Editing Concrete (section)

==World records==
The world record for the largest concrete pour in a single project is the [[Three Gorges Dam]] in Hubei Province, China by the Three Gorges Corporation. The amount of concrete used in the construction of the dam is estimated at 16 million cubic meters over 17 years. The previous record was 12.3 million cubic meters held by [[Itaipu Dam|Itaipu hydropower station]] in Brazil.<ref>{{cite web
 |title       = Itaipu Web-site
 |date        = 2 January 2012
 |url         = http://www.itaipu.gov.br/en/energy/concrete-pouring
 |access-date  = 2 January 2012
 |url-status     = live
 |archive-url  = https://web.archive.org/web/20120209223146/http://www.itaipu.gov.br/en/energy/concrete-pouring
 |archive-date = 9 February 2012
 |df          = dmy-all
}}
</ref><ref name="probeinternational.org">{{Cite web |last=Sources |first=Other News |date=2009-07-14 |title=China's Three Gorges Dam, by the Numbers |url=https://journal.probeinternational.org/2009/07/14/chinas-three-gorges-dam-numbers-2/ |access-date=2022-08-13 |language=en|archive-url=https://web.archive.org/web/20170329045941/https://journal.probeinternational.org/2009/07/14/chinas-three-gorges-dam-numbers-2/ |archive-date=29 March 2017 |website=Probe International}}</ref><ref>{{cite web
 |title       = Concrete Pouring of Three Gorges Project Sets World Record
 |work        = People's Daily
 |date        = 4 January 2001
 |url         = http://english.peopledaily.com.cn/200101/02/eng20010102_59432.html
 |access-date  = 24 August 2009
 |url-status     = live
 |archive-url  = https://web.archive.org/web/20100527044056/http://english.peopledaily.com.cn/200101/02/eng20010102_59432.html
 |archive-date = 27 May 2010
 |df          = dmy-all
}}
</ref>

The world record for concrete pumping was set on 7 August 2009 during the construction of the [[Parbati River (Himachal Pradesh)|Parbati]] Hydroelectric Project, near the village of Suind, [[Himachal Pradesh]], India, when the concrete mix was pumped through a vertical height of {{convert|715|m|ft|abbr=on}}.<ref>{{cite web|url=http://www.masterbuilder.co.in/ci/293/Concrete-Pumping/ |title=Concrete Pumping to 715&nbsp;m Vertical – A New World Record Parbati Hydroelectric Project Inclined Pressure Shaft Himachal Pradesh – A case Study |publisher=The Masterbuilder |access-date=21 October 2010 |archive-url=https://archive.today/20110721155834/http://www.masterbuilder.co.in/ci/293/Concrete-Pumping/ |archive-date=21 July 2011}}</ref><ref>{{cite web |url=http://www.nbmcw.com/articles/equipment-a-machinery/5470-schwing-stetter-launches-new-truck-mounted-concrete-pump-s-36.html |title=SCHWING Stetter Launches New Truck mounted Concrete Pump S-36 |date=October 2009 |publisher=NBM&CW (New Building Materials and Construction World) |access-date=21 October 2010 |url-status=live |archive-url=https://web.archive.org/web/20110714161027/http://www.nbmcw.com/articles/equipment-a-machinery/5470-schwing-stetter-launches-new-truck-mounted-concrete-pump-s-36.html |archive-date=14 July 2011  }}</ref>

