Alec Engineering and Contracting has topped off a 304-meter-tall tower at the One Za'abeel mixed-use development in Dubai. Crews used 215,000 cubic meters of concrete for Tower A, which is linked by a skybridge to a neighboring tower.
Sika has expanded production of admixtures and has begun producing epoxy resins for concrete at its facility in Doha, Qatar, facility. "In expanding our production, we are anticipating a substantial increase in demand and volumes for our high-value adhesives and flooring solutions," said Ivo Schadler, regional manager of Europe, Middle East, and Africa for Sika.
Global Market Insights estimates the world market for roofing materials will exceed $159 billion by 2027. The concrete and clay roofing materials market will generate $36 billion in revenue by 2027, according to the firm.
Research shared during the American Concrete Institute's virtual convention shows how artificial intelligence and the data behind it are vital to development of tools to help concrete producers optimize performance. Other research shared at the convention shows how the future of concrete 3D printing depends on the ability to tailor the material's rheological properties.
Alexandre Bocquillon, deputy commissioner of the Monaco Pavilion at the Expo 2020 Dubai, said the pavilion will generate enough energy from solar panels to exceed consumption. The polygonal structure is built with 1,055 cubic meters of concrete, some of which could be repurposed for other projects.
Researchers in Oman and Saudi Arabia found that concrete made with an iron lathe waste boosted the compressive strength of the concrete by 38% as compared to concrete made with conventional aggregate. The aggregate made from the industrial waste also improved the tensile strength and the flexural strength of the concrete, according to the study.
Researchers in Pakistan, Australia and Saudi Arabia developed an empirical model to calculate the axial compressive strength of concrete columns with fiber-reinforced polymer rebars. "[T]he anticipated theoretical and FEA models are precise enough to further analyze the FRP-reinforced concrete columns," researchers wrote.