英语词汇“Roman cement”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Roman cement

/ˌrəʊmən sɪˈmɛnt/

Now chiefly historical

noun

1Hydraulic cement used by the Romans, made from pozzolana.

2Any of various fast-setting hydraulic cements made by the addition of chalky or clayey matter to water and lime or sand.

The first modern Roman cement was that made by James Parker of Northfleet, Kent, by grinding and calcining septaria found on the beach on the Isle of Sheppey (to which water was added to make the cement), and patented in 1796 (British Patent 2120); the name does not appear in the specification of the patent, but is used in an advertising circular published soon afterwards..

Mid 18th century. From Roman + cement. Compare French †ciment des Romains, ciment romain.

单词	Roman cement
释义	Roman cement /ˌrəʊmən sɪˈmɛnt/ Now chiefly historical noun 1Hydraulic cement used by the Romans, made from pozzolana. 2Any of various fast-setting hydraulic cements made by the addition of chalky or clayey matter to water and lime or sand. The first modern Roman cement was that made by James Parker of Northfleet, Kent, by grinding and calcining septaria found on the beach on the Isle of Sheppey (to which water was added to make the cement), and patented in 1796 (British Patent 2120); the name does not appear in the specification of the patent, but is used in an advertising circular published soon afterwards.. Origin Mid 18th century. From Roman + cement. Compare French †ciment des Romains, ciment romain.
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