TY - JFULL AU - Arturs Macanovskis and Vitalijs Lusis and Andrejs Krasnikovs PY - 2014/5/ TI - Crack Opening Investigation in Fiberconcrete T2 - International Journal of Civil and Environmental Engineering SP - 437 EP - 445 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/9998056 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 88, 2014 N2 - This work had three stages. In the first stage was examined pull-out process for steel fiber was embedded into a concrete by one end and was pulled out of concrete under the angle to pulling out force direction. Angle was varied. On the obtained forcedisplacement diagrams were observed jumps. For such mechanical behavior explanation, fiber channel in concrete surface microscopical experimental investigation, using microscope KEYENCE VHX2000, was performed. At the second stage were obtained diagrams for load- crack opening displacement for breaking homogeneously reinforced and layered fiberconcrete prisms (with dimensions 10x10x40cm) subjected to 4-point bending. After testing was analyzed main crack. At the third stage elaborated prediction model for the fiberconcrete beam, failure under bending, using the following data: a) diagrams for fibers pulling out at different angles; b) experimental data about steel-straight fibers locations in the main crack. Experimental and theoretical (modeling) data were compared. ER -