In geology, cementations and concretions occur when a process called lithification takes place, which means that loose particles of rock are bonded together by a mineral such as calcium carbonate (calcite) or iron oxide (limonite). Man has recognized...
Concrete is a construction material that consists of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel limestone or granite, plus a fine...
Concrete, rivers a risky mix By RESLER Saturday, August 5, 2000 Removing the concrete channels through which the Menomonee and Kinnickinnic rivers flow might help prevent drownings, such as the three that occurred last week. Still, taking that step is no...
No retrospective would be complete without remembering the contributions of leading figures who have helped shape the industry. In this issue recognizing today's top contractors (see page 27), it is fitting to salute some of the pioneers from CONCRETE CONSTRUCTION'S early days. Roger...
Several tons of freshly poured concrete collapsed from the roof of a high-rise construction site on Friday, injuring 16 workers on the floor below, some seriously, authorities said.The concrete collapsed from the roof of the 300-foot tall skyscraper onto the 24th floor because it was...
Carl Turnbow Jr. started college as a computer science major, before switching to something more solid. Like hundreds of other students at Middle Tennessee State University, Turnbow is now studying for a bachelor's degree in concrete management. The industry-funded program has become the fastest-growing major...
Discusses the building material, concrete. Describes its evolution as well as the wide range of applications that concrete offers, including its great strength, affordability, durability, and versatility.
