Analysis of results of the aggregate microtexture evaluation by volumetric characteristics

E-ISSN： 2261-236x|117|issue|00046-00046

ISSN： 2261-236x

Source： MATEC Web of conference, Vol.117, Iss.issue, 2017-07, pp. : 00046-00046

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Abstract

The article is concerned about the evaluation of aggregate microtexture. It is very important parameter from the traffic safety point of view and is described as a configuration of small irregularities on the aggregate surface. The new evaluating approach of aggregate microtexture based on the 3-D method is described in this article. 3-D model of surface of aggregate particle was generated from the measurements by microscope method. New program was developed for quantification of aggregate microtexture by a volumetric characteristics. Usability of this method was tested on samples of two coarse aggregate fraction taken from the eleven different quarries in Slovakia. The results of this evaluation have shown a high variability of values of volumetric characteristics between the fractions of aggregate and also between quarries.