Besix has announced concrete work on the 1115.49-foot Dubai Uptown Tower has reached its highest structural point of 1079.4 feet. Crews have completed 90% of the facade and are closing in on a structural top-out.
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Engineers and contractors have access to four ACI University online training courses for various concrete testing, inspection, and specialist ACI Certification programs. Access these online courses in place of face-to-face trainings.
Ground-penetrating radar is a useful tool for detecting embedded structures in concrete and for estimating wrap thickness, but the data it yields can be difficult to understand, writes Ibtisam Abbasi. Researchers have found ground penetrating radar can detect objects placed in concrete at shallow depths, but they recommend performing scans with different antennae configurations to detect objects at deeper levels.
Gomaco has replaced diesel power with a 48-volt battery pack in its CC-1200 Curb Cadet to create its electric curb and gutter slipform paver. The CC-1200e made its debut at World of Concrete 2022 in Las Vegas but continues to undergo real-world testing of its functions, many of which are now electronic rather than hydraulic.
A review of literature on fiber-reinforced polymers, including fibers made of aramid, basalt, carbon and glass, found that the materials still faces issues at high temperatures. "Although FRP-reinforced/strengthened concrete members provide many benefits, their vulnerability to elevated temperatures remains a challenging concern," researchers wrote.
Cookstown Cement, based in Northern Ireland, has acquired a Holcim cement plant for approximately $76 million. Miljan Gutovic, leader of the Europe, Middle East, and Africa region at Holcim, said the divestment allows Holcim to "focus on consolidating our leadership in core markets to become the global leader in innovative and sustainable building solutions."
US commercial and multifamily construction starts rebounded last year from a fitful 2020 with a 16% jump in value nationwide and an 18% gain in the top 20 metropolitan areas, according to Dodge Construction Network. However, commercial and multifamily starts in the top 20 metro areas were down 5% from their 2019 value.