Crack Development Research in Extra Fine Aggregate Cement Composites


  • Andina Sprince Riga Technical University (LV)
  • Leonids Pakrastinsh Riga Technical University (LV)
  • Bruno Baskers Riga Technical University (LV)
  • Liga Gaile Riga Technical University (LV)



cement-based matrix, fibre reinforced concretes, high performance concretes, PVA fibres


The cracking properties in cement-based composites widely influences mechanical behavior of construction structures. The challenge of present investigation is to evaluate the crack propagation near the crack tip. During experiments the tension strength and crack mouth opening displacement of several types of concrete compositions was determined. For each composition the Compact Tension (CT) specimens were prepared with dimensions 150x150x12mm. Specimens were subjected to a tensile load. Deformations and crack mouth opening displacement were measured with extensometers. Cracks initiation and propagation were analyzed using a digital image analysis technique. The formation and propagation of the tensile cracks was traced on the surface of the specimens using a high resolution digital camera with 60 mm focal length. Images were captured during testing with a time interval of one second. The obtained experimental curve shows the stages of crack development.


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How to Cite

A. Sprince, L. Pakrastinsh, B. Baskers, and L. Gaile, “Crack Development Research in Extra Fine Aggregate Cement Composites”, ETR, vol. 1, pp. 205–208, Jun. 2015, doi: 10.17770/etr2015vol1.199.