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STRENGTHS OF BRICK AND OTHER STRUCTURAL SILICATES 1
Author(s) -
Griffith John H.
Publication year - 1931
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1931.tb16611.x
Subject(s) - geodetic datum , brick , modulus , space (punctuation) , mathematics , materials science , geology , composite material , computer science , geometry , geodesy , operating system
It is found from a survey of the important researches on building stones and heavy clay products in the last fifty years that the strength data may be formulated by the lawwhere p = stress at rupture c = efficiency or relation factor S = parameter of dimensions stress A = per cent of sensible pore space determined by degree of absorption vater by weight A0 = parameter, taking account of the insensible or colloidal pore space e = probable error for a single datum The working law obtained where it was possible to place the data on a strict mechanical parity isfor the compression strengths and a conservative value of ⅙ of this amount for the modulus of rupture, the latter varying from ⅙ to ¼ depending upon the particular technique of tests. The probable error has been selected at ±0.25 but is usually smaller, this also being conditioned by manipulative technique. It is ½ this amount for five tests and ⅓ for ten tests, the variations now existing being considerably reduced by precise methods of testing.