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单词 grappier
释义 grappier
(ˈgræpɪə(r), grapje)
[Fr., f. grappe (as in grappes de la chaux).]
One of the hard lumps of unslaked material sometimes left in hydraulic lime after it has been slaked. In Comb., as grappier cement, cement made by grinding grappiers to a powder.
1897Jrnl. Soc. Chem. Ind. XVI. 889/1 The hardest burned portions, called ‘Grappiers’, of the celebrated Teil hydraulic lime.1905E. C. Eckel Cements 185 Grappier cements are made by grinding finely the lumps of unburned and overburned material which remain when a hydraulic lime is slaked.1922A. P. Mills Materials of Construction (ed. 2) i. iv. 30 As a rule all of the grappiers are finely ground under millstones and a certain proportion is added to the lime... The ground grappiers are also separately marketed as a special cement known as grappier cement.1970F. M. Lea Chem. Cement & Concrete (ed. 3) ii. 12 Such sintered lumps are sometimes separated and form, after grinding, the French ‘grappier’ cement, a product closely akin to the natural cements.
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更新时间:2024/12/22 0:16:44