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Consumer Reports (CR), formerly Consumers Union (CU), is an American nonprofit consumer organization dedicated to independent product testing, investigative journalism, consumer-oriented research, public education, and consumer advocacy.
Eco-Cement is a brand-name for a type of cement which incorporates reactive magnesia (sometimes called caustic calcined magnesia or magnesium oxide, MgO), another hydraulic cement such as Portland cement, and optionally pozzolans and industrial by-products, to reduce the environmental impact relative to conventional cement.
The types and amounts of cement produced in 2015 were: Portland cement 80.4 million tons; Masonry cement 2.4 million tons; Other hydraulic cement 0.6 million tons; Cement production is predominantly portland cement, which is mostly used in concrete. Cement for concrete is an essential material for construction, and demand is a function of ...
A rubber plug used to separate the cement slurry from other fluids, reducing contamination and maintaining predictable slurry performance. Two types of cementing plug are typically used on a cementing operation. The bottom plug is launched ahead of the cement slurry to minimize contamination by fluids inside the casing prior to cementing.
By far the most common type of cement is hydraulic cement, which hardens by hydration of the clinker minerals when water is added. Hydraulic cements (such as Portland cement) are made of a mixture of silicates and oxides, the four main mineral phases of the clinker, abbreviated in the cement chemist notation, being: C 3 S: alite (3CaO·SiO 2);
When it comes to product reviews, Consumer Reports is the gold standard. Gathering data from 300,000 vehicles from 2000-2023, CR’s team of engineers, journalists, researchers and scientists has ...
Vicat's cement is an artificial hydraulic lime, and is considered the "principal forerunner" [3] of portland cement. Plaque in Leeds, England commemorating Joseph Aspdin The name portland cement is recorded in a directory published in 1823 being associated with a William Lockwood and possibly others. [ 6 ]
Ripoff Report is a private for-profit website founded by Ed Magedson. [1] The Ripoff Report has been online since December 1998 and is operated by Xcentric Ventures, LLC which is based in Tempe, Arizona. [2]