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The American Concrete Institute (ACI, formerly National Association of Cement Users or NACU) is a non-profit technical society and standards developing organization. ACI was founded in January 1905 during a convention in Indianapolis. [1] [2] The Institute's headquarters are currently located in Farmington Hills, Michigan, USA. ACI's mission is ...
Research into arching or compressive membrane action has continued over the years at Queen's University Belfast, with the work of Niblock, [26] [27] who investigated the effects of CMA in uniformly loaded laterally restrained slabs; Skates, [28] who researched CMA in cellular concrete structures; Ruddle, [29] [30] who researched arching action ...
He was also an original member of the joint ASCE/American Concrete Institute (ACI) committee that formulated provisions for prestressed concrete in the ACI Building Code. Janney was also active in the Prestressed Concrete Institute (PCI), the National Society of Professional Engineers (NSPE) and the American Society for Testing and Materials ...
The ACI Building Code Requirements put the following restrictions on amount of spiral reinforcement. ACI Code 7.10.4.2: For cast-in-place construction, size of spirals shall not be less than 3/8 in. diameter. ACI Code 7.10.4.3: Clear spacing between spirals shall not exceed 3 in., nor be less than 1in.
Wired.com reported on 13 April 2007 that a team from the University of Tehran, competing in a contest sponsored by the American Concrete Institute, demonstrated several blocks of concretes with abnormally high compressive strengths between 340 and 410 MPa (49,000 and 59,000 psi) at 28 days. [3]
Pages in category "Concrete" The following 200 pages are in this category, out of approximately 221 total. ... American Concrete Institute; Asphalt concrete; B ...
ABYC – The American Boat & Yacht Council (ABYC is an international organization, despite its name) Accellera – Accellera Organization; A4L – Access for Learning Community (formerly known as the Schools Interoperability Framework) AES – Audio Engineering Society; AHRI - Air-conditioning, Heating, and Refrigeration Institute
Mass concrete is defined by American Concrete Institute Committee 207 as "any volume of concrete with dimensions large enough to require that measures be taken to cope with the generation of heat from the hydration of cement and attendant volume change to minimize cracking."