for form removal and post-tensioning of elevated slabs. However, the strength gain of these cylinders may not reflect the strength gain of the in-place concrete. Maturity bridges the gap between what is tested for in companion samples and what is really going on with in-place concrete. When builders use maturity to evaluate the in-place strength of their concrete, they require fewer cylinder specimens for overall quality control during construction.
Maturity systems, like COMMAND Center™, can provide real-time updates of in-place temperature and age, allowing users to reliably estimate concrete strength. Verifying that concrete has reached adequate strength for proceeding in the construction process reduces the risk for premature structural failure and is essential to the safety of the final structure. In addition, real-time updates allow teams to know when their concrete has achieved target strength so they can move on quickly to the next phase of construction. There’s no need to waste valuable construction time waiting for the strength of standard test specimens to catch up to the in-place concrete.
Learn more about the Hyatt Regency Stonebriar and Excellence in Safety Award from ENR.
