Badania rozmieszczenia zbrojenia rozproszonego w betonach SCC

W artykule przedstawiono wpływ wybranej metody formowania betonu SCC na rozmieszczenie włókien stalowych. Zaprezentowano analizę przekrojów próbek elementów belkowych, wykonanych z betonu modyfikowanego włóknami stalowymi i formowanych podczas badania L-box. Analizę wykonano przy pomocy autorskiego programu komputerowego do badania obrazu zgładów fibrobetonowych.

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In the paper the influence of chosen forming method of Self-Compacting Concrete on distribution of fibres are presented and discussed. In this paper an analysis is presented which deals with cross-sections of SCC concrete beams in which steel fibres were applied and L-box test formed. This analysis was carried out using special software for the analysis of polished micro-sections of fibre-concretes. Analysis of the impact this randomness has on workability and strength parameters of concrete is one of the present trends in investigation of normal and self-compacting concretes. The lack of regularity and directional reorientation of fibres during technological processes causes some problems, linked with their random distribution in the concrete mass and it was confirm in presented research.