FraMCoS 2 1995 Zurich, Switzerland

Representative Volumes of Cementitious Materials

Representative volume is redefined from statistical a representative relationship is established among local volume under consideration, V, a effective corresponding to the volume, nv, and the coefficient of effective property, Po.. Then, an arbitrary level of the variation can set,…

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Year 1995
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Abstract

Representative volume is redefined from statistical a representative relationship is established among local volume under consideration, V, a effective corresponding to the volume, nv, and the coefficient of effective property, Po.. Then, an arbitrary level of the variation can set, any V corresponding to a variation below 0 considered to be acceptable as representative volume. The present focus on Po. due to variation local volume depends on the local microstructural configuration, and can autocorrelation function of internal structure of autocorrelation function is formulated based on a rnr'~~·~'' ................ ...., ..... mosaic pattern. The representative of a two phase composite, concrete, example. 1 Representative volume (RV) of a composite material has been roa-.--,..,c,,.,, minimum volume on which the measured 635 considered IS engineering practice . ........... ' ......... J, ...... ..., ....... 11,,,.u_ question, now, is to ..... ...,1 .. ..., ............... _.., • ..., .1..1. .. U.i.L"-'.ll . .1.u..1. property, Pn, certain volume. a composite there are two possible sources that induce variations of....,,_,..,·"""'''".., microstructural ..,'-/,U.JL.1.F.,..,.,, ....... ,,,._, aggregate in the case of concrete. Apparently, the fraction depend on the size on of the global average.