Fatigue behavior of polymer-modified porous concretes
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hdl:2117/2482
Tipus de documentArticle
Data publicació1999
EditorElsevier
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Highly permeable materials provide drainage and noise absorption properties that are useful
in pavement top-layers. In such porous concretes, the voids reduce the mechanical integrity,
which may have to be compensated by the incorporation of non-conventional components,
such as polymers. A basic property needed for the design of pavements is the fatigue behavior
of the material, which has not been studied thoroughly for polymer modified porous
concretes. The paper presents experimental results of fatigue tests in compression in terms of
Wöhler curves for four porous concretes (two of them with polymer). It is seen that the
polymer modified porous concretes exhibit better fatigue behavior than those without
polymer. However, the improvement decreases for low values of the stress level, S, and
appears to be negligible for the case of traffic loads in main roads or highways (number of
load cycles, N >106). Additionally, the deformation and internal temperature evolutions have
been monitored, and it is concluded that their trends are similar to those of conventional
concrete, with temperature increases significantly higher than in conventional concretes.
CitacióPindado, M.A.; Aguado, A.; Josa, A. Fatigue behavior of polymer-modified porous concretes. Cement and concrete research. 1999, vol. 29, no. 7, pp. 1077-1083.
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