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http://dx.doi.org/10.12989/scs.2020.34.4.581

Structural lightweight concrete containing expanded poly-styrene beads; Engineering properties  

Vakhshouri, Behnam (Faculty of Engineering and Information Technology, School of Civil and Environmental Engineering, University of Technology Sydney)
Publication Information
Steel and Composite Structures / v.34, no.4, 2020 , pp. 581-597 More about this Journal
Abstract
Light-Weight Concrete containing Expanded Poly-Styrene Beads (EPS-LWC) is an approved structural and non-structural material characterized by a considerably lower density and higher structural efficiency, compared to concrete containing ordinary aggregates. The experimental campaign carried out in this project provides new information on the mechanical properties of structural EPS-LWC, with reference to the strength and tension (by splitting and in bending), the modulus of elasticity, the stress-strain curve in unconfined compression, the absorbed energy under compression and reinforcement-concrete bond. The properties measured at seven ages since casting, from 3 days to 91 days, in order to investigate their in-time evolution. Mathematical relationships are formulated as well, between the previous properties and time, since casting. The dependence of the compressive strength on the other mechanical properties of EPS-LWC is also described through an empirical relationship, which is shown to fit satisfactorily the experimental results.
Keywords
expanded polystyrene; lightweight concrete; Splitting tensile strength; flexural strength; compressive stress-strain curve; energy absorption; bond-slip; age factor;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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