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Publikācija: Crack Development Research in Extra Fine Aggregate Cement Composites

Publication Type Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Crack Development Research in Extra Fine Aggregate Cement Composites
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Authors Andīna Sprince
Leonīds Pakrastiņš
Bruno Bašķers
Līga Gaile
Keywords cement-based matrix, fibre reinforced concretes, high performance concretes, PVA fibres
Abstract 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.
DOI: 10.17770/etr2015vol1.199
Hyperlink: http://journals.ru.lv/index.php/ETR/article/view/199 
Reference Sprince, A., Pakrastiņš, L., Bašķers, B., Gaile, L. Crack Development Research in Extra Fine Aggregate Cement Composites. In: Environment. Technology. Resources: Proceedings of the International Scientific and Practical Conference, Latvia, Rēzekne, 18-20 June, 2015. Rēzekne: Rēzeknes augstskola, 2015, pp.205-208. ISBN 978-9984-44-171-9. ISSN 1691-5402. e-ISSN 2256-070X. Available from: doi:10.17770/etr2015vol1.199
Additional information Citation count:
ID 20502