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Investigación de vangarda para o desenvolvemento sostible

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Investigación de vangarda para o desenvolvemento sostible

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2018

Seara-Paz, Sindy; González-Fonteboa, Belén; Martínez-Abella, Fernando; Eiras-López, Javier

Flexural performance of reinforced concrete beams made with recycled concrete coarse aggregate Journal Article

In: Engineering Structures, vol. 156, pp. 32-45, 2018, ISSN: 01410296, (cited By 75).

Abstract | Links | BibTeX | Etiquetas: aggregate; bending; cracking (fracture); curvature; deflection; flexure; performance assessment; reinforced concrete; strain; structural component, Aggregates; Bending moments; Concrete beams and girders; Concretes; Crack initiation; Cracks; Deflection (structures); Recycling; Reinforced concrete, Concrete aggregates, Flexural performance; Four-point bending test; Recycled coarse aggregate; Recycled concrete coarse aggregate; Recycled concretes; Reinforced concrete beams; Serviceability; Water to cement (binder) ratios

@article{Seara-Paz201832,

title = {Flexural performance of reinforced concrete beams made with recycled concrete coarse aggregate},

author = {Sindy Seara-Paz and Belén González-Fonteboa and Fernando Martínez-Abella and Javier Eiras-López},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034022704&doi=10.1016%2fj.engstruct.2017.11.015&partnerID=40&md5=4ebb8ab46cfb200f8a4ca07ff5ac479d},

doi = {10.1016/j.engstruct.2017.11.015},

issn = {01410296},

year  = {2018},

date = {2018-01-01},

urldate = {2018-01-01},

journal = {Engineering Structures},

volume = {156},

pages = {32-45},

publisher = {Elsevier Ltd},

abstract = {This work deals with the flexural performance of recycled concrete subjected to increasing loads up to failure. For this purpose, eight reinforced concrete beams were made with recycled coarse aggregates using two different water to cement ratios (0.50 and 0.65) and four replacement percentages (0%, 20%, 50% and 100%). Firstly, the basic concrete properties were determined (mechanical strengths and modulus of elasticity) and then, beam specimens were loaded up to failure using a four-point bending test at 28 days. As a result, bending moments, deflections, strains and curvatures were obtained at different load levels (cracking, service, yielding and ultimate state conditions), and also, the crack pattern. On the basis of these results, it can be noted that service, yielding and ultimate state of recycled concrete exhibits, in general, a similar trend to that of conventional concrete. However, the cracking behaviour shows differences between recycled and conventional concrete. Finally, code-based expressions were used to calculate bending moments and deflections under flexural load, taking into account the different content of recycled coarse aggregate. © 2017 Elsevier Ltd},

note = {cited By 75},

keywords = {aggregate; bending; cracking (fracture); curvature; deflection; flexure; performance assessment; reinforced concrete; strain; structural component, Aggregates; Bending moments; Concrete beams and girders; Concretes; Crack initiation; Cracks; Deflection (structures); Recycling; Reinforced concrete, Concrete aggregates, Flexural performance; Four-point bending test; Recycled coarse aggregate; Recycled concrete coarse aggregate; Recycled concretes; Reinforced concrete beams; Serviceability; Water to cement (binder) ratios},

pubstate = {published},

tppubtype = {article}

}