Flow table test: Difference between revisions

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{{Short description|Concrete consistency test}}

[[Image:Flow Test Equipment.JPG|thumb|300px|Equipment; flow table, Abrams cone, waterbucketwater bucket and broom.]]

[[Image:Flow Test before.JPG|thumb|300px|The cone filled with concrete, prior to lifting.]]

[[Image:Flow Test after.JPG|thumb|300px|The diameter of the resulting flow is measured.]]

The '''flow table test''' or '''flow test''', also known as the '''slump-flow test''', is a method to determine consistency of fresh [[concrete]]. '''Flow table test''' is also used to identify transportable moisture limit of solid bulk cargoes.<ref>{{cite web|url=http://tmltesting.com/w/index.php?title=Flow_Table_Test|title=Flow Table Test - TML Testing Wiki|website=tmltesting.com|access-date=2015-06-11|archive-url=https://web.archive.org/web/20170501222131/http://tmltesting.com/w/index.php?title=Flow_Table_Test|archive-date=2017-05-01|url-status=dead}}</ref> It is used primarily for assessing concrete that is too fluid (workable) to be measured using the [[Concrete slump test|slump test]], because the concrete will not retain its shape when the cone is removed.

==Application ==

When fresh concrete is delivered to a site by a truck mixer, its consistency needs to be checked before it is poured into [[formwork]].

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* The cone is lifted, allowing the concrete to flow.

* The flow table is then lifted up 40mm and then dropped 15 times, causing the concrete to flow.

* After this the diameter of flow of the concrete is measured.

==See also==

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* [[Self-consolidating concrete]]

==References==

==Links and Sources==

{{Reflist}}

==External links and sources==

*DIN EN 12350-5

*{{Citation |title=ASTM C 1437 - 15|url=http://www.astm.org/Standards/C1437.htm}} Standard Test Method for Flow of Hydraulic Cement Mortar

*[http://www.b-i-m.de/lexikon/INHALT/ausbreitv.htm b-i-m] (German)

*[http://www.betontechnischedaten.de/Kapitel11/11_1.htm#Anchor2 Heidelberg Cement] (German)

*[https://web.archive.org/web/20060928004151/http://www.controls.it/products.php?code=43&page=Workability_&_consistency&product=61&prod_name=Flow_table Concrete Flow Table in an online shop]

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==References==

{{Reflist}}

[[Category:Concrete testing techniques]]