Fracture Behaviour of Geopolymer Mortars Reinforced with Hemp Fibres
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU133533" target="_blank" >RIV/00216305:26110/19:PU133533 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Fracture Behaviour of Geopolymer Mortars Reinforced with Hemp Fibres
Original language description
The main attention is focused on the evaluation of three-point bending fracture tests of prismatic specimens with an initial central edge notch made of selected fly ash based geopolymer mortars reinforced with hemp fibres. The design of selected mix composition was performed based on the preliminary research work which included the analysis of different fly ash types and quantities, as well as the different content of hemp fibres influence on the compressive and flexural strength. The load vs. displacement (deflection in the middle of span length) diagrams were recorded during the fracture tests and discussed. Mechanical fracture parameters were subsequently evaluated using the Effective Crack Model and Work-of-fracture method: modulus of elasticity, effective fracture toughness and specific fracture energy. The obtained results show that the fracture parameters increased with addition of hemp fibres up to 10% in case of effective fracture toughness and more than threefold in the case of specific fracture energy. It seems that the obtained results comply with the assumptions that the addition of fibres into alkali activated matrix should lead to reduce cracking tendency and improve tensile properties of these materials. On the other hand, it is necessary to perform more tests or determine other parameters to affirm these pilot results.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
FIB 2018 - Proceedings for the 2018 fib Congress: Better, Smarter, Stronger
ISBN
978-1-877040-15-3
ISSN
2617-4820
e-ISSN
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Number of pages
11
Pages from-to
3627-3637
Publisher name
Fédération internationale du béton (fib)
Place of publication
Switzerland
Event location
Melbourne
Event date
Oct 7, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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