Materials 2012, 5(11), 2342-2352; doi:10.3390/ma5112342
Article

Time-Dependent Behavior of Reinforced Polymer Concrete Columns under Eccentric Axial Loading

Department of Civil Engineering, University of Salerno, Via Ponte Don Melillo 1, Fisciano (SA) 84084, Italy
* Author to whom correspondence should be addressed.
Received: 17 October 2012; in revised form: 9 November 2012 / Accepted: 14 November 2012 / Published: 16 November 2012
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Abstract: Polymer concretes (PCs) represent a promising alternative to traditional cementitious materials in the field of new construction. In fact, PCs exhibit high compressive strength and ultimate compressive strain values, as well as good chemical resistance. Within the context of these benefits, this paper presents a study on the time-dependent behavior of polymer concrete columns reinforced with different bar types using a mechanical model recently developed by the authors. Balanced internal reinforcements are considered (i.e., two bars at both the top and bottom of the cross-section). The investigation highlights relevant stress and strain variations over time and, consequently, the emergence of a significant decrease in concrete’s stiffness and strength over time. Therefore, the results indicate that deferred effects due to viscous flow may significantly affect the reliability of reinforced polymer concrete elements over time.
Keywords: reinforced polymer concretes; new construction; long-term behavior; numerical analysis; reliability

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MDPI and ACS Style

Berardi, V.P.; Mancusi, G. Time-Dependent Behavior of Reinforced Polymer Concrete Columns under Eccentric Axial Loading. Materials 2012, 5, 2342-2352.

AMA Style

Berardi VP, Mancusi G. Time-Dependent Behavior of Reinforced Polymer Concrete Columns under Eccentric Axial Loading. Materials. 2012; 5(11):2342-2352.

Chicago/Turabian Style

Berardi, Valentino P.; Mancusi, Geminiano. 2012. "Time-Dependent Behavior of Reinforced Polymer Concrete Columns under Eccentric Axial Loading." Materials 5, no. 11: 2342-2352.

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