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1 2009

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Methods for the determination of the modulus of elasticity of composite materials used in a pavement structure

Vinclerova S., Panulinova E., Kormanikova E., Kotrasova K.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

2009

z. 53 [265]

153-162

Road building materials are exposed to forces caused by traffic load, climatic influences, but above all to air temperature changes and moisture. These effects manifest themselves in the cyclic changes in a pavement structure and its sub-grade. Force effects induce complicated stress and strain condition in individual pavement layers. The strain of various materials caused by the same load is different and depends on their deformation characteristics. The deformation characteristics of road building materials are important inputs in the project and design of a road pavement structure. More demanding requirements on materials as well as ecological considerations regarding the utilization of materials in construction, and other issues, require more research and the creation of new materials with outstanding and more suitable physical properties than those offered by the current materials. One of the major research results is the discovery of modem materials called composites. The geometrical and physical structure of the composite material influences its overall characteristics. The analytical modelling of the particle components of composites, the so-called quasi-homogenous and quasi-isotropic models of compact materials, enables to assume and define these characteristics.