LAITANCE
Etymology
Noun
laitance (plural laitances)
(construction) A weak, milky layer of cement and aggregate fines on a concrete surface that is usually caused by an overwet mixture, overworking the mixture, improper or excessive finishing or combination thereof. Also, could be caused when a slurry mix is used on a deep foundation, where the slurry mix is not completely removed before placing concrete on top.
(construction) The weak top layer of cement and aggregate fines on a concrete surface that stands between a topical coating and the underlying substrate. This laitance layer prevents a bond forming between the topical coating and substrate, whereby it causes delamination of the topical coating as the laitance layer fails first.
Anagrams
• Alicante, analcite
Source: Wiktionary
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Word of the Day
19 June 2025
ROOTS
(noun) the condition of belonging to a particular place or group by virtue of social or ethnic or cultural lineage; “his roots in Texas go back a long way”; “he went back to Sweden to search for his roots”; “his music has African roots”
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