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Title: Performance of Fiber-Reinforced Concrete with Expanding Component and Glass-Polymer Composite Fiber

Author(s): Vadim Solovyov, Yury Bazhenov, Vyacheslav Falikman, and Marsel Nurtdinov

Publication: Symposium Paper

Volume: 326


Appears on pages(s): 66.1-66.8

Keywords: glass-polymer composite fiber (GPCF); fiber-reinforced concrete; performance; adhesion; sustainability

DOI: 10.14359/51711049

Date: 8/10/2018


The properties of fiber-reinforced concrete with glass-polymer composite fiber (GPCF) was investigated. It is established that the use of GPCF in concrete mixes in an amount of 0.5 to 2.5% vol. leads to the reduction of slump from 20 cm (8 in.) to 5 cm (2 in.) and the reduction of an average density by 50-100 kg/m3 (3-6 lb/ft3), and also increases the air content by 0.3 ... 0.6%. The effect of GPCF on concrete strength on was determined for concrete classes B20-B40. Thus, the introduction of fibers into concrete up to 2.5% vol. leads to maximum compressive strength increase up to 10%, and flexural strength increase up to 36%. The main factors affecting the efficiency of GPCF in a concrete matrix were established. The test results for determining the load of breaking out of individual fibers from a concrete matrix, established using a specially developed technique, are presented. The main types of destruction are fixed, when individual fibers are pulled out from the matrix, and corresponding "load-strain" diagrams are reported. The ways for efficiency increasing of developed GPCF concrete are reported.