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Prestressed beam without load. Prestressed beam with load. Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. [1][2]: 3–5 [3] It was patented by Eugène Freyssinet in 1928.
The Common Core State Standards Initiative, also known as simply Common Core, was an American, multi-state educational initiative begun in 2010 with the goal of increasing consistency across state standards, or what K–12 students throughout the United States should know in English language arts and mathematics at the conclusion of each school grade.
The standards-based National Education Goals (Goals 2000) were set by the U.S. Congress in the 1990s. Many of these goals were based on the principles of outcomes-based education, and not all of the goals were attained by the year 2000 as was intended. The movement resulted in the No Child Left Behind Act (NCLB) of 2001, which required that ...
This new set of academic standards, “Florida’s B.E.S.T. Standards” stand for the “Benchmarks For Excellent Student Thinking”. In order to “replace Common Core”, ordered by Gov. Ron DeSantis, “The State of Florida’s B.E.S.T. Standards” will be implemented in phases during the years of 2021-2023. These standards will provide ...
Logo of Eurocode 2 An example of a concrete structure. In the Eurocode series of European standards (EN) related to construction, Eurocode 2: Design of concrete structures (abbreviated EN 1992 or, informally, EC 2) specifies technical rules for the design of concrete, reinforced concrete and prestressed concrete structures, using the limit state design philosophy.
Prestressed concrete cylinder pipe (PCCP) is a common variety of large-diameter concrete pressure pipe used for transporting water and wastewater. PCCP is typical manufactured according to the American Water Works Association (AWWA) standard C304. [1] PCCP is a composite structure that is composed of a concrete core, high-tensile prestressed ...
Learning standards. Learning standards (also called academic standards, content standards and curricula) are elements of declarative, procedural, schematic, and strategic knowledge that, as a body, define the specific content of an educational program. Standards are usually composed of statements that express what a student knows, can do, or is ...
A hollow core slab, also known as a voided slab, hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi-story apartment buildings. The slab has been especially popular in countries where the emphasis of home construction has been on precast concrete, including ...