The [[Polavaram Project|Polavaram dam]] works in [[Andhra Pradesh]] on 6 January 2019 entered the [[Guinness World Records]] by pouring 32,100 cubic metres of concrete in 24 hours.<ref>{{cite web|url=https://indianexpress.com/article/india/andhra-pradesh-polavaram-project-enters-guinness-book-of-world-record-for-concrete-pouring-5526168/|title=Andhra Pradesh: Polavaram project enters Guinness Book of World Record for concrete pouring|last=Janyala|first=Sreenivas|date=January 7, 2019|website=The India Express|access-date=7 January 2020}}</ref> The world record for the largest continuously poured concrete raft was achieved in August 2007 in Abu Dhabi by contracting firm Al Habtoor-CCC Joint Venture and the concrete supplier is Unibeton Ready Mix.<ref name="Concrete Supplier for Landmark Tower">{{cite news|title=Concrete Supplier for Landmark Tower|newspaper=Construction Week Online |date=19 April 2011 |url=http://www.constructionweekonline.com/article-11966-unibeton-aims-for-93-co2-reduction/|url-status=live|archive-url=https://web.archive.org/web/20130515025317/http://www.constructionweekonline.com/article-11966-unibeton-aims-for-93-co2-reduction/|archive-date=15 May 2013}}</ref><ref name="The world record Concrete Supplier for Landmark Tower Unibeton Ready Mix">{{cite web|title=The world record Concrete Supplier for Landmark Tower Unibeton Ready Mix|url=http://www.aeconline.ae/leading-uae-construction-supplier-to-reduce-co2-emissions-in-concrete-product-27039/news.html|url-status=live|archive-url=https://web.archive.org/web/20121124093945/http://www.aeconline.ae/leading-uae-construction-supplier-to-reduce-co2-emissions-in-concrete-product-27039/news.html|archive-date=24 November 2012}}</ref> The pour (a part of the foundation for the Abu Dhabi's [[The Landmark (Abu Dhabi)|Landmark Tower]]) was 16,000 cubic meters of concrete poured within a two-day period.<ref>{{cite web|url=http://www.leighton.com.au/verve/_resources/AlHabtoorIssue24.pdf |publisher=Al Habtoor Engineering |archive-url=https://web.archive.org/web/20110308031844/http://www.leighton.com.au/verve/_resources/AlHabtoorIssue24.pdf |archive-date=8 March 2011
|title=Abu Dhabi – Landmark Tower has a record-breaking pour |date=September–October 2007| page= 7}}</ref> The previous record, 13,200 cubic meters poured in 54 hours despite a severe tropical storm requiring the site to be covered with [[tarpaulin]]s to allow work to continue, was achieved in 1992 by joint Japanese and South Korean consortiums [[Hazama Corporation]] and the [[Samsung C&T Corporation]] for the construction of the [[Petronas Towers]] in [[Kuala Lumpur]], Malaysia.<ref>National Geographic Channel International / Caroline Anstey (2005), Megastructures: Petronas Twin Towers</ref>

The world record for largest continuously poured concrete floor was completed 8 November 1997, in [[Louisville, Kentucky|Louisville]], Kentucky by design-build firm EXXCEL Project Management. The monolithic placement consisted of {{convert|225000|sqft|m2}} of concrete placed in 30 hours, finished to a flatness tolerance of F<sub>F</sub> 54.60 and a levelness tolerance of F<sub>L</sub> 43.83. This surpassed the previous record by 50% in total volume and 7.5% in total area.<ref>{{cite web
 |title       = Continuous cast: Exxcel Contract Management oversees record concrete pour
 |website     = concreteproducts.com
 |date        = 1 March 1998
 |url         = http://concreteproducts.com/mag/concrete_continuous_cast_exxcel/?smte=wr
 |access-date  = 25 August 2009
 |archive-url  = https://web.archive.org/web/20100526044112/http://concreteproducts.com/mag/concrete_continuous_cast_exxcel/?smte=wr
 |archive-date = 26 May 2010
 |df          = dmy-all
}}
</ref><ref>[http://www.exxcel.com/ Exxcel Project Management – Design Build, General Contractors] {{webarchive|url=https://web.archive.org/web/20090828125821/http://www.exxcel.com/ |date=28 August 2009}}. Exxcel.com. Retrieved 19 February 2013.</ref>

The record for the largest continuously placed underwater concrete pour was completed 18 October 2010, in New Orleans, Louisiana by contractor C. J. Mahan Construction Company, LLC of Grove City, Ohio. The placement consisted of 10,251 cubic yards of concrete placed in 58.5 hours using two concrete pumps and two dedicated concrete batch plants. Upon curing, this placement allows the {{convert|50180|sqft|m2|adj=on}} cofferdam to be dewatered approximately {{convert|26|ft|m}} below sea level to allow the construction of the [[Industrial Canal|Inner Harbor Navigation Canal]] Sill & Monolith Project to be completed in the dry.<ref>{{Cite web |url=https://www.construction.com/toolkit/reports |access-date=2022-08-13 |website=www.construction.com|title=Contractors Prepare to Set Gates to Close New Orleans Storm Surge Barrier |archive-url=https://web.archive.org/web/20130113043115/http://texas.construction.com/texas_construction_news/2011/0512_orleansstormsurgebarrier.asp|archive-date=13 January 2013|date=12 May 2011}}</ref>