laitance
English
editEtymology
editNoun
editlaitance (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.
References
edit- https://www.merriam-webster.com/dictionary/laitance Accessed Oct. 2019
- https://www.dictionary.com/browse/laitance Random House Unabridged, accessed Oct. 2019
Anagrams
editFrench
editEtymology
editPronunciation
editNoun
editlaitance f (plural laitances)
Descendants
edit- → English: laitance
Further reading
edit- “laitance”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.
Categories:
- English terms borrowed from French
- English terms derived from French
- English lemmas
- English nouns
- English countable nouns
- en:Construction
- French terms suffixed with -ance
- French 2-syllable words
- French terms with IPA pronunciation
- French terms with audio links
- French lemmas
- French nouns
- French countable nouns
- French feminine nouns