Talk:Concrete

This is the talk page for discussing improvements to the Concrete article.
This is not a forum for general discussion of the article's subject.

Put new text under old text. Click here to start a new topic.
New to Wikipedia? Welcome! Learn to edit; get help.

Article policies

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

Archives: 1: 30 days

This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus.

Civil engineering Top‑importance

	Engineering portal This article is within the scope of WikiProject Civil engineering, a collaborative effort to improve the coverage of Civil engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Civil engineeringWikipedia:WikiProject Civil engineeringTemplate:WikiProject Civil engineeringCE articles
Top	This article has been rated as Top-importance on the project's importance scale.

Architecture Top‑importance

	Architecture portal This article is within the scope of WikiProject Architecture, a collaborative effort to improve the coverage of Architecture on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ArchitectureWikipedia:WikiProject ArchitectureTemplate:WikiProject ArchitectureArchitecture articles
Top	This article has been rated as Top-importance on the project's importance scale.

Materials Mid‑importance

	This article is within the scope of WikiProject Materials, a collaborative effort to improve the coverage of Materials on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MaterialsWikipedia:WikiProject MaterialsTemplate:WikiProject MaterialsMaterials articles
Mid	This article has been rated as Mid-importance on the importance scale.

Occupational Safety and Health Mid‑importance

	This article is within the scope of WikiProject Occupational Safety and Health, a collaborative effort to improve the coverage of articles related to occupational safety and health on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Occupational Safety and HealthWikipedia:WikiProject Occupational Safety and HealthTemplate:WikiProject Occupational Safety and HealthOccupational Safety and Health articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Climate change High‑importance

	This article is within the scope of WikiProject Climate change, a collaborative effort to improve the coverage of Climate change on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Climate changeWikipedia:WikiProject Climate changeTemplate:WikiProject Climate changeClimate change articles
High	This article has been rated as High-importance on the project's importance scale.
If you are looking for ways to improve this article, we recommend checking out our recommended sources and our style guide

Workability[edit]

At the top of the Workability section, there is, "Main article: Concrete slump test." I do not think that the concrete slump test article is the main article for workability. This article only shows how to test *for* workability, and does not describe what workability is. Maybe in That article could be edited with the definition of workability.

173.73.25.58 (talk) 14:54, 18 June 2020 (UTC)Bumpf[reply]

Ancient times: "Mayan concrete at the ruins of Uxmal (850-925 A.D.) is referenced in Incidents of Travel in the Yucatán by John L. Stephens."[edit]

Why is this section in ancient times when the Mayan buildings were made in anno domini??? What's weirder it that it continues then to before christ times. Mirad1000 (talk) 16:15, 9 February 2023 (UTC)[reply]

Wiki Education assignment: CHEM 300[edit]

This article was the subject of a Wiki Education Foundation-supported course assignment, between 9 January 2023 and 28 April 2023. Further details are available on the course page. Student editor(s): Etek6 (article contribs).

— Assignment last updated by Etek6 (talk) 23:57, 14 March 2023 (UTC)[reply]

Claim that concrete is the second most consumed substance[edit]

This claim comes from this source: https://www.sciencedirect.com/science/article/abs/pii/S1350630714000387 which says that concrete is the second most consumed material, at 3 tonnes per person, per year.

My concern is that the claim is made without any sources or without offering a list of other substances that is consumed less. I did some math and confirmed that more concrete is used per year than oil (numbers for oil consumption taken from here: https://en.wikipedia.org/wiki/List_of_countries_by_oil_consumption) but without a comprehensive list of substances and their yearly usage, this feels more like conjecture at the moment. Scorpiousdelectus (talk) 08:29, 4 December 2023 (UTC)[reply]

The Sciencedirect EFA article cites a book by the US Geological Survey^[1] that gives GDP numbers for a wide range of mineral products. The statement could be changed to "second most consumed material from a mineral source", but I think the way it's written is fine and accurate enough to the data available at time of writing. The USGS is constantly putting out reports on material usage that are useful for this exact comparison, so you could look up a more recent edition to support or refute the claim made here. Reconrabbit (talk) 17:30, 4 December 2023 (UTC)[reply]

References

^ Survey, U. S. Geological (2014). Mineral commodity summaries 2014 (Report). U.S. Geological Survey. doi:10.3133/70100414.

[1] Survey, U. S. Geological (2014). Mineral commodity summaries 2014 (Report). U.S. Geological Survey. doi:10.3133/70100414.

[1]