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Comparison of Different Methods for Determination of Modulus of Elasticity of Composite Reinforcement Produced from Roving

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Abstract:

Currently, high performance concrete (HPC) is becoming more and more popular mainly because of its great mechanical parameters. As in the case of ordinary power concrete (OPC) it is necessary to improve the load bearing capacity with using of reinforcement. The present age calls for using of very thin structures for reasons of both environmental parameters and visual quality. Based on this fact, reinforcement start to use durable composite materials, such as technical textiles made of them. Element of HPC with this type of reinforcement is called textile reinforced high performance concrete (TRHPC). It is impossible to use the traditional approach for usually used steel reinforcement if we want to design these extra-thin structures. Modeled structures are very sensitive for input parameters and the development of standards for TRC material lags. The present study is focused on the different method of approach for the determination of tensile modulus of composite reinforcement. Three used methods are compared with each other using numerical analysis of four point bending test of façade element for one type of used reinforcement. Curves from numerical analysis are finally compared with the curve from real experiment and based on this the final evaluation is generated.

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Periodical:

Advanced Materials Research (Volume 1054)

Pages:

104-109

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1054.104

Citation:

Cite this paper

Online since:

October 2014

Authors:

Tomáš Vlach*, Lenka Laiblová, Alexandru Chira, Magdaléna Novotná, Ctislav Fiala, Michal Ženíšek, Petr Hájek

Keywords:

Ar-Glass Fiber Roving, Composite Reinforcement, Epoxy Resin, High-Performance Concrete (HPC), Modulus of Elasticity, Textile Reinforced Concrete

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* - Corresponding Author

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