superplasticizern.
/ˌsuːpəˈplastᵻsʌɪzə/, /ˌsjuːpəˈplastᵻsʌɪzə/, U.S. /ˈˌsupərˈplæstəˌsaɪzər/ Any of various synthetic dispersing agents used in concrete manufacture to increase the fluidity of particulate mixes, enabling a significant reduction in water content.
ΚΠ
1974 Concrete Nov. 24/3 The new ‘super-plasticisers’ have already been used with success for special cases in conjunction with pumped concrete.
1976 D. W. Quinion Superplasticizers in Concrete i. 7 The first superplasticizer was developed and marketed by The Kao Soap Company of Japan in 1965 as a product named ‘Mighty’.
1992 Public Wks. Jan. 43/3 The mix per cu yd consisted of..3.2 lb of superplasticizer, and 300 lb of water.
2006 Engin. News-Record (Nexis) 13 Mar. 26 A mixture of portland cement, a stabilizer, superplasticizers and non-chloride accelerator is producing a concrete pavement ready to be used in four hours, rather than 10 days.
This is a new entry (OED Third Edition, June 2012; most recently modified version published online March 2022).
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n.1974