Journal
MATERIALS
Volume 13, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/ma13235548
Keywords
geopolymer; fly ash based geopolymer; steel fiber; melamine fiber; hybrid reinforcement
Categories
Funding
- Polish National Centre for Research and Development under the LIDER [LIDER/31/0168/L-10/18/NCBR/2019]
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This study investigated the influence of the steel and melamine fibers hybridization on the flexural and compressive strength of a fly ash-based geopolymer. The applied reinforcement reduced the geopolymer brittleness. Currently, there are several types of polymer fibers available on the market. However, the authors did not come across information on the use of melamine fibers in geopolymer composites. Two systems of reinforcement for the composites were investigated in this work. Reinforcement with a single type of fiber and a hybrid system, i.e., two types of fibers. Both systems strengthened the base material. The research results showed the addition of melamine fibers as well as steel fibers increased the compressive and flexural strength in comparison to the plain matrix. In the case of a hybrid system, the achieved results showed a synergistic effect of the introduced fibers, which provided better strength results in relation to composites reinforced with a single type of fiber in the same amount by weight.
